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763 lines
37 KiB
Plaintext
763 lines
37 KiB
Plaintext
/**
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* INTERNAL use only. This is an experimental API subject to change without notice.
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*
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* Provides classes and predicates for dealing with flow models specified in CSV format.
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*
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* The CSV specification has the following columns:
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* - Sources:
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* `namespace; type; subtypes; name; signature; ext; output; kind`
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* - Sinks:
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* `namespace; type; subtypes; name; signature; ext; input; kind`
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* - Summaries:
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* `namespace; type; subtypes; name; signature; ext; input; output; kind`
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*
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* The interpretation of a row is similar to API-graphs with a left-to-right
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* reading.
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* 1. The `namespace` column selects a package.
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* 2. The `type` column selects a type within that package.
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* 3. The `subtypes` is a boolean that indicates whether to jump to an
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* arbitrary subtype of that type.
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* 4. The `name` column optionally selects a specific named member of the type.
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* 5. The `signature` column optionally restricts the named member. If
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* `signature` is blank then no such filtering is done. The format of the
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* signature is a comma-separated list of types enclosed in parentheses. The
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* types can be short names or fully qualified names (mixing these two options
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* is not allowed within a single signature).
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* 6. The `ext` column specifies additional API-graph-like edges. Currently
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* there are only two valid values: "" and "Annotated". The empty string has no
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* effect. "Annotated" applies if `name` and `signature` were left blank and
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* acts by selecting an element that is annotated by the annotation type
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* selected by the first 4 columns. This can be another member such as a field
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* or method, or a parameter.
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* 7. The `input` column specifies how data enters the element selected by the
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* first 6 columns, and the `output` column specifies how data leaves the
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* element selected by the first 6 columns. An `input` can be either "",
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* "Argument[n]", "Argument[n1..n2]", "ReturnValue":
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* - "": Selects a write to the selected element in case this is a field.
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* - "Argument[n]": Selects an argument in a call to the selected element.
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* The arguments are zero-indexed, and `-1` specifies the qualifier.
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* - "Argument[n1..n2]": Similar to "Argument[n]" but select any argument in
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* the given range. The range is inclusive at both ends.
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* - "ReturnValue": Selects a value being returned by the selected element.
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* This requires that the selected element is a method with a body.
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*
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* An `output` can be either "", "Argument[n]", "Argument[n1..n2]", "Parameter",
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* "Parameter[n]", "Parameter[n1..n2]", or "ReturnValue":
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* - "": Selects a read of a selected field, or a selected parameter.
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* - "Argument[n]": Selects the post-update value of an argument in a call to the
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* selected element. That is, the value of the argument after the call returns.
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* The arguments are zero-indexed, and `-1` specifies the qualifier.
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* - "Argument[n1..n2]": Similar to "Argument[n]" but select any argument in
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* the given range. The range is inclusive at both ends.
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* - "Parameter": Selects the value of a parameter of the selected element.
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* "Parameter" is also allowed in case the selected element is already a
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* parameter itself.
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* - "Parameter[n]": Similar to "Parameter" but restricted to a specific
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* numbered parameter (zero-indexed, and `-1` specifies the value of `this`).
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* - "Parameter[n1..n2]": Similar to "Parameter[n]" but selects any parameter
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* in the given range. The range is inclusive at both ends.
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* - "ReturnValue": Selects the return value of a call to the selected element.
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* 8. The `kind` column is a tag that can be referenced from QL to determine to
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* which classes the interpreted elements should be added. For example, for
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* sources "remote" indicates a default remote flow source, and for summaries
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* "taint" indicates a default additional taint step and "value" indicates a
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* globally applicable value-preserving step.
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*/
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import java
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private import semmle.code.java.dataflow.DataFlow::DataFlow
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private import internal.DataFlowPrivate
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private import internal.FlowSummaryImpl::Private::External
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private import internal.FlowSummaryImplSpecific
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private import internal.AccessPathSyntax
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private import FlowSummary
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/**
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* A module importing the frameworks that provide external flow data,
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* ensuring that they are visible to the taint tracking / data flow library.
