Rasmus Wriedt Larsen
b3efa28277
Merge branch 'main' into python-command-execution-modeling
2020-09-30 10:24:11 +02:00
Rasmus Wriedt Larsen
fee279f952
Python: Hotfix performance problem with flask methods
...
This improves runtime for command injection query on
https://lgtm.com/projects/g/alibaba/funcraft from +200 seconds (I did not care
to wait more) down to ~55 seconds on my machine.
This type of tracking predicate with string as additional argument apparently
causes trouble :|
2020-09-29 11:00:57 +02:00
Rasmus Wriedt Larsen
6cb2ca63a6
Python: tests to show modeling is very syntactical
2020-09-28 11:23:06 +02:00
Rasmus Wriedt Larsen
3af5c720cc
Python: Add test of more indirect command injection sinks
2020-09-28 11:16:52 +02:00
Rasmus Wriedt Larsen
f7f6564189
Python: Model subprocess.Popen (and helpers)
2020-09-28 11:13:04 +02:00
Rasmus Wriedt Larsen
62dc0dd263
Python: Model os.exec* os.spawn* and os.posix_spawn*
...
I also had to exclude the inline expectation tests from files outside the test
repo.
2020-09-28 11:05:33 +02:00
Rasmus Wriedt Larsen
c440fd0c09
Python: Adjust expectations for system command executions
...
I mostly did this to show my reviewers that the tests actually run and do
something ;)
2020-09-28 11:05:33 +02:00
Rasmus Wriedt Larsen
060720aae7
Python: Add tests for all SystemCommandExecution from stdlib
...
Overall idea is that `test/experimental/meta/ConceptsTest.qll` will set up
inline expectation tests for all the classes defined in `Concepts.qll`, so any
time you model a new instance of Concepts, you simply just import that
file. That makes the tests a little verbose, but allows us to share test-setup
between all the different frameworks we model.
Note that since the definitions of SystemCommandExecution subclasses are
scattered across multieple framework modeling qll files, it think it makes the
most sense to have the tests for each framework in one location.
I'm not 100% convinced about if this is the right choice or not (especially when
we want to write tests for sanitizers), but for now I'm going to try it out at
least.
2020-09-28 11:05:32 +02:00
Rasmus Wriedt Larsen
2acfd4cdb1
Python: Show we're able to handle example with __init__.py files
2020-09-25 18:28:31 +02:00
Taus
fc84286b56
Merge pull request #3830 from yoff/SharedDataflow_FieldFlow
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Python: Shared dataflow: Field flow
2020-09-25 14:53:57 +02:00
Rasmus Lerchedahl Petersen
4621e6d8c0
Python: fix QL format
2020-09-25 13:37:39 +02:00
Rasmus Lerchedahl Petersen
88bba46698
Python: Modify tests based on review
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The extra hist in `test.py` seen in `globalStep.expected`
are due to the removal of manual filtering code.
(That code was from when dataflow had many strange things in it.)
2020-09-25 13:35:30 +02:00
yoff
c56ff986d4
Apply suggestions from code review
...
Co-authored-by: Taus <tausbn@github.com >
2020-09-25 11:56:50 +02:00
Rasmus Wriedt Larsen
85607fe2d5
Python: Adjust location for .expected output
2020-09-25 11:56:45 +02:00
Rasmus Wriedt Larsen
3d5511221e
Python: Add test for implicit __init__.py files
2020-09-25 11:48:38 +02:00
Rasmus Wriedt Larsen
120a569c6f
Python: Explain how CallGraph test.py even works
...
Also remove options file, since it did nothing at all (and blocked
experimental/library-tests/options from taking effect)
2020-09-25 11:42:59 +02:00
CodeQL CI
4deb43f361
Merge pull request #4323 from RasmusWL/python-new-command-injection-query
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Approved by tausbn
2020-09-25 02:39:46 -07:00
Rasmus Wriedt Larsen
66815c9d3d
Python: Suppress unused variable warnings in DataFlowPrivate
2020-09-23 14:33:10 +02:00
Rasmus Wriedt Larsen
6aec2ec673
Python: Fix os.popen modeling
...
Co-authored-by: yoff <lerchedahl@gmail.com >
2020-09-23 11:18:32 +02:00
Rasmus Wriedt Larsen
624cdd339a
Python: Fix grammar
...
Co-authored-by: yoff <lerchedahl@gmail.com >
2020-09-23 11:18:12 +02:00
Rasmus Lerchedahl Petersen
ef4461ce54
Python: Address review comments
2020-09-22 23:48:28 +02:00
yoff
aece0ff652
Apply suggestions from code review
...
Co-authored-by: Taus <tausbn@github.com >
2020-09-22 22:33:46 +02:00
Rasmus Wriedt Larsen
71a75ce596
Python: Handle bound methods in flask modeling
2020-09-22 16:33:35 +02:00
Rasmus Wriedt Larsen
5709189c2a
Python: Expand flask test
2020-09-22 16:33:34 +02:00
Rasmus Wriedt Larsen
e614365963
Python: Adopt new approach in flask modeling
...
