Commit Graph

7071 Commits

Author SHA1 Message Date
Mathias Vorreiter Pedersen
d209231ff9 C++: Remove cartesian product in 'ExecTainted'. 2022-08-21 16:45:36 +01:00
Mathias Vorreiter Pedersen
c953b05cc2 Merge branch 'main' into fix-joins-in-using-expired-stack-address 2022-08-18 15:13:05 +01:00
Mathias Vorreiter Pedersen
5704995b62 C++: Fix joins in 'cpp/using-expired-stack-address'. 2022-08-18 13:23:39 +01:00
intrigus-lgtm
f978951cbe Explain command substitution 2022-08-17 22:30:43 +02:00
erik-krogh
ffb65d054e delete redundant inline casts 2022-08-17 13:34:22 +02:00
erik-krogh
2e44fba67d add explicit this 2022-08-17 13:33:31 +02:00
erik-krogh
b9823cf335 fix ql/could-be-cast 2022-08-17 13:33:31 +02:00
intrigus-lgtm
45f708bb58 Fix typo. 2022-08-17 00:00:32 +02:00
intrigus
dabccd8686 Add query for tainted wordexp calls. 2022-08-16 23:56:50 +02:00
Robert Marsh
56eacce320 C++: restrict to end-of-allocation pointers 2022-08-16 17:52:06 -04:00
Robert Marsh
93de8e2308 C++: fix missing bounds in exp range analysis 2022-08-16 17:44:51 -04:00
Robert Marsh
0ebd7d0de5 C++: respond to PR comments 2022-08-16 17:44:47 -04:00
Robert Marsh
e4d0e7431c C++: some experimental product flow queries 2022-08-16 17:44:46 -04:00
Jeroen Ketema
243dda79d2 C++: Expose PresentIRFunction and override in cpp/count-ir-inconsistencies
The `toString` implementtion that `PresentIRFunction` uses may result in very
long strings that may crash the evaluator. Overriding allows is to limit the
string size and still suffices when just counting the number of inconsistencies.
2022-08-16 16:30:38 +02:00
Sid Shankar
1e1e2318b7 Merge pull request #10052 from github/task/fix-broken-links
Docs: Replace HTTP broken links to equivalent HTTPS resources
2022-08-16 08:45:08 -04:00
Alex Ford
d02ad51d74 Merge pull request #10032 from github/post-release-prep/codeql-cli-2.10.3
Post-release preparation for codeql-cli-2.10.3
2022-08-16 12:04:07 +01:00
Sid Shankar
69de832f76 Replace invalid link to blogs.msdn.com
Replace with link to the same article on devblogs.microsoft.com. Unfortunately, blogs.msdn.com does not automatically redirect to the new location, making this replacement necessary.
2022-08-15 14:39:26 -04:00
github-actions[bot]
21d0c78376 Post-release preparation for codeql-cli-2.10.3 2022-08-11 23:20:39 +00:00
github-actions[bot]
57c4f9145b Release preparation for version 2.10.3 2022-08-11 11:12:15 +00:00
Erik Krogh Kristensen
73df8e4c7d Merge pull request #9832 from erik-krogh/misspellings
Fix lots of misspellings
2022-08-11 12:43:26 +02:00
Geoffrey White
c62ae3b350 C++: First working. We now prefer flagging the cases where the variable was initialized, as in real world cases we haven't seen it done safely. 2022-08-11 12:27:48 +02:00
Geoffrey White
76ef779f60 C++: Add test and placeholder query. 2022-08-11 12:27:39 +02:00
Jeroen Ketema
c89592cda7 C++: Add internal metrics query for IR consistency 2022-08-11 11:39:52 +02:00
Erik Krogh Kristensen
887f6557ed fix common misspellings throughout github/codeql 2022-08-10 23:21:41 +02:00
Nora Dimitrijević
60f4049388 Re-autoformat StrncpyFlippedArgs.ql 2022-08-10 14:14:42 +02:00
Nora Dimitrijević
05f4f98aa0 Add change note 2022-08-10 13:42:21 +02:00
Nora Dimitrijević
df419003ad Use Strcpy.qll in StrncpyFlippedArgs.ql
As a result, the query gets access to more types of strncpy-like
functions, as demonstrated by test.cpp, which now "fails" (i.e. works) for the new test
cases instroduced
in the previous commit.
