Introduce a new Models-as-Data sink sub-kind path-injection[read] for
models that only read from or inspect a path. The general
java/path-injection query and its PathInjectionSanitizer barrier
continue to consider both path-injection and path-injection[read]
sinks, so no alerts are lost. The java/zipslip query deliberately
selects only path-injection sinks, since read-only accesses such as
ClassLoader.getResource or FileInputStream are outside the archive
extraction threat model.
Addresses https://github.com/github/codeql/issues/21606 along the lines
proposed on the issue thread: prefer path-injection[read] over a
[create] sub-kind so that miscategorizing a sink causes a false
positive (easy to spot) rather than a false negative.
- shared/mad/codeql/mad/ModelValidation.qll: allow path-injection[...]
as a valid sink kind.
- java/ql/lib/ext/*.model.yml: relabel the models that PR #12916
migrated from the historical read-file kind (plus the newer
ClassLoader resource-lookup variants that share the same read-only
semantics).
- java/ql/lib/semmle/code/java/security/TaintedPathQuery.qll and
PathSanitizer.qll: select both path-injection and
path-injection[read] sinks/barriers.
- java/ql/lib/semmle/code/java/security/ZipSlipQuery.qll: keep only
path-injection, with a comment explaining why path-injection[read]
is excluded.
- java/ql/test/query-tests/security/CWE-022/semmle/tests/ZipTest.java:
add m7 regression covering the Dubbo-style classpath lookup from
issue #21606 and assert no alert is produced.
- Update TaintedPath.expected for the renamed kinds in the models list.
- Add change-notes under java/ql/lib/change-notes and
java/ql/src/change-notes.
`com.ctc.wstx.stax.WstxInputFactory` overrides `createXMLStreamReader`,
`createXMLEventReader` and `setProperty` from `XMLInputFactory`, so the
existing `XmlInputFactory` model in `XmlParsers.qll` does not match calls
where the static receiver type is `WstxInputFactory` (or its supertype
`org.codehaus.stax2.XMLInputFactory2`). Woodstox is vulnerable to XXE in
its default configuration, so these missed sinks were false negatives in
`java/xxe`.
This adds a scoped framework model under
`semmle/code/java/frameworks/woodstox/WoodstoxXml.qll` (registered in the
`Frameworks` module of `XmlParsers.qll`) that recognises these calls as
XXE sinks and treats the factory as safe when both
`javax.xml.stream.supportDTD` and
`javax.xml.stream.isSupportingExternalEntities` are disabled — mirroring
the existing `XMLInputFactory` safe-configuration logic.
- Clarify that arithmeticUsedInBoundsCheck applies to if-condition
comparisons, not all comparisons
- Update expected test line numbers to reflect added test calls
The java/tainted-arithmetic query now recognizes when an arithmetic
expression appears directly as an operand of a comparison (e.g.,
`if (off + len > array.length)`). Such expressions are bounds checks,
not vulnerable computations, and are excluded via the existing
overflowIrrelevant predicate.
Add test cases for bounds-checking patterns that should not be flagged.
- Model Signature.getInstance() as CryptoAlgoSpec sink (previously only
Signature constructor was modeled)
- Add HMAC-based algorithms (HMACSHA1/256/384/512, HmacSHA1/256/384/512)
and PBKDF2 to the secure algorithm whitelist
- Fix XDH/X25519/X448 tests to use KeyAgreement.getInstance() instead of
KeyPairGenerator.getInstance() to match their key agreement semantics
- Add test cases for SHA384withECDSA, HMACSHA*, and PBKDF2WithHmacSHA1
from user-reported false positives
- Update change note to document all additions
