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Dave Bartolomeo
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‎change-notes/1.24/analysis-java.md‎

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@@ -10,10 +10,11 @@ The following changes in version 1.24 affect Java analysis in all applications.
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| **Query** | **Tags** | **Purpose** |
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|-----------------------------|-----------|--------------------------------------------------------------------|
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| Disabled Spring CSRF protection (`java/spring-disabled-csrf-protection`) | security, external/cwe/cwe-352 | Finds disabled Cross-Site Request Forgery (CSRF) protection in Spring. |
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| Disabled Spring CSRF protection (`java/spring-disabled-csrf-protection`) | security, external/cwe/cwe-352 | Finds disabled Cross-Site Request Forgery (CSRF) protection in Spring. Results are shown on LGTM by default. |
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| Failure to use HTTPS or SFTP URL in Maven artifact upload/download (`java/maven/non-https-url`) | security, external/cwe/cwe-300, external/cwe/cwe-319, external/cwe/cwe-494, external/cwe/cwe-829 | Finds use of insecure protocols during Maven dependency resolution. Results are shown on LGTM by default. |
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| LDAP query built from user-controlled sources (`java/ldap-injection`) | security, external/cwe/cwe-090 | Finds LDAP queries vulnerable to injection of unsanitized user-controlled input. Results are shown on LGTM by default. |
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| Left shift by more than the type width (`java/lshift-larger-than-type-width`) | correctness | Finds left shifts of ints by 32 bits or more and left shifts of longs by 64 bits or more. Results are shown on LGTM by default. |
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| Suspicious date format (`java/suspicious-date-format`) | correctness | Finds date format patterns that use placeholders that are likely to be incorrect. |
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| Suspicious date format (`java/suspicious-date-format`) | correctness | Finds date format patterns that use placeholders that are likely to be incorrect. Results are shown on LGTM by default. |
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## Changes to existing queries
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‎change-notes/1.24/analysis-javascript.md‎

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| Expression has no effect (`js/useless-expression`) | Fewer false positive results | The query now recognizes block-level flow type annotations and ignores the first statement of a try block. |
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| Use of call stack introspection in strict mode (`js/strict-mode-call-stack-introspection`) | Fewer false positive results | The query no longer flags expression statements. |
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| Missing CSRF middleware (`js/missing-token-validation`) | Fewer false positive results | The query reports fewer duplicates and only flags handlers that explicitly access cookie data. |
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| Uncontrolled data used in path expression (`js/path-injection`) | More results | This query now recognizes additional ways dangerous paths can be constructed. |
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## Changes to libraries
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‎cpp/ql/src/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll‎

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@@ -6,6 +6,7 @@ private import cpp
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private import semmle.code.cpp.ir.IR
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private import semmle.code.cpp.controlflow.IRGuards
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private import semmle.code.cpp.ir.ValueNumbering
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private import semmle.code.cpp.models.interfaces.DataFlow
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/**
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* A newtype wrapper to prevent accidental casts between `Node` and
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// Flow through the partial operand belongs in the taint-tracking libraries
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// for now.
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iTo.getAnOperand().(ChiTotalOperand).getDef() = iFrom
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or
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// Flow through modeled functions
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modelFlow(iFrom, iTo)
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}
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private predicate modelFlow(Instruction iFrom, Instruction iTo) {
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exists(
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CallInstruction call, DataFlowFunction func, FunctionInput modelIn, FunctionOutput modelOut
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|
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call.getStaticCallTarget() = func and
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func.hasDataFlow(modelIn, modelOut)
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|
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(
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modelOut.isReturnValue() and
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iTo = call
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or
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// TODO: Add write side effects for return values
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modelOut.isReturnValueDeref() and
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iTo = call
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or
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exists(WriteSideEffectInstruction outNode |
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modelOut.isParameterDeref(outNode.getIndex()) and
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iTo = outNode and
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outNode.getPrimaryInstruction() = call
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)
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// TODO: add write side effects for qualifiers
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) and
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(
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exists(int index |
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modelIn.isParameter(index) and
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iFrom = call.getPositionalArgument(index)
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)
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or
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exists(int index, ReadSideEffectInstruction read |
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modelIn.isParameterDeref(index) and
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read.getIndex() = index and
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read.getPrimaryInstruction() = call and
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iFrom = read.getSideEffectOperand().getAnyDef()
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)
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or
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modelIn.isQualifierAddress() and
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iFrom = call.getThisArgument()
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// TODO: add read side effects for qualifiers
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)
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)
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}
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/**

‎cpp/ql/test/library-tests/dataflow/DefaultTaintTracking/defaulttainttracking.cpp‎

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reinterpret_cast<D2*>(b2)->f(getenv("VAR"));
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dynamic_cast<D3*>(b2)->f(getenv("VAR")); // tainted [FALSE POSITIVE]
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}
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namespace std {
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template< class T >
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T&& move( T&& t ) noexcept;
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}
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void test_std_move() {
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sink(std::move(getenv("VAR")));
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}

