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Ruby: configsig rb/regex/badly-anchored-regexp

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This commit is contained in:
Alex Ford
2023-09-03 16:05:56 +01:00
parent 77f3a70376
commit 04d3d04317
2 changed files with 19 additions and 5 deletions
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18
ruby/ql/lib/codeql/ruby/security/regexp/MissingFullAnchorQuery.qll
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@@ -3,7 +3,7 @@
* missing full-anchored regular expressions.
*
* Note, for performance reasons: only import this file if
* `MissingFullAnchor::Configuration` is needed, otherwise
* `MissingFullAnchorFlow` is needed, otherwise
* `MissingFullAnchorCustomizations` should be imported instead.
*/
@@ -14,8 +14,9 @@ import MissingFullAnchorCustomizations::MissingFullAnchor
/**
* A taint tracking configuration for reasoning about
* missing full-anchored regular expressions.
* DEPRECATED: Use `MissingFullAnchorFlow`
*/
class Configuration extends TaintTracking::Configuration {
deprecated class Configuration extends TaintTracking::Configuration {
Configuration() { this = "MissingFullAnchor" }
override predicate isSource(DataFlow::Node source) { source instanceof Source }
@@ -24,3 +25,16 @@ class Configuration extends TaintTracking::Configuration {
override predicate isSanitizer(DataFlow::Node node) { node instanceof Sanitizer }
}
private module MissingFullAnchorConfig 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 }
}
/**
* Taint-tracking for reasoning about missing full-anchored regular expressions.
*/
module MissingFullAnchorFlow = TaintTracking::Global<MissingFullAnchorConfig>;