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*/
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private module Frameworks {
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private import internal.ContainerFlow
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private import semmle.code.java.frameworks.android.Android
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private import semmle.code.java.frameworks.android.ContentProviders
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private import semmle.code.java.frameworks.android.Intent
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private import semmle.code.java.frameworks.android.Notifications
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private import semmle.code.java.frameworks.android.SharedPreferences
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private import semmle.code.java.frameworks.android.Slice
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private import semmle.code.java.frameworks.android.SQLite
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private import semmle.code.java.frameworks.android.Widget
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private import semmle.code.java.frameworks.android.XssSinks
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private import semmle.code.java.frameworks.ApacheHttp
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private import semmle.code.java.frameworks.apache.Collections
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private import semmle.code.java.frameworks.apache.IO
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private import semmle.code.java.frameworks.apache.Lang
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private import semmle.code.java.frameworks.Flexjson
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private import semmle.code.java.frameworks.generated
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private import semmle.code.java.frameworks.guava.Guava
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private import semmle.code.java.frameworks.jackson.JacksonSerializability
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private import semmle.code.java.frameworks.javaee.jsf.JSFRenderer
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private import semmle.code.java.frameworks.JavaIo
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private import semmle.code.java.frameworks.JavaxJson
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private import semmle.code.java.frameworks.JaxWS
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private import semmle.code.java.frameworks.JoddJson
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private import semmle.code.java.frameworks.JsonJava
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private import semmle.code.java.frameworks.Logging
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private import semmle.code.java.frameworks.Objects
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private import semmle.code.java.frameworks.OkHttp
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private import semmle.code.java.frameworks.Optional
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private import semmle.code.java.frameworks.Regex
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private import semmle.code.java.frameworks.Retrofit
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private import semmle.code.java.frameworks.Stream
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private import semmle.code.java.frameworks.Strings
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private import semmle.code.java.frameworks.ratpack.Ratpack
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private import semmle.code.java.frameworks.ratpack.RatpackExec
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private import semmle.code.java.frameworks.spring.SpringCache
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private import semmle.code.java.frameworks.spring.SpringContext
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private import semmle.code.java.frameworks.spring.SpringHttp
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private import semmle.code.java.frameworks.spring.SpringUtil
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private import semmle.code.java.frameworks.spring.SpringUi
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private import semmle.code.java.frameworks.spring.SpringValidation
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private import semmle.code.java.frameworks.spring.SpringWebClient
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private import semmle.code.java.frameworks.spring.SpringBeans
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private import semmle.code.java.frameworks.spring.SpringWebMultipart
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private import semmle.code.java.frameworks.spring.SpringWebUtil
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private import semmle.code.java.security.AndroidIntentRedirection
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private import semmle.code.java.security.ResponseSplitting
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private import semmle.code.java.security.InformationLeak
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private import semmle.code.java.security.Files
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private import semmle.code.java.security.GroovyInjection
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private import semmle.code.java.security.ImplicitPendingIntents
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private import semmle.code.java.security.JexlInjectionSinkModels
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private import semmle.code.java.security.JndiInjection
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private import semmle.code.java.security.LdapInjection
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private import semmle.code.java.security.MvelInjection
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private import semmle.code.java.security.OgnlInjection
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private import semmle.code.java.security.XPath
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private import semmle.code.java.security.XsltInjection
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private import semmle.code.java.frameworks.Jdbc
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private import semmle.code.java.frameworks.Jdbi
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private import semmle.code.java.frameworks.HikariCP
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private import semmle.code.java.frameworks.SpringJdbc
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private import semmle.code.java.frameworks.MyBatis
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private import semmle.code.java.frameworks.Hibernate
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private import semmle.code.java.frameworks.jOOQ
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private import semmle.code.java.frameworks.JMS
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private import semmle.code.java.frameworks.RabbitMQ
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private import semmle.code.java.regex.RegexFlowModels
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private import semmle.code.java.frameworks.KotlinStdLib
