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1bbe4b1cfb
* chore: Exclude CLAUDE.md from Cargo.toml * feat: add callgraph module and integrate into main analysis flow * feat: enhance CLI with new severity filtering and analysis modes * feat: update CHANGELOG with recent enhancements and fixes to severity filtering and output handling * feat: implement state-model dataflow analysis for resource lifecycle and auth state * feat: enhance diagnostic output formatting and add evidence structure * feat: implement attack surface ranking for diagnostics with scoring and sorting * feat: add comprehensive documentation for installation, usage, and rules reference * feat: add multiple language support for command execution and evaluation endpoints * feat: implement inline suppression for findings using `nyx:ignore` comments * feat: add confidence levels to AST patterns and update output structure * feat: implement low-noise prioritization system with category filtering, rollup grouping, and configurable budgets * feat: bump version to 0.4.0 and update changelog with new features and improvements * feat: add dead code allowances to various functions in mod.rs and real_world_tests.rs
1.8 KiB
1.8 KiB
C++ Rules
C++ rules inherit C banned-function concerns and add C++-specific patterns like dangerous casts.
Taint Labels
C++ shares taint labels with C. See C Rules for the full source/sink/sanitizer listing.
AST Pattern Rules
Memory Safety
| Rule ID | Severity | Tier | Description |
|---|---|---|---|
cpp.memory.gets |
High | A | gets() — no bounds checking, always exploitable |
cpp.memory.strcpy |
High | A | strcpy() — no bounds checking on destination |
cpp.memory.strcat |
High | A | strcat() — no bounds checking on destination |
cpp.memory.sprintf |
High | A | sprintf() — no length limit on output |
cpp.memory.reinterpret_cast |
Medium | A | reinterpret_cast — type-punning cast |
cpp.memory.const_cast |
Medium | A | const_cast — removes const/volatile qualifier |
cpp.memory.printf_no_fmt |
High | B | printf(var) — format-string vulnerability |
Command Execution
| Rule ID | Severity | Tier | Description |
|---|---|---|---|
cpp.cmdi.system |
High | A | system() — shell command execution |
cpp.cmdi.popen |
High | A | popen() — shell command execution |
Examples
cpp.memory.reinterpret_cast — Type-punning cast
Flagged:
int x = 42;
float* fp = reinterpret_cast<float*>(&x); // Type-punning, may violate strict aliasing
Safe alternative:
int x = 42;
float f;
std::memcpy(&f, &x, sizeof(f)); // Well-defined type punning
cpp.memory.const_cast — Removing const
Flagged:
void process(const std::string& s) {
char* p = const_cast<char*>(s.c_str()); // Removes const
p[0] = 'X'; // