mirror of
https://github.com/github/codeql.git
synced 2026-01-11 21:50:28 +01:00
39 lines
1.4 KiB
Plaintext
39 lines
1.4 KiB
Plaintext
/**
|
|
* Provides a taint-tracking configuration for detecting "stack trace exposure" vulnerabilities.
|
|
*
|
|
* Note, for performance reasons: only import this file if
|
|
* `StackTraceExposure::Configuration` is needed, otherwise
|
|
* `StackTraceExposureCustomizations` should be imported instead.
|
|
*/
|
|
|
|
private import python
|
|
import semmle.python.dataflow.new.DataFlow
|
|
import semmle.python.dataflow.new.TaintTracking
|
|
import StackTraceExposureCustomizations::StackTraceExposure
|
|
|
|
/**
|
|
* A taint-tracking configuration for detecting "stack trace exposure" vulnerabilities.
|
|
*/
|
|
class Configuration extends TaintTracking::Configuration {
|
|
Configuration() { this = "StackTraceExposure" }
|
|
|
|
override predicate isSource(DataFlow::Node source) { source instanceof Source }
|
|
|
|
override predicate isSink(DataFlow::Node sink) { sink instanceof Sink }
|
|
|
|
override predicate isSanitizer(DataFlow::Node node) { node instanceof Sanitizer }
|
|
|
|
deprecated override predicate isSanitizerGuard(DataFlow::BarrierGuard guard) {
|
|
guard instanceof SanitizerGuard
|
|
}
|
|
|
|
// A stack trace is accessible as the `__traceback__` attribute of a caught exception.
|
|
// see https://docs.python.org/3/reference/datamodel.html#traceback-objects
|
|
override predicate isAdditionalTaintStep(DataFlow::Node nodeFrom, DataFlow::Node nodeTo) {
|
|
exists(DataFlow::AttrRead attr | attr.getAttributeName() = "__traceback__" |
|
|
nodeFrom = attr.getObject() and
|
|
nodeTo = attr
|
|
)
|
|
}
|
|
}
|