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}
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private predicate sourceModelCsv(string row) {
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row =
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[
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// org.springframework.security.web.savedrequest.SavedRequest
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"org.springframework.security.web.savedrequest;SavedRequest;true;getRedirectUrl;;;ReturnValue;remote",
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"org.springframework.security.web.savedrequest;SavedRequest;true;getCookies;;;ReturnValue;remote",
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"org.springframework.security.web.savedrequest;SavedRequest;true;getHeaderValues;;;ReturnValue;remote",
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"org.springframework.security.web.savedrequest;SavedRequest;true;getHeaderNames;;;ReturnValue;remote",
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"org.springframework.security.web.savedrequest;SavedRequest;true;getParameterValues;;;ReturnValue;remote",
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"org.springframework.security.web.savedrequest;SavedRequest;true;getParameterMap;;;ReturnValue;remote",
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// ServletRequestGetParameterMethod
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"javax.servlet;ServletRequest;false;getParameter;(String);;ReturnValue;remote",
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"javax.servlet;ServletRequest;false;getParameterValues;(String);;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getParameter;(String);;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getParameterValues;(String);;ReturnValue;remote",
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// ServletRequestGetParameterMapMethod
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"javax.servlet;ServletRequest;false;getParameterMap;();;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getParameterMap;();;ReturnValue;remote",
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// ServletRequestGetParameterNamesMethod
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"javax.servlet;ServletRequest;false;getParameterNames;();;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getParameterNames;();;ReturnValue;remote",
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// HttpServletRequestGetQueryStringMethod
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"javax.servlet.http;HttpServletRequest;false;getQueryString;();;ReturnValue;remote",
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//
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// URLConnectionGetInputStreamMethod
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"java.net;URLConnection;false;getInputStream;();;ReturnValue;remote",
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// SocketGetInputStreamMethod
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"java.net;Socket;false;getInputStream;();;ReturnValue;remote",
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// BeanValidationSource
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"javax.validation;ConstraintValidator;true;isValid;;;Parameter[0];remote",
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// SpringMultipartRequestSource
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"org.springframework.web.multipart;MultipartRequest;true;getFile;(String);;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartRequest;true;getFileMap;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartRequest;true;getFileNames;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartRequest;true;getFiles;(String);;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartRequest;true;getMultiFileMap;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartRequest;true;getMultipartContentType;(String);;ReturnValue;remote",
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// SpringMultipartFileSource
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"org.springframework.web.multipart;MultipartFile;true;getBytes;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartFile;true;getContentType;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartFile;true;getInputStream;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartFile;true;getName;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartFile;true;getOriginalFilename;();;ReturnValue;remote",
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"org.springframework.web.multipart;MultipartFile;true;getResource;();;ReturnValue;remote",
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// HttpServletRequest.get*
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"javax.servlet.http;HttpServletRequest;false;getHeader;(String);;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getHeaders;(String);;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getHeaderNames;();;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getPathInfo;();;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getRequestURI;();;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getRequestURL;();;ReturnValue;remote",
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"javax.servlet.http;HttpServletRequest;false;getRemoteUser;();;ReturnValue;remote",
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// SpringWebRequestGetMethod
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"org.springframework.web.context.request;WebRequest;false;getDescription;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getHeader;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getHeaderNames;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getHeaderValues;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getParameter;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getParameterMap;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getParameterNames;;;ReturnValue;remote",
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"org.springframework.web.context.request;WebRequest;false;getParameterValues;;;ReturnValue;remote",
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// TODO consider org.springframework.web.context.request.WebRequest.getRemoteUser
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// ServletRequestGetBodyMethod
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"javax.servlet;ServletRequest;false;getInputStream;();;ReturnValue;remote",
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"javax.servlet;ServletRequest;false;getReader;();;ReturnValue;remote",
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// CookieGet*
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"javax.servlet.http;Cookie;false;getValue;();;ReturnValue;remote",
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"javax.servlet.http;Cookie;false;getName;();;ReturnValue;remote",
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"javax.servlet.http;Cookie;false;getComment;();;ReturnValue;remote",
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// ApacheHttp*
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"org.apache.http;HttpMessage;false;getParams;();;ReturnValue;remote",
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"org.apache.http;HttpEntity;false;getContent;();;ReturnValue;remote",
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// In the setting of Android we assume that XML has been transmitted over
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// the network, so may be tainted.