‎cpp/ql/test/library-tests/dataflow/DefaultTaintTracking/tainted.expected‎

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| defaulttainttracking.cpp:79:30:79:35 | call to getenv | defaulttainttracking.cpp:79:30:79:35 | call to getenv |
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| defaulttainttracking.cpp:79:30:79:35 | call to getenv | defaulttainttracking.cpp:79:30:79:42 | (const char *)... |
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| defaulttainttracking.cpp:79:30:79:35 | call to getenv | test_diff.cpp:1:11:1:20 | p#0 |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:9:11:9:20 | p#0 |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:84:17:84:17 | t |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:8:88:16 | call to move |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:8:88:32 | (const char *)... |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:8:88:32 | (reference dereference) |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:18:88:23 | call to getenv |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:18:88:30 | (reference to) |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | test_diff.cpp:1:11:1:20 | p#0 |
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| test_diff.cpp:92:10:92:13 | argv | defaulttainttracking.cpp:9:11:9:20 | p#0 |
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| test_diff.cpp:92:10:92:13 | argv | test_diff.cpp:1:11:1:20 | p#0 |
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| test_diff.cpp:92:10:92:13 | argv | test_diff.cpp:92:10:92:13 | argv |

‎cpp/ql/test/library-tests/dataflow/DefaultTaintTracking/test_diff.expected‎

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| defaulttainttracking.cpp:22:20:22:25 | call to getenv | defaulttainttracking.cpp:24:8:24:10 | array to pointer conversion | IR only |
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| defaulttainttracking.cpp:38:25:38:30 | call to getenv | defaulttainttracking.cpp:39:51:39:61 | env_pointer | AST only |
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| defaulttainttracking.cpp:64:10:64:15 | call to getenv | defaulttainttracking.cpp:52:24:52:24 | p | IR only |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:9:11:9:20 | p#0 | IR only |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:8:88:16 | call to move | IR only |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:8:88:32 | (const char *)... | IR only |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:8:88:32 | (reference dereference) | IR only |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | defaulttainttracking.cpp:88:18:88:30 | (reference to) | IR only |
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| defaulttainttracking.cpp:88:18:88:23 | call to getenv | test_diff.cpp:1:11:1:20 | p#0 | IR only |
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| test_diff.cpp:104:12:104:15 | argv | test_diff.cpp:104:11:104:20 | (...) | IR only |
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| test_diff.cpp:108:10:108:13 | argv | test_diff.cpp:36:24:36:24 | p | AST only |
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| test_diff.cpp:111:10:111:13 | argv | defaulttainttracking.cpp:9:11:9:20 | p#0 | AST only |

‎cpp/ql/test/library-tests/dataflow/taint-tests/test_diff.expected‎

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| taint.cpp:352:7:352:7 | taint.cpp:330:6:330:11 | AST only |
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| taint.cpp:372:7:372:7 | taint.cpp:365:24:365:29 | AST only |
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| taint.cpp:374:7:374:7 | taint.cpp:365:24:365:29 | AST only |
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| taint.cpp:382:7:382:7 | taint.cpp:377:23:377:28 | AST only |
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| taint.cpp:391:7:391:7 | taint.cpp:385:27:385:32 | AST only |
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| taint.cpp:423:7:423:7 | taint.cpp:422:14:422:19 | AST only |
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| taint.cpp:424:9:424:17 | taint.cpp:422:14:422:19 | AST only |

‎cpp/ql/test/library-tests/dataflow/taint-tests/test_ir.expected‎

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| taint.cpp:291:7:291:7 | y | taint.cpp:275:6:275:11 | call to source |
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| taint.cpp:337:7:337:7 | t | taint.cpp:330:6:330:11 | call to source |
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| taint.cpp:350:7:350:7 | t | taint.cpp:330:6:330:11 | call to source |
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| taint.cpp:382:7:382:7 | a | taint.cpp:377:23:377:28 | source |
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| taint.cpp:429:7:429:7 | b | taint.cpp:428:13:428:18 | call to source |
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| taint.cpp:430:9:430:14 | member | taint.cpp:428:13:428:18 | call to source |

‎cpp/ql/test/library-tests/ir/ir/PrintAST.expected‎

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@@ -5753,9 +5753,9 @@ ir.cpp:
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# 851| 0: [VariableDeclarationEntry] definition of d
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# 851| Type = [Struct] PolymorphicDerived
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# 851| init: [Initializer] initializer for d
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# 851| expr: [ConstructorCall] call to PolymorphicDerived
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# 851| Type = [VoidType] void
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# 851| ValueCategory = prvalue
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#-----| expr: [ConstructorCall] call to PolymorphicDerived
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#-----| Type = [VoidType] void
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#-----| ValueCategory = prvalue
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# 853| 2: [DeclStmt] declaration
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# 853| 0: [VariableDeclarationEntry] definition of pb
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# 853| Type = [PointerType] PolymorphicBase *

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