2022-08-10 13:42:21 +02:00
Geoffrey White
db8a3107b3 Merge pull request #9089 from ihsinme/ihsinme-patch-87
CPP: Add query for CWE-125 Out-of-bounds Read with different interpretation of the string when use mbtowc
2022-08-09 09:31:32 +01:00
ihsinme
4fdf4b23bd Update DangerousWorksWithMultibyteOrWideCharacters.ql 2022-08-08 18:46:39 +03:00
ihsinme
212b1031b2 Update DangerousWorksWithMultibyteOrWideCharacters.qhelp 2022-08-08 18:42:54 +03:00
ihsinme
7cbf79b144 Rename DangerousUseMbtowc.ql to DangerousWorksWithMultibyteOrWideCharacters.ql 2022-08-08 18:39:41 +03:00
ihsinme
ef04b8f5b3 Rename DangerousUseMbtowc.qhelp to DangerousWorksWithMultibyteOrWideCharacters.qhelp 2022-08-08 18:37:15 +03:00
ihsinme
5ee499389e Rename DangerousUseMbtowc.cpp to DangerousWorksWithMultibyteOrWideCharacters.cpp 2022-08-08 18:36:53 +03:00
ihsinme
02bea35da2 Update DangerousUseMbtowc.qhelp 2022-08-08 18:35:25 +03:00
Alex Ford
33fbec1174 Merge pull request #9917 from github/post-release-prep/codeql-cli-2.10.2
Post-release preparation for codeql-cli-2.10.2
2022-08-03 15:17:00 +01:00
intrigus-lgtm
c59e6586f7 Add additional reference to CERT C coding standard 2022-08-03 14:19:53 +02:00
Rasmus Wriedt Larsen
8fb85a98d8 Merge branch 'main' into post-release-prep/codeql-cli-2.10.2 2022-08-03 10:42:02 +02:00
Alex Ford
8e3548efb3 Merge branch 'main' into post-release-prep/codeql-cli-2.10.2 2022-08-02 20:29:26 +01:00
Mathias Vorreiter Pedersen
5181cc1295 C++: Add a 'allowInterproceduralFlow' predicate to the 'MustFlow' library to and use it instead of checking the enclosing callables after computing the dataflow graph. 2022-08-02 13:43:01 +01:00
Mathias Vorreiter Pedersen
e3cb7cf9fe C++: Remove internal 'microsoft' tags from queries. 2022-08-01 17:30:23 +01:00
ihsinme
96e220588e Update DangerousUseMbtowc.ql 2022-07-31 13:44:50 +03:00
github-actions[bot]
e8747d3176 Post-release preparation for codeql-cli-2.10.2 2022-07-28 20:00:09 +00:00
github-actions[bot]
212786ed91 Release preparation for version 2.10.2 2022-07-28 13:38:35 +00:00
Jeroen Ketema
ad8335d6f3 C++: Fix join-order problem in cpp/return-stack-allocated-memory
Before on Abseil:
```
Evaluated relational algebra for predicate #select#cpe#12356#fffff@3ffb21o1 with tuple counts:
         1235939  ~0%    {2} r1 = SCAN functions OUTPUT In.0, In.0
         1235939  ~0%    {2} r2 = JOIN r1 WITH functions ON FIRST 1 OUTPUT Lhs.1, Lhs.0
        33500841  ~0%    {2} r3 = JOIN r2 WITH DataFlowUtil::Node::getEnclosingCallable#dispred#f0820431#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1
          280683  ~3%    {3} r4 = JOIN r3 WITH MustFlow::MkLocalPathNode#0227f5a1#fff ON FIRST 1 OUTPUT Rhs.2, Lhs.1, Lhs.0
           40970  ~2%    {4} r5 = JOIN r4 WITH MustFlow::MustFlowConfiguration::hasFlowPath#dispred#f0820431#fff#cpe#23_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.0
           40970  ~0%    {5} r6 = JOIN r5 WITH MustFlow::MkLocalPathNode#0227f5a1#fff_20#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Lhs.0
           40970  ~1%    {5} r7 = JOIN r6 WITH DataFlowUtil::Cached::TInstructionNode#47741e1f#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Lhs.4
           40970  ~1%    {5} r8 = JOIN r7 WITH project#Instruction::VariableAddressInstruction#class#577b6a83#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3, Lhs.4
           40970  ~0%    {6} r9 = JOIN r8 WITH SSAConstruction::Cached::getInstructionAst#2b11997e#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3, Lhs.4, Rhs.1
           40970  ~2%    {7} r10 = JOIN r9 WITH SSAConstruction::Cached::getInstructionAst#2b11997e#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3, Lhs.4, Lhs.5, Rhs.1
               0  ~0%    {6} r11 = JOIN r10 WITH Instruction::Instruction::getEnclosingFunction#dispred#f0820431#3#ff ON FIRST 2 OUTPUT Rhs.1, Lhs.2, Lhs.3, Lhs.4, Lhs.5, Lhs.6
               0  ~0%    {5} r12 = JOIN r11 WITH functions ON FIRST 1 OUTPUT Lhs.5, Lhs.1, Lhs.2, Lhs.3, Lhs.4
               0  ~0%    {5} r13 = JOIN r12 WITH Element::ElementBase::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.1, Lhs.3, Lhs.2, Lhs.4, Rhs.1
                         return r13
```

After:
```
Evaluated relational algebra for predicate #select#cpe#12356#fffff@1dbc97kv with tuple counts:
        40970  ~0%    {2} r1 = SCAN MustFlow::MustFlowConfiguration::hasFlowPath#dispred#f0820431#fff#cpe#23 OUTPUT In.1, In.0
        40970  ~0%    {3} r2 = JOIN r1 WITH MustFlow::MkLocalPathNode#0227f5a1#fff_20#join_rhs ON FIRST 1 OUTPUT Lhs.1, Lhs.0, Rhs.1
        40970  ~7%    {4} r3 = JOIN r2 WITH MustFlow::MkLocalPathNode#0227f5a1#fff_20#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.0, Lhs.1, Lhs.2
        40970  ~2%    {4} r4 = JOIN r3 WITH DataFlowUtil::Cached::TInstructionNode#47741e1f#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3
        40970  ~2%    {4} r5 = JOIN r4 WITH project#Instruction::VariableAddressInstruction#class#577b6a83#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3
        40970  ~0%    {5} r6 = JOIN r5 WITH SSAConstruction::Cached::getInstructionAst#2b11997e#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3, Rhs.1
        40970  ~1%    {6} r7 = JOIN r6 WITH SSAConstruction::Cached::getInstructionAst#2b11997e#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3, Lhs.4, Rhs.1
        40970  ~0%    {6} r8 = JOIN r7 WITH Instruction::Instruction::getEnclosingFunction#dispred#f0820431#3#ff ON FIRST 1 OUTPUT Lhs.3, Rhs.1, Lhs.1, Lhs.2, Lhs.4, Lhs.5
            0  ~0%    {5} r9 = JOIN r8 WITH DataFlowUtil::Node::getEnclosingCallable#dispred#f0820431#fb ON FIRST 2 OUTPUT Lhs.5, Lhs.2, Lhs.3, Lhs.0, Lhs.4
            0  ~0%    {5} r10 = JOIN r9 WITH Element::ElementBase::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.3, Lhs.1, Lhs.2, Lhs.4, Rhs.1
                      return r10
```
2022-07-21 11:27:02 +02:00
Jeroen Ketema
694d6395d5 C++: Fix join-order problem in cpp/command-line-injection
Before on Abseil Linux:
```
Evaluated relational algebra for predicate ExecTainted::ExecState#class#91000ffb#fff@41084cm7 with tuple counts:
        40879811  ~0%    {2} r1 = SCAN DataFlowUtil::Node::getLocation#dispred#f0820431#ff OUTPUT In.1, In.0