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// XmlPullGetMethod
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"org.xmlpull.v1;XmlPullParser;false;getName;();;ReturnValue;remote",
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"org.xmlpull.v1;XmlPullParser;false;getNamespace;();;ReturnValue;remote",
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"org.xmlpull.v1;XmlPullParser;false;getText;();;ReturnValue;remote",
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// XmlAttrSetGetMethod
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"android.util;AttributeSet;false;getAttributeBooleanValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeCount;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeFloatValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeIntValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeListValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeName;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeNameResource;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeNamespace;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeResourceValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeUnsignedIntValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getAttributeValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getClassAttribute;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getIdAttribute;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getIdAttributeResourceValue;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getPositionDescription;;;ReturnValue;remote",
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"android.util;AttributeSet;false;getStyleAttribute;;;ReturnValue;remote",
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// The current URL in a browser may be untrusted or uncontrolled.
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// WebViewGetUrlMethod
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"android.webkit;WebView;false;getUrl;();;ReturnValue;remote",
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"android.webkit;WebView;false;getOriginalUrl;();;ReturnValue;remote",
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// SpringRestTemplateResponseEntityMethod
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"org.springframework.web.client;RestTemplate;false;exchange;;;ReturnValue;remote",
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"org.springframework.web.client;RestTemplate;false;getForEntity;;;ReturnValue;remote",
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"org.springframework.web.client;RestTemplate;false;postForEntity;;;ReturnValue;remote",
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// WebSocketMessageParameterSource
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"java.net.http;WebSocket$Listener;true;onText;(WebSocket,CharSequence,boolean);;Parameter[1];remote",
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// PlayRequestGetMethod
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"play.mvc;Http$RequestHeader;false;queryString;;;ReturnValue;remote",
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"play.mvc;Http$RequestHeader;false;getQueryString;;;ReturnValue;remote",
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"play.mvc;Http$RequestHeader;false;header;;;ReturnValue;remote",
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"play.mvc;Http$RequestHeader;false;getHeader;;;ReturnValue;remote"
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]
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}
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private predicate sinkModelCsv(string row) {
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row =
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[
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// Open URL
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"java.net;URL;false;openConnection;;;Argument[-1];open-url",
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"java.net;URL;false;openStream;;;Argument[-1];open-url",
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"java.net.http;HttpRequest;false;newBuilder;;;Argument[0];open-url",
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"java.net.http;HttpRequest$Builder;false;uri;;;Argument[0];open-url",
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"java.net;URLClassLoader;false;URLClassLoader;(URL[]);;Argument[0];open-url",
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"java.net;URLClassLoader;false;URLClassLoader;(URL[],ClassLoader);;Argument[0];open-url",
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"java.net;URLClassLoader;false;URLClassLoader;(URL[],ClassLoader,URLStreamHandlerFactory);;Argument[0];open-url",
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"java.net;URLClassLoader;false;URLClassLoader;(String,URL[],ClassLoader);;Argument[1];open-url",
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"java.net;URLClassLoader;false;URLClassLoader;(String,URL[],ClassLoader,URLStreamHandlerFactory);;Argument[1];open-url",
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"java.net;URLClassLoader;false;newInstance;;;Argument[0];open-url",
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// Bean validation
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"javax.validation;ConstraintValidatorContext;true;buildConstraintViolationWithTemplate;;;Argument[0];bean-validation",
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// Set hostname
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"javax.net.ssl;HttpsURLConnection;true;setDefaultHostnameVerifier;;;Argument[0];set-hostname-verifier",
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"javax.net.ssl;HttpsURLConnection;true;setHostnameVerifier;;;Argument[0];set-hostname-verifier"
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]
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}
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private predicate summaryModelCsv(string row) {
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row =
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[
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// qualifier to arg
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"java.io;InputStream;true;read;(byte[]);;Argument[-1];Argument[0];taint",
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"java.io;InputStream;true;read;(byte[],int,int);;Argument[-1];Argument[0];taint",
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"java.io;InputStream;true;readNBytes;(byte[],int,int);;Argument[-1];Argument[0];taint",
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"java.io;InputStream;true;transferTo;(OutputStream);;Argument[-1];Argument[0];taint",
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"java.io;ByteArrayOutputStream;false;writeTo;;;Argument[-1];Argument[0];taint",
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"java.io;Reader;true;read;;;Argument[-1];Argument[0];taint",
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// qualifier to return
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"java.io;ByteArrayOutputStream;false;toByteArray;;;Argument[-1];ReturnValue;taint",
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"java.io;ByteArrayOutputStream;false;toString;;;Argument[-1];ReturnValue;taint",
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"java.io;InputStream;true;readAllBytes;;;Argument[-1];ReturnValue;taint",
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"java.io;InputStream;true;readNBytes;(int);;Argument[-1];ReturnValue;taint",