Removed all the dict-like stuff, not sure that is how we should do things.
2020-09-22 16:33:33 +02:00
Rasmus Wriedt Larsen
a82fa04d8a
Python: Add worked example of taint step modeling of external libs
...
This can't be seen on the example, but I went through quite a lot of iterations
before arriving at this fairly simple solution.
2020-09-22 16:28:26 +02:00
Rasmus Wriedt Larsen
00ea0cebc3
Python: More Flask modeling kinda works
...
It "kinda" works now, but it really is not a pretty solution. Adding all these
"tracked" objects is SUPER annoying... it _would_ be possible to skip them, but
that seems like it will give the wrong edges for dataflow/taintflow queries :|
A good chunk of it should be able to be removed with access-paths like C# does
for library modeling. Some of it could be solved by better type-tracking API
like API Graphs... but it seems like we generally are just lacking the
nice-to-have features like `.getAMemberCall` and the like. See
https://github.com/github/codeql/pull/4082/files#diff-9aa94c4d713ef9d8da73918ff53db774L33
2020-09-22 16:28:25 +02:00
Rasmus Wriedt Larsen
3c08590ee4
Python: Expand flask tests a bit
2020-09-22 16:28:24 +02:00
Rasmus Wriedt Larsen
2bdd0284dc
Python: Port py-command-line-injection with new dataflow
2020-09-22 16:28:23 +02:00
Rasmus Wriedt Larsen
7c205dd3fc
Python: First attempt at modeling Flask
2020-09-22 16:28:21 +02:00
Rasmus Wriedt Larsen
cdc5ca7aec
Python: Model os.system and os.popen
2020-09-22 16:28:20 +02:00
Rasmus Wriedt Larsen
0265f26301
Python: Add importModule and importMember DataFlow helpers
2020-09-22 16:28:19 +02:00
Rasmus Wriedt Larsen
2551173156
Python: Update example in QLDoc for TypeTracker
2020-09-22 16:28:18 +02:00
Rasmus Lerchedahl Petersen
131cf8d2ec
Python: Fix compilation error
2020-09-22 15:02:31 +02:00
Rasmus Lerchedahl Petersen
b065d8724e
Python: Fixup comments after merge
2020-09-22 13:52:30 +02:00
Rasmus Lerchedahl Petersen
3e2331c87f
Merge branch 'main' of github.com:github/codeql into SharedDataflow_FieldFlow
2020-09-22 13:32:36 +02:00
Tom Hvitved
71da9045e5
Java/Python: Reduce size of blockPrecedesVar
2020-09-22 11:00:26 +02:00
Rasmus Lerchedahl Petersen
08b51e67c4
Python: Update test annotation
2020-09-21 17:44:36 +02:00
Rasmus Lerchedahl Petersen
73d2d9b1f8
Python: Make constructor calls post-update nodes
2020-09-21 17:32:22 +02:00
Taus
724baaf26a
Merge pull request #4308 from RasmusWL/python-private-import-of-DataFlowPrivate
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Python: Make import of DataFlowPrivate private
2020-09-21 17:13:48 +02:00
Rasmus Wriedt Larsen
2f9f51dbd8
Python: Fix tests that use DataFlowPrivate
2020-09-21 16:08:17 +02:00
Rasmus Wriedt Larsen
6aca82fa82
Python: Make import of DataFlowPrivate private
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Otherwise you are able to use `DataFlow::isExpressionNode` where
`isExpressionNode` is defined in `DataFlowPrivate.qll`.
2020-09-21 13:52:58 +02:00
Taus
9d7a2d2b5d
Merge branch 'main' into python-add-global-flow-steps
2020-09-21 13:50:20 +02:00
Taus Brock-Nannestad
1d6558b4e8
Python: Add a bit more documentation to ModuleVariableNode
2020-09-21 11:46:18 +02:00
Rasmus Lerchedahl Petersen
9aa0cfb35c
Python: class callable -> class call
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Only have one type of callable, but have an extra type of call.
A constructor call directs to an init callable
(should also handle `call` overrides at some point).
2020-09-19 22:27:11 +02:00
Rasmus Lerchedahl Petersen
b2f1c435a8
Python: update test expectations
2020-09-19 22:27:11 +02:00
Rasmus Lerchedahl Petersen
e132361736
Python: Add missing .expected file
2020-09-19 22:27:11 +02:00
Rasmus Lerchedahl Petersen
e50b66554d
Python: Add explorative test
2020-09-19 22:27:10 +02:00
Rasmus Lerchedahl Petersen
aa28167177
Python: Add malloc nodes
2020-09-19 22:27:10 +02:00
Rasmus Lerchedahl Petersen
27b25565ca
Python: Implement field-stores, -reads, and -content
2020-09-19 22:27:10 +02:00