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Expand log injection sanitizers to annotation regex matches

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This commit is contained in:
Owen Mansel-Chan
2026-02-14 08:26:26 +00:00
parent 924bb92d91
commit 9fc95f5171
2 changed files with 15 additions and 8 deletions
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16
java/ql/lib/semmle/code/java/security/LogInjection.qll
View File

@@ -64,11 +64,12 @@ private predicate stringMethodArgumentValueMatches(CompileTimeConstantExpr const
}
/**
* Holds if the return value of `ma` is sanitized against log injection attacks
* by removing line breaks from it.
* Holds if `e` is sanitized against log injection attacks by removing line
* breaks from it.
*/
private predicate logInjectionSanitizer(MethodCall ma) {
exists(CompileTimeConstantExpr target, CompileTimeConstantExpr replacement |
private predicate logInjectionSanitizer(Expr e) {
exists(MethodCall ma, CompileTimeConstantExpr target, CompileTimeConstantExpr replacement |
e = ma and
stringMethodCall(ma, target, replacement) and
not stringMethodArgumentValueMatches(replacement, ["%\n%", "%\r%"])
|
@@ -89,6 +90,13 @@ private predicate logInjectionSanitizer(MethodCall ma) {
target.getStringValue() = ["\n", "\r", "\\n", "\\r", "\\R"]
)
)
or
exists(RegexMatch rm, CompileTimeConstantExpr target |
rm instanceof Annotation and
e = rm.getASanitizedExpr() and
target = rm.getRegex() and
regexPreventsLogInjection(target.getStringValue(), true)
)
}
/**

7
java/ql/test/query-tests/security/CWE-117/LogInjectionTest.expected
View File

@@ -46,8 +46,6 @@
| LogInjectionTest.java:183:26:183:31 | source | LogInjectionTest.java:75:34:75:41 | source(...) : Object | LogInjectionTest.java:183:26:183:31 | source | This log entry depends on a $@. | LogInjectionTest.java:75:34:75:41 | source(...) | user-provided value |
| LogInjectionTest.java:187:26:187:31 | source | LogInjectionTest.java:75:34:75:41 | source(...) : Object | LogInjectionTest.java:187:26:187:31 | source | This log entry depends on a $@. | LogInjectionTest.java:75:34:75:41 | source(...) | user-provided value |
| LogInjectionTest.java:193:26:193:31 | source | LogInjectionTest.java:75:34:75:41 | source(...) : Object | LogInjectionTest.java:193:26:193:31 | source | This log entry depends on a $@. | LogInjectionTest.java:75:34:75:41 | source(...) | user-provided value |
| LogInjectionTest.java:198:22:198:40 | validatedInputField | LogInjectionTest.java:198:22:198:40 | validatedInputField | LogInjectionTest.java:198:22:198:40 | validatedInputField | This log entry depends on a $@. | LogInjectionTest.java:198:22:198:40 | validatedInputField | user-provided value |
| LogInjectionTest.java:199:22:199:37 | validatedInput(...) | LogInjectionTest.java:199:22:199:37 | validatedInput(...) | LogInjectionTest.java:199:22:199:37 | validatedInput(...) | This log entry depends on a $@. | LogInjectionTest.java:199:22:199:37 | validatedInput(...) | user-provided value |
| LogInjectionTest.java:205:39:205:55 | (...)... | LogInjectionTest.java:205:48:205:55 | source(...) : Object | LogInjectionTest.java:205:39:205:55 | (...)... | This log entry depends on a $@. | LogInjectionTest.java:205:48:205:55 | source(...) | user-provided value |
| LogInjectionTest.java:206:28:206:35 | source(...) | LogInjectionTest.java:206:28:206:35 | source(...) | LogInjectionTest.java:206:28:206:35 | source(...) | This log entry depends on a $@. | LogInjectionTest.java:206:28:206:35 | source(...) | user-provided value |
| LogInjectionTest.java:207:28:207:35 | source(...) | LogInjectionTest.java:207:28:207:35 | source(...) | LogInjectionTest.java:207:28:207:35 | source(...) | This log entry depends on a $@. | LogInjectionTest.java:207:28:207:35 | source(...) | user-provided value |
@@ -4517,8 +4515,6 @@ nodes
| LogInjectionTest.java:183:26:183:31 | source | semmle.label | source |
| LogInjectionTest.java:187:26:187:31 | source | semmle.label | source |
| LogInjectionTest.java:193:26:193:31 | source | semmle.label | source |
| LogInjectionTest.java:198:22:198:40 | validatedInputField | semmle.label | validatedInputField |
| LogInjectionTest.java:199:22:199:37 | validatedInput(...) | semmle.label | validatedInput(...) |
| LogInjectionTest.java:205:39:205:55 | (...)... | semmle.label | (...)... |
| LogInjectionTest.java:205:48:205:55 | source(...) : Object | semmle.label | source(...) : Object |
| LogInjectionTest.java:206:28:206:35 | source(...) | semmle.label | source(...) |
@@ -8133,3 +8129,6 @@ nodes
| LogInjectionTest.java:2151:38:2151:54 | (...)... | semmle.label | (...)... |
| LogInjectionTest.java:2151:47:2151:54 | source(...) : Object | semmle.label | source(...) : Object |
subpaths
testFailures
| LogInjectionTest.java:198:44:198:63 | // $ SPURIOUS: Alert | Fixed spurious result: Alert |
| LogInjectionTest.java:199:41:199:60 | // $ SPURIOUS: Alert | Fixed spurious result: Alert |