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Java: Fix capitalization of JxBrowser
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@@ -4,14 +4,14 @@
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<qhelp>
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<overview>
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<p>JXBrowser is a Java library that allows to embed the Chromium browser inside Java applications.
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The version 6.x.x by default ignores any HTTPS certificate errors thereby allowing man-in-the-middle attacks.
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<p>JxBrowser is a Java library that allows to embed the Chromium browser inside Java applications.
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Versions smaller than 6.24 by default ignore any HTTPS certificate errors thereby allowing man-in-the-middle attacks.
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</p>
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</overview>
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<recommendation>
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<p>Do either of these:
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<li>Update to version 7.x.x as it now correctly rejects certificate errors by default.</li>
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<li>Update to version 6.24 or 7.x.x as these correctly reject certificate errors by default.</li>
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<li>Add a custom implementation of the <code>LoadHandler</code> interface whose <code>onCertificateError</code> method always returns <b>true</b> indicating that loading should be cancelled.
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Then use the <code>setLoadHandler</code> method with your custom <code>LoadHandler</code> on every <code>Browser</code> you use.</li>
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</p>
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@@ -20,12 +20,12 @@ Then use the <code>setLoadHandler</code> method with your custom <code>LoadHandl
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<example>
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<p>The following two examples show two ways of using a <code>Browser</code>. In the 'BAD' case,
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all certificate errors are ignored. In the 'GOOD' case, certificate errors are rejected.</p>
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<sample src="JXBrowserWithoutCertValidation.java" />
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<sample src="JxBrowserWithoutCertValidation.java" />
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</example>
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<references>
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<li>Teamdev:
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<a href="https://www.teamdev.com/downloads/jxbrowser/javadoc/com/teamdev/jxbrowser/chromium/LoadHandler.html#onCertificateError-com.teamdev.jxbrowser.chromium.CertificateErrorParams-">
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Javadoc for the LoadHandler#onCertificateError method</a>.</li>
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<a href="https://jxbrowser.support.teamdev.com/support/discussions/topics/9000051708">
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Changelog of JxBrowser 6.24</a>.</li>
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</references>
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</qhelp>
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@@ -1,6 +1,6 @@
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/**
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* @name JXBrowser with disabled certificate validation
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* @description Insecure configuration of JXBrowser disables certificate validation making the app vulnerable to man-in-the-middle attacks.
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* @name JxBrowser with disabled certificate validation
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* @description Insecure configuration of JxBrowser disables certificate validation making the app vulnerable to man-in-the-middle attacks.
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* @kind problem
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* @id java/jxbrowser/disabled-certificate-validation
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* @tags security
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@@ -12,33 +12,33 @@ import semmle.code.java.security.Encryption
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import semmle.code.java.dataflow.TaintTracking
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/*
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* This query is version specific to JXBrowser < 6.24. The version is indirectly detected.
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* This query is version specific to JxBrowser < 6.24. The version is indirectly detected.
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* In version 6.x.x the `Browser` class is in a different package compared to version 7.x.x.
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*/
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/**
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* Holds if a safe JXBrowser 6.x.x version is used, such as version 6.24.
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* Holds if a safe JxBrowser 6.x.x version is used, such as version 6.24.
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* This is detected by the the presence of the `addBoundsListener` in the `Browser` class.
