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Ruby: configsig rb/url-redirection

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This commit is contained in:
Alex Ford
2023-09-03 15:55:43 +01:00
parent f79796a644
commit 42cd58695d
3 changed files with 28 additions and 8 deletions
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25
ruby/ql/lib/codeql/ruby/security/UrlRedirectQuery.qll
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@@ -1,8 +1,9 @@
/**
* Provides a taint-tracking configuration for detecting "URL redirection" vulnerabilities.
*
* Note, for performance reasons: only import this file if `Configuration` is needed,
* otherwise `UrlRedirectCustomizations` should be imported instead.
* Note, for performance reasons: only import this file if
* `UrlRedirectConfig` is needed, otherwise
* `UrlRedirectCustomizations` should be imported instead.
*/
private import codeql.ruby.AST
@@ -13,8 +14,9 @@ import UrlRedirectCustomizations::UrlRedirect
/**
* A taint-tracking configuration for detecting "URL redirection" vulnerabilities.
* DEPRECATED: Use `UrlRedirectFlow`
*/
class Configuration extends TaintTracking::Configuration {
deprecated class Configuration extends TaintTracking::Configuration {
Configuration() { this = "UrlRedirect" }
override predicate isSource(DataFlow::Node source) { source instanceof Source }
@@ -31,3 +33,20 @@ class Configuration extends TaintTracking::Configuration {
UrlRedirect::isAdditionalTaintStep(node1, node2)
}
}
private module UrlRedirectConfig implements DataFlow::ConfigSig {
predicate isSource(DataFlow::Node source) { source instanceof Source }
predicate isSink(DataFlow::Node sink) { sink instanceof Sink }
predicate isBarrier(DataFlow::Node node) { node instanceof Sanitizer }
predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
UrlRedirect::isAdditionalTaintStep(node1, node2)
}
}
/**
* Taint-tracking for detecting "URL redirection" vulnerabilities.
*/
module UrlRedirectFlow = TaintTracking::Global<UrlRedirectConfig>;