        40879811  ~0%    {2} r2 = JOIN r1 WITH Location::Location::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.1, Rhs.1
            7527  ~3%    {3} r3 = JOIN r2 WITH ExecTainted::interestingConcatenation#91000ffb#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.0
            7527  ~0%    {4} r4 = JOIN r3 WITH DataFlowUtil::Node::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.2, Lhs.1, Lhs.0, Rhs.1
            7527  ~0%    {5} r5 = JOIN r4 WITH DataFlowUtil::Node::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.2, Lhs.1, Lhs.0, Lhs.3, Rhs.1
            7527  ~0%    {6} r6 = JOIN r5 WITH DataFlowUtil::Node::getLocation#dispred#f0820431#ff ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.0, Lhs.3, Lhs.4
            7527  ~0%    {3} r7 = JOIN r6 WITH Location::Location::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT ((((((("ExecState (" ++ Rhs.1) ++ " | ") ++ Lhs.4) ++ ", ") ++ Lhs.1) ++ " | ") ++ Lhs.5 ++ ")"), Lhs.3, Lhs.2
                         return r7
```

After:
```
Evaluated relational algebra for predicate ExecTainted::ExecState#class#91000ffb#fff@1ffe61ps with tuple counts:
        7527  ~0%    {3} r1 = JOIN ExecTainted::interestingConcatenation#91000ffb#ff WITH DataFlowUtil::Node::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.1, Lhs.0, Rhs.1
        7527  ~0%    {4} r2 = JOIN r1 WITH DataFlowUtil::Node::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Rhs.1
        7527  ~1%    {5} r3 = JOIN r2 WITH DataFlowUtil::Node::getLocation#dispred#f0820431#ff ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.0, Lhs.2, Lhs.3
        7527  ~0%    {5} r4 = JOIN r3 WITH Location::Location::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.1, Lhs.2, Lhs.3, Lhs.4, Rhs.1
        7527  ~4%    {6} r5 = JOIN r4 WITH DataFlowUtil::Node::getLocation#dispred#f0820431#ff ON FIRST 1 OUTPUT Rhs.1, Lhs.0, Lhs.1, Lhs.2, Lhs.3, Lhs.4
        7527  ~0%    {3} r6 = JOIN r5 WITH Location::Location::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT ((((((("ExecState (" ++ Rhs.1) ++ " | ") ++ Lhs.3) ++ ", ") ++ Lhs.5) ++ " | ") ++ Lhs.4 ++ ")"), Lhs.1, Lhs.2
                     return r6
```
2022-07-20 16:27:47 +02:00
github-actions[bot]
0ee476129a Post-release preparation for codeql-cli-2.10.1 2022-07-14 14:38:49 +00:00
github-actions[bot]
d1aa0d7dd3 Release preparation for version 2.10.1 2022-07-14 08:56:03 +00:00
ihsinme
98af52fba5 Update DangerousUseMbtowc.ql 2022-07-12 20:19:59 +03:00
Jeroen Ketema
0b471c2007 C++: Improve LossyFunctionResultCast join order
Before on wireshark:
```
Tuple counts for #select#ff@eca61bf2:
        180100  ~2%    {2} r1 = SCAN Type::Type::getUnderlyingType#dispred#f0820431#ff OUTPUT In.1, In.0
            84  ~2%    {2} r2 = JOIN r1 WITH project#Type::FloatingPointType#class#2e8eb3ef#fffff ON FIRST 1 OUTPUT Lhs.1, Rhs.0
          2021  ~0%    {2} r3 = JOIN r2 WITH Function::Function::getType#dispred#f0820431#fb_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1
          2437  ~0%    {2} r4 = JOIN r3 WITH Call::FunctionCall::getTarget#dispred#f0820431#ff_10#join_rhs ON FIRST 1 OUTPUT Lhs.1, Rhs.1
