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Decouple XsltInjection.qll to reuse the taint tracking configuration

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This commit is contained in:
Tony Torralba
2021-07-19 13:16:11 +02:00
parent fc58ada92e
commit 6967b06dee
5 changed files with 43 additions and 54 deletions
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22
java/ql/src/Security/CWE/CWE-074/XsltInjection.ql
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@@ -11,29 +11,9 @@
*/
import java
import semmle.code.java.dataflow.FlowSources
import semmle.code.java.security.XsltInjection
import semmle.code.java.security.XsltInjectionQuery
import DataFlow::PathGraph
/**
* A taint-tracking configuration for unvalidated user input that is used in XSLT transformation.
*/
class XsltInjectionFlowConfig extends TaintTracking::Configuration {
XsltInjectionFlowConfig() { this = "XsltInjectionFlowConfig" }
override predicate isSource(DataFlow::Node source) { source instanceof RemoteFlowSource }
override predicate isSink(DataFlow::Node sink) { sink instanceof XsltInjectionSink }
override predicate isSanitizer(DataFlow::Node node) {
node.getType() instanceof PrimitiveType or node.getType() instanceof BoxedType
}
override predicate isAdditionalTaintStep(DataFlow::Node node1, DataFlow::Node node2) {
any(XsltInjectionAdditionalTaintStep c).step(node1, node2)
}
}
from DataFlow::PathNode source, DataFlow::PathNode sink, XsltInjectionFlowConfig conf
where conf.hasFlowPath(source, sink)
select sink.getNode(), source, sink, "XSLT transformation might include stylesheet from $@.",