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*/
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private predicate isSafeJXBrowserVersion() {
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exists(Method m | m.getDeclaringType() instanceof JXBrowser | m.hasName("addBoundsListener"))
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private predicate isSafeJxBrowserVersion() {
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exists(Method m | m.getDeclaringType() instanceof JxBrowser | m.hasName("addBoundsListener"))
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}
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/** The `com.teamdev.jxbrowser.chromium.Browser` class. */
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private class JXBrowser extends RefType {
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JXBrowser() { this.hasQualifiedName("com.teamdev.jxbrowser.chromium", "Browser") }
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private class JxBrowser extends RefType {
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JxBrowser() { this.hasQualifiedName("com.teamdev.jxbrowser.chromium", "Browser") }
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}
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/** The `setLoadHandler` method on the `com.teamdev.jxbrowser.chromium.Browser` class. */
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private class JXBrowserSetLoadHandler extends Method {
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JXBrowserSetLoadHandler() {
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this.hasName("setLoadHandler") and this.getDeclaringType() instanceof JXBrowser
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private class JxBrowserSetLoadHandler extends Method {
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JxBrowserSetLoadHandler() {
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this.hasName("setLoadHandler") and this.getDeclaringType() instanceof JxBrowser
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}
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}
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/** The `com.teamdev.jxbrowser.chromium.LoadHandler` interface. */
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private class JXBrowserLoadHandler extends RefType {
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JXBrowserLoadHandler() { this.hasQualifiedName("com.teamdev.jxbrowser.chromium", "LoadHandler") }
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private class JxBrowserLoadHandler extends RefType {
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JxBrowserLoadHandler() { this.hasQualifiedName("com.teamdev.jxbrowser.chromium", "LoadHandler") }
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}
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private predicate isOnCertificateErrorMethodSafe(Method m) {
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@@ -48,35 +48,35 @@ private predicate isOnCertificateErrorMethodSafe(Method m) {
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}
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/** A class that securely implements the `com.teamdev.jxbrowser.chromium.LoadHandler` interface. */
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private class JXBrowserSafeLoadHandler extends RefType {
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JXBrowserSafeLoadHandler() {
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this.getASupertype() instanceof JXBrowserLoadHandler and
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private class JxBrowserSafeLoadHandler extends RefType {
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JxBrowserSafeLoadHandler() {
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this.getASupertype() instanceof JxBrowserLoadHandler and
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exists(Method m | m.hasName("onCertificateError") and m.getDeclaringType() = this |
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isOnCertificateErrorMethodSafe(m)
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)
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}
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}
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private class JXBrowserTaintTracking extends TaintTracking::Configuration {
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JXBrowserTaintTracking() { this = "JXBrowserTaintTracking" }
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private class JxBrowserTaintTracking extends TaintTracking::Configuration {
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JxBrowserTaintTracking() { this = "JxBrowserTaintTracking" }
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override predicate isSource(DataFlow::Node src) {
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exists(ClassInstanceExpr newJXBrowser | newJXBrowser.getConstructedType() instanceof JXBrowser |
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newJXBrowser = src.asExpr()
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exists(ClassInstanceExpr newJxBrowser | newJxBrowser.getConstructedType() instanceof JxBrowser |
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newJxBrowser = src.asExpr()
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)
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}
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override predicate isSink(DataFlow::Node sink) {
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exists(MethodAccess ma | ma.getMethod() instanceof JXBrowserSetLoadHandler |
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ma.getArgument(0).getType() instanceof JXBrowserSafeLoadHandler and
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exists(MethodAccess ma | ma.getMethod() instanceof JxBrowserSetLoadHandler |
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ma.getArgument(0).getType() instanceof JxBrowserSafeLoadHandler and
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ma.getQualifier() = sink.asExpr()
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)
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}
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}
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from JXBrowserTaintTracking cfg, DataFlow::Node src
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from JxBrowserTaintTracking cfg, DataFlow::Node src
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where
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cfg.isSource(src) and
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not cfg.hasFlow(src, _) and
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not isSafeJXBrowserVersion()
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select src, "This JXBrowser instance allows man-in-the-middle attacks."
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not isSafeJxBrowserVersion()
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select src, "This JxBrowser instance allows man-in-the-middle attacks."
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@@ -1 +0,0 @@
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| JXBrowserWithoutCertValidation.java:17:27:17:39 | new Browser(...) | This JXBrowser instance allows man-in-the-middle attacks. |
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@@ -1 +0,0 @@
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experimental/Security/CWE/CWE-295/JXBrowserWithoutCertValidation.ql
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@@ -0,0 +1 @@
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| JxBrowserWithoutCertValidation.java:17:27:17:39 | new Browser(...) | This JxBrowser instance allows man-in-the-middle attacks. |
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@@ -3,7 +3,7 @@ import com.teamdev.jxbrowser.chromium.LoadHandler;
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import com.teamdev.jxbrowser.chromium.LoadParams;
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import com.teamdev.jxbrowser.chromium.CertificateErrorParams;
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public class JXBrowserWithoutCertValidation {
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public class JxBrowserWithoutCertValidation {
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public static void main(String[] args) {
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@@ -0,0 +1 @@
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experimental/Security/CWE/CWE-295/JxBrowserWithoutCertValidation.ql
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