          2150  ~0%    {2} r5 = r4 AND NOT LossyFunctionResultCast::whiteListWrapped#377b528a#f(Lhs.1)
          2150  ~0%    {2} r6 = SCAN r5 OUTPUT In.1, In.0
           313  ~0%    {3} r7 = JOIN r6 WITH exprconv ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.0
           313  ~0%    {3} r8 = JOIN r7 WITH Cast::Conversion#class#1f33e835#b ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2
           148  ~3%    {2} r9 = JOIN r8 WITH Expr::Expr::isCompilerGenerated#f0820431#b ON FIRST 1 OUTPUT Lhs.2, Lhs.1
           148  ~1%    {3} r10 = JOIN r9 WITH Expr::Expr::getActualType#dispred#f0820431#bf ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.0
            21  ~0%    {3} r11 = JOIN r10 WITH Type::IntegralType#class#2e8eb3ef#ff ON FIRST 1 OUTPUT Lhs.1, Lhs.2, Lhs.0
            21  ~0%    {3} r12 = JOIN r11 WITH Element::ElementBase::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.2, Lhs.1, Rhs.1
            21  ~0%    {2} r13 = JOIN r12 WITH Element::ElementBase::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.1, ("Return value of type " ++ Lhs.2 ++ " is implicitly converted to " ++ Rhs.1 ++ " here.")
                       return r13
```

After:
```
Tuple counts for #select#ff@a5a185eg:
          20  ~0%    {2} r1 = SCAN project#Type::FloatingPointType#class#2e8eb3ef#fffff OUTPUT In.0, In.0
          20  ~0%    {2} r2 = JOIN r1 WITH project#Type::FloatingPointType#class#2e8eb3ef#fffff ON FIRST 1 OUTPUT Lhs.1, Lhs.0
          84  ~2%    {2} r3 = JOIN r2 WITH Type::Type::getUnderlyingType#dispred#f0820431#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1
        2021  ~0%    {2} r4 = JOIN r3 WITH Function::Function::getType#dispred#f0820431#fb_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1
        2437  ~0%    {2} r5 = JOIN r4 WITH Call::FunctionCall::getTarget#dispred#f0820431#ff_10#join_rhs ON FIRST 1 OUTPUT Lhs.1, Rhs.1
        2150  ~0%    {2} r6 = r5 AND NOT LossyFunctionResultCast::whiteListWrapped#377b528a#f(Lhs.1)
        2150  ~0%    {2} r7 = SCAN r6 OUTPUT In.1, In.0
         313  ~0%    {3} r8 = JOIN r7 WITH exprconv ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.0
         313  ~0%    {3} r9 = JOIN r8 WITH Cast::Conversion#class#1f33e835#b ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2
         148  ~3%    {2} r10 = JOIN r9 WITH Expr::Expr::isCompilerGenerated#f0820431#b ON FIRST 1 OUTPUT Lhs.2, Lhs.1
         148  ~1%    {3} r11 = JOIN r10 WITH Expr::Expr::getActualType#dispred#f0820431#bf ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.0
          21  ~0%    {3} r12 = JOIN r11 WITH Type::IntegralType#class#2e8eb3ef#ff ON FIRST 1 OUTPUT Lhs.1, Lhs.2, Lhs.0
          21  ~0%    {3} r13 = JOIN r12 WITH Element::ElementBase::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.2, Lhs.1, Rhs.1
          21  ~0%    {2} r14 = JOIN r13 WITH Element::ElementBase::toString#dispred#f0820431#ff ON FIRST 1 OUTPUT Lhs.1, ("Return value of type " ++ Lhs.2 ++ " is implicitly converted to " ++ Rhs.1 ++ " here.")
                     return r14
```
2022-07-06 21:53:12 +02:00
ihsinme
8967f57bbc Update DangerousUseMbtowc.ql 2022-07-04 11:17:12 +03:00