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"java.util;StringTokenizer;false;nextElement;();;Argument[-1];ReturnValue;taint",
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"java.util;StringTokenizer;false;nextToken;;;Argument[-1];ReturnValue;taint",
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"javax.xml.transform.sax;SAXSource;false;getInputSource;;;Argument[-1];ReturnValue;taint",
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"javax.xml.transform.stream;StreamSource;false;getInputStream;;;Argument[-1];ReturnValue;taint",
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"java.nio;ByteBuffer;false;get;;;Argument[-1];ReturnValue;taint",
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"java.net;URI;false;toURL;;;Argument[-1];ReturnValue;taint",
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"java.net;URI;false;toString;;;Argument[-1];ReturnValue;taint",
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"java.net;URI;false;toAsciiString;;;Argument[-1];ReturnValue;taint",
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"java.io;File;true;toURI;;;Argument[-1];ReturnValue;taint",
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"java.io;File;true;toPath;;;Argument[-1];ReturnValue;taint",
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"java.io;File;true;getAbsoluteFile;;;Argument[-1];ReturnValue;taint",
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"java.io;File;true;getCanonicalFile;;;Argument[-1];ReturnValue;taint",
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"java.io;File;true;getAbsolutePath;;;Argument[-1];ReturnValue;taint",
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"java.io;File;true;getCanonicalPath;;;Argument[-1];ReturnValue;taint",
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"java.nio;ByteBuffer;false;array;();;Argument[-1];ReturnValue;taint",
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"java.nio.file;Path;false;toFile;;;Argument[-1];ReturnValue;taint",
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"java.io;BufferedReader;true;readLine;;;Argument[-1];ReturnValue;taint",
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"java.io;Reader;true;read;();;Argument[-1];ReturnValue;taint",
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// arg to return
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"java.nio;ByteBuffer;false;wrap;(byte[]);;Argument[0];ReturnValue;taint",
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"java.util;Base64$Encoder;false;encode;(byte[]);;Argument[0];ReturnValue;taint",
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"java.util;Base64$Encoder;false;encode;(ByteBuffer);;Argument[0];ReturnValue;taint",
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"java.util;Base64$Encoder;false;encodeToString;(byte[]);;Argument[0];ReturnValue;taint",
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|
"java.util;Base64$Encoder;false;wrap;(OutputStream);;Argument[0];ReturnValue;taint",
|
|
"java.util;Base64$Decoder;false;decode;(byte[]);;Argument[0];ReturnValue;taint",
|
|
"java.util;Base64$Decoder;false;decode;(ByteBuffer);;Argument[0];ReturnValue;taint",
|
|
"java.util;Base64$Decoder;false;decode;(String);;Argument[0];ReturnValue;taint",
|
|
"java.util;Base64$Decoder;false;wrap;(InputStream);;Argument[0];ReturnValue;taint",
|
|
"cn.hutool.core.codec;Base64;true;decode;;;Argument[0];ReturnValue;taint",
|
|
"org.apache.shiro.codec;Base64;false;decode;(String);;Argument[0];ReturnValue;taint",
|
|
"org.apache.commons.codec;Encoder;true;encode;(Object);;Argument[0];ReturnValue;taint",
|
|
"org.apache.commons.codec;Decoder;true;decode;(Object);;Argument[0];ReturnValue;taint",
|
|
"org.apache.commons.codec;BinaryEncoder;true;encode;(byte[]);;Argument[0];ReturnValue;taint",
|
|
"org.apache.commons.codec;BinaryDecoder;true;decode;(byte[]);;Argument[0];ReturnValue;taint",
|
|
"org.apache.commons.codec;StringEncoder;true;encode;(String);;Argument[0];ReturnValue;taint",
|
|
"org.apache.commons.codec;StringDecoder;true;decode;(String);;Argument[0];ReturnValue;taint",
|
|
"java.net;URLDecoder;false;decode;;;Argument[0];ReturnValue;taint",
|
|
"java.net;URI;false;create;;;Argument[0];ReturnValue;taint",
|
|
"javax.xml.transform.sax;SAXSource;false;sourceToInputSource;;;Argument[0];ReturnValue;taint",
|
|
// arg to arg
|
|
"java.lang;System;false;arraycopy;;;Argument[0];Argument[2];taint",
|
|
// constructor flow
|
|
"java.io;File;false;File;;;Argument[0];Argument[-1];taint",
|
|
"java.io;File;false;File;;;Argument[1];Argument[-1];taint",
|
|
"java.net;URI;false;URI;(String);;Argument[0];Argument[-1];taint",
|
|
"java.net;URL;false;URL;(String);;Argument[0];Argument[-1];taint",
|
|
"javax.xml.transform.stream;StreamSource;false;StreamSource;;;Argument[0];Argument[-1];taint",
|
|
"javax.xml.transform.sax;SAXSource;false;SAXSource;(InputSource);;Argument[0];Argument[-1];taint",
|
|
"javax.xml.transform.sax;SAXSource;false;SAXSource;(XMLReader,InputSource);;Argument[1];Argument[-1];taint",
|
|
"org.xml.sax;InputSource;false;InputSource;;;Argument[0];Argument[-1];taint",
|
|
"javax.servlet.http;Cookie;false;Cookie;;;Argument[0];Argument[-1];taint",
|
|
"javax.servlet.http;Cookie;false;Cookie;;;Argument[1];Argument[-1];taint",
|
|
"java.util.zip;ZipInputStream;false;ZipInputStream;;;Argument[0];Argument[-1];taint",
|
|
"java.util.zip;GZIPInputStream;false;GZIPInputStream;;;Argument[0];Argument[-1];taint",
|
|
"java.util;StringTokenizer;false;StringTokenizer;;;Argument[0];Argument[-1];taint",
|
|
"java.beans;XMLDecoder;false;XMLDecoder;;;Argument[0];Argument[-1];taint",
|
|
"com.esotericsoftware.kryo.io;Input;false;Input;;;Argument[0];Argument[-1];taint",
|
|
"com.esotericsoftware.kryo5.io;Input;false;Input;;;Argument[0];Argument[-1];taint",
|
|
"java.io;BufferedInputStream;false;BufferedInputStream;;;Argument[0];Argument[-1];taint",
|
|
"java.io;DataInputStream;false;DataInputStream;;;Argument[0];Argument[-1];taint",
|
|
"java.io;ByteArrayInputStream;false;ByteArrayInputStream;;;Argument[0];Argument[-1];taint",
|
|
"java.io;ObjectInputStream;false;ObjectInputStream;;;Argument[0];Argument[-1];taint",
|
|
"java.io;StringReader;false;StringReader;;;Argument[0];Argument[-1];taint",
|
|
"java.io;CharArrayReader;false;CharArrayReader;;;Argument[0];Argument[-1];taint",
|
|
"java.io;BufferedReader;false;BufferedReader;;;Argument[0];Argument[-1];taint",
|
|
"java.io;InputStreamReader;false;InputStreamReader;;;Argument[0];Argument[-1];taint",
|
|
"java.io;OutputStream;true;write;(byte[]);;Argument[0];Argument[-1];taint",
|
|
"java.io;OutputStream;true;write;(byte[],int,int);;Argument[0];Argument[-1];taint",
|
|
"java.io;OutputStream;true;write;(int);;Argument[0];Argument[-1];taint",
|
|
"java.io;FilterOutputStream;true;FilterOutputStream;(OutputStream);;Argument[0];Argument[-1];taint"
|
|
]
|
|
}
|
|
|
|
/**
|
|
* A unit class for adding additional source model rows.
|
|
*
|
|
* Extend this class to add additional source definitions.
|
|
*/
|
|
class SourceModelCsv extends Unit {
|
|
/** Holds if `row` specifies a source definition. */
|
|
abstract predicate row(string row);
|
|
}
|
|
|
|
/**
|
|
* A unit class for adding additional sink model rows.
|
|
*
|
|
* Extend this class to add additional sink definitions.
|
|
*/
|
|
class SinkModelCsv extends Unit {
|
|
/** Holds if `row` specifies a sink definition. */
|
|
abstract predicate row(string row);
|
|
}
|
|
|
|
/**
|
|
* A unit class for adding additional summary model rows.
|
|
*
|
|
* Extend this class to add additional flow summary definitions.
|
|
*/
|
|
class SummaryModelCsv extends Unit {
|
|
/** Holds if `row` specifies a summary definition. */
|
|
abstract predicate row(string row);
|
|
}
|
|
|
|
private predicate sourceModel(string row) {
|
|
sourceModelCsv(row) or
|
|
any(SourceModelCsv s).row(row)
|
|
}
|
|
|
|
private predicate sinkModel(string row) {
|
|
sinkModelCsv(row) or
|
|
any(SinkModelCsv s).row(row)
|
|
}
|
|
|
|
private predicate summaryModel(string row) {
|
|
summaryModelCsv(row) or
|
|
any(SummaryModelCsv s).row(row)
|
|
}
|
|
|
|
bindingset[input]
|
|
private predicate getKind(string input, string kind, boolean generated) {
|
|
input.splitAt(":", 0) = "generated" and kind = input.splitAt(":", 1) and generated = true
|
|
or
|
|
not input.matches("%:%") and kind = input and generated = false
|
|
}
|
|
|
|
/** Holds if a source model exists for the given parameters. */
|
|
predicate sourceModel(
|
|
string namespace, string type, boolean subtypes, string name, string signature, string ext,
|
|
string output, string kind, boolean generated
|
|
) {
|
|
exists(string row |
|
|
sourceModel(row) and
|
|
row.splitAt(";", 0) = namespace and
|
|
row.splitAt(";", 1) = type and
|
|
row.splitAt(";", 2) = subtypes.toString() and
|
|
subtypes = [true, false] and
|
|
row.splitAt(";", 3) = name and
|
|
row.splitAt(";", 4) = signature and
|
|
row.splitAt(";", 5) = ext and
|
|
row.splitAt(";", 6) = output and
|
|
exists(string k | row.splitAt(";", 7) = k and getKind(k, kind, generated))
|
|
)
|
|
}
|
|
|
|
/** Holds if a sink model exists for the given parameters. */
|
|
predicate sinkModel(
|
|
string namespace, string type, boolean subtypes, string name, string signature, string ext,
|
|
string input, string kind, boolean generated
|
|
) {
|
|
exists(string row |
|
|
sinkModel(row) and
|
|
row.splitAt(";", 0) = namespace and
|
|
row.splitAt(";", 1) = type and
|
|
row.splitAt(";", 2) = subtypes.toString() and
|
|
subtypes = [true, false] and
|
|
row.splitAt(";", 3) = name and
|
|
row.splitAt(";", 4) = signature and
|
|
row.splitAt(";", 5) = ext and
|
|
row.splitAt(";", 6) = input and
|
|
exists(string k | row.splitAt(";", 7) = k and getKind(k, kind, generated))
|
|
)
|
|
}
|
|
|
|
/** Holds if a summary model exists for the given parameters. */
|
|
predicate summaryModel(
|
|
string namespace, string type, boolean subtypes, string name, string signature, string ext,
|
|
string input, string output, string kind, boolean generated
|
|
) {
|
|
summaryModel(namespace, type, subtypes, name, signature, ext, input, output, kind, generated, _)
|
|
}
|
|
|
|
/** Holds if a summary model `row` exists for the given parameters. */
|
|
predicate summaryModel(
|
|
string namespace, string type, boolean subtypes, string name, string signature, string ext,
|
|
string input, string output, string kind, boolean generated, string row
|
|
) {
|
|
summaryModel(row) and
|
|
row.splitAt(";", 0) = namespace and
|
|
row.splitAt(";", 1) = type and
|
|
row.splitAt(";", 2) = subtypes.toString() and
|
|
subtypes = [true, false] and
|
|
row.splitAt(";", 3) = name and
|
|
row.splitAt(";", 4) = signature and
|
|
row.splitAt(";", 5) = ext and
|
|
row.splitAt(";", 6) = input and
|
|
row.splitAt(";", 7) = output and
|
|
exists(string k | row.splitAt(";", 8) = k and getKind(k, kind, generated))
|
|
}
|
|
|
|
private predicate relevantPackage(string package) {
|
|
sourceModel(package, _, _, _, _, _, _, _, _) or
|
|
sinkModel(package, _, _, _, _, _, _, _, _) or
|
|
summaryModel(package, _, _, _, _, _, _, _, _, _, _)
|
|
}
|
|
|
|
private predicate packageLink(string shortpkg, string longpkg) {
|
|
relevantPackage(shortpkg) and
|
|
relevantPackage(longpkg) and
|
|
longpkg.prefix(longpkg.indexOf(".")) = shortpkg
|
|
}
|
|
|
|
private predicate canonicalPackage(string package) {
|
|
relevantPackage(package) and not packageLink(_, package)
|
|
}
|
|
|
|
private predicate canonicalPkgLink(string package, string subpkg) {
|
|
canonicalPackage(package) and
|
|
(subpkg = package or packageLink(package, subpkg))
|
|
}
|
|
|
|
/**
|
|
* Holds if CSV framework coverage of `package` is `n` api endpoints of the
|
|
* kind `(kind, part)`.
|
|
*/
|
|
predicate modelCoverage(string package, int pkgs, string kind, string part, int n) {
|
|
pkgs = strictcount(string subpkg | canonicalPkgLink(package, subpkg)) and
|
|
(
|
|
part = "source" and
|
|
n =
|
|
strictcount(string subpkg, string type, boolean subtypes, string name, string signature,
|
|
string ext, string output, boolean generated |
|
|
canonicalPkgLink(package, subpkg) and
|
|
sourceModel(subpkg, type, subtypes, name, signature, ext, output, kind, generated)
|
|
)
|
|
or
|
|
part = "sink" and
|
|
n =
|
|
strictcount(string subpkg, string type, boolean subtypes, string name, string signature,
|
|
string ext, string input, boolean generated |
|
|
canonicalPkgLink(package, subpkg) and
|
|
sinkModel(subpkg, type, subtypes, name, signature, ext, input, kind, generated)
|
|
)
|
|
or
|
|
part = "summary" and
|
|
n =
|
|
strictcount(string subpkg, string type, boolean subtypes, string name, string signature,
|
|
string ext, string input, string output, boolean generated |
|
|
canonicalPkgLink(package, subpkg) and
|
|
summaryModel(subpkg, type, subtypes, name, signature, ext, input, output, kind, generated)
|
|
)
|
|
)
|
|
}
|
|
|
|
/** Provides a query predicate to check the CSV data for validation errors. */
|
|
module CsvValidation {
|
|
/** Holds if some row in a CSV-based flow model appears to contain typos. */
|
|
query predicate invalidModelRow(string msg) {
|
|
exists(string pred, string namespace, string type, string name, string signature, string ext |
|
|
sourceModel(namespace, type, _, name, signature, ext, _, _, _) and pred = "source"
|
|
or
|
|
sinkModel(namespace, type, _, name, signature, ext, _, _, _) and pred = "sink"
|
|
or
|
|
summaryModel(namespace, type, _, name, signature, ext, _, _, _, _) and pred = "summary"
|
|
|
|
|
not namespace.regexpMatch("[a-zA-Z0-9_\\.]+") and
|
|
msg = "Dubious namespace \"" + namespace + "\" in " + pred + " model."
|
|
or
|
|
not type.regexpMatch("[a-zA-Z0-9_\\$<>]+") and
|
|
msg = "Dubious type \"" + type + "\" in " + pred + " model."
|
|
or
|
|
not name.regexpMatch("[a-zA-Z0-9_]*") and
|
|
msg = "Dubious name \"" + name + "\" in " + pred + " model."
|
|
or
|
|
not signature.regexpMatch("|\\([a-zA-Z0-9_\\.\\$<>,\\[\\]]*\\)") and
|
|
msg = "Dubious signature \"" + signature + "\" in " + pred + " model."
|
|
or
|
|
not ext.regexpMatch("|Annotated") and
|
|
msg = "Unrecognized extra API graph element \"" + ext + "\" in " + pred + " model."
|
|
)
|
|
or
|
|
exists(string pred, string input, string part |
|
|
sinkModel(_, _, _, _, _, _, input, _, _) and pred = "sink"
|
|
or
|
|
summaryModel(_, _, _, _, _, _, input, _, _, _) and pred = "summary"
|
|
|
|
|
(
|
|
invalidSpecComponent(input, part) and
|
|
not part = "" and
|
|
not (part = "Argument" and pred = "sink") and
|
|
not parseArg(part, _)
|
|
or
|
|
part = input.(AccessPath).getToken(0) and
|
|
parseParam(part, _)
|
|
) and
|
|
msg = "Unrecognized input specification \"" + part + "\" in " + pred + " model."
|
|
)
|
|
or
|
|
exists(string pred, string output, string part |
|
|
sourceModel(_, _, _, _, _, _, output, _, _) and pred = "source"
|
|
or
|
|
summaryModel(_, _, _, _, _, _, _, output, _, _) and pred = "summary"
|
|
|
|
|
invalidSpecComponent(output, part) and
|
|
not part = "" and
|
|
not (part = ["Argument", "Parameter"] and pred = "source") and
|
|
msg = "Unrecognized output specification \"" + part + "\" in " + pred + " model."
|
|
)
|
|
or
|
|
exists(string pred, string row, int expect |
|
|
sourceModel(row) and expect = 8 and pred = "source"
|
|
or
|
|
sinkModel(row) and expect = 8 and pred = "sink"
|
|
or
|
|
summaryModel(row) and expect = 9 and pred = "summary"
|
|
|
|
|
exists(int cols |
|
|
cols = 1 + max(int n | exists(row.splitAt(";", n))) and
|
|
cols != expect and
|
|
msg =
|
|
"Wrong number of columns in " + pred + " model row, expected " + expect + ", got " + cols +
|
|
"."
|
|
)
|
|
or
|
|
exists(string b |
|
|
b = row.splitAt(";", 2) and
|
|
not b = ["true", "false"] and
|
|
msg = "Invalid boolean \"" + b + "\" in " + pred + " model."
|
|
)
|
|
)
|
|
or
|
|
exists(string row, string k, string kind | summaryModel(row) |
|
|
k = row.splitAt(";", 8) and
|
|
getKind(k, kind, _) and
|
|
not kind = ["taint", "value"] and
|
|
msg = "Invalid kind \"" + kind + "\" in summary model."
|
|
)
|
|
}
|
|
}
|
|
|
|
pragma[nomagic]
|
|
private predicate elementSpec(
|
|
string namespace, string type, boolean subtypes, string name, string signature, string ext
|
|
) {
|
|
sourceModel(namespace, type, subtypes, name, signature, ext, _, _, _) or
|
|
sinkModel(namespace, type, subtypes, name, signature, ext, _, _, _) or
|
|
summaryModel(namespace, type, subtypes, name, signature, ext, _, _, _, _)
|
|
}
|
|
|
|
private string paramsStringPart(Callable c, int i) {
|
|
i = -1 and result = "("
|
|
or
|
|
exists(int n, string p | c.getParameterType(n).getErasure().toString() = p |
|
|
i = 2 * n and result = p
|
|
or
|
|
i = 2 * n - 1 and result = "," and n != 0
|
|
)
|
|
or
|
|
i = 2 * c.getNumberOfParameters() and result = ")"
|
|
}
|
|
|
|
/**
|
|
* Gets a parenthesized string containing all parameter types of this callable, separated by a comma.
|
|
*
|
|
* Returns the empty string if the callable has no parameters.
|
|
* Parameter types are represented by their type erasure.
|
|
*/
|
|
cached
|
|
string paramsString(Callable c) { result = concat(int i | | paramsStringPart(c, i) order by i) }
|
|
|
|
private Element interpretElement0(
|
|
string namespace, string type, boolean subtypes, string name, string signature
|
|
) {
|
|
elementSpec(namespace, type, subtypes, name, signature, _) and
|
|
exists(RefType t | t.hasQualifiedName(namespace, type) |
|
|
exists(Member m |
|
|
(
|
|
result = m
|
|
or
|
|
subtypes = true and result.(SrcMethod).overridesOrInstantiates+(m)
|
|
) and
|
|
m.getDeclaringType() = t and
|
|
m.hasName(name)
|
|
|
|
|
signature = "" or
|
|
m.(Callable).getSignature() = any(string nameprefix) + signature or
|
|
paramsString(m) = signature
|
|
)
|
|
or
|
|
(if subtypes = true then result.(SrcRefType).getASourceSupertype*() = t else result = t) and
|
|
name = "" and
|
|
signature = ""
|
|
)
|
|
}
|
|
|
|
/** Gets the source/sink/summary element corresponding to the supplied parameters. */
|
|
Element interpretElement(
|
|
string namespace, string type, boolean subtypes, string name, string signature, string ext
|
|
) {
|
|
elementSpec(namespace, type, subtypes, name, signature, ext) and
|
|
exists(Element e | e = interpretElement0(namespace, type, subtypes, name, signature) |
|
|
ext = "" and result = e
|
|
or
|
|
ext = "Annotated" and result.(Annotatable).getAnAnnotation().getType() = e
|
|
)
|
|
}
|
|
|
|
private predicate parseField(AccessPathToken c, FieldContent f) {
|
|
exists(
|
|
string fieldRegex, string qualifiedName, string package, string className, string fieldName
|
|
|
|
|
c.getName() = "Field" and
|
|
qualifiedName = c.getAnArgument() and
|
|
fieldRegex = "^(.*)\\.([^.]+)\\.([^.]+)$" and
|
|
package = qualifiedName.regexpCapture(fieldRegex, 1) and
|
|
className = qualifiedName.regexpCapture(fieldRegex, 2) and
|
|
fieldName = qualifiedName.regexpCapture(fieldRegex, 3) and
|
|
f.getField().hasQualifiedName(package, className, fieldName)
|
|
)
|
|
}
|
|
|
|
/** A string representing a synthetic instance field. */
|
|
class SyntheticField extends string {
|
|
SyntheticField() { parseSynthField(_, this) }
|
|
|
|
/**
|
|
* Gets the type of this field. The default type is `Object`, but this can be
|
|
* overridden.
|
|
*/
|
|
Type getType() { result instanceof TypeObject }
|
|
}
|
|
|
|
private predicate parseSynthField(AccessPathToken c, string f) {
|
|
c.getName() = "SyntheticField" and
|
|
f = c.getAnArgument()
|
|
}
|
|
|
|
/** Holds if the specification component parses as a `Content`. */
|
|
predicate parseContent(AccessPathToken component, Content content) {
|
|
parseField(component, content)
|
|
or
|
|
parseSynthField(component, content.(SyntheticFieldContent).getField())
|
|
or
|
|
component = "ArrayElement" and content instanceof ArrayContent
|
|
or
|
|
component = "Element" and content instanceof CollectionContent
|
|
or
|
|
component = "MapKey" and content instanceof MapKeyContent
|
|
or
|
|
component = "MapValue" and content instanceof MapValueContent
|
|
}
|
|
|
|
cached
|
|
private module Cached {
|
|
/**
|
|
* Holds if `node` is specified as a source with the given kind in a CSV flow
|
|
* model.
|
|
*/
|
|
cached
|
|
predicate sourceNode(Node node, string kind) {
|
|
exists(InterpretNode n | isSourceNode(n, kind) and n.asNode() = node)
|
|
}
|
|
|
|
/**
|
|
* Holds if `node` is specified as a sink with the given kind in a CSV flow
|
|
* model.
|
|
*/
|
|
cached
|
|
predicate sinkNode(Node node, string kind) {
|
|
exists(InterpretNode n | isSinkNode(n, kind) and n.asNode() = node)
|
|
}
|
|
}
|
|
|
|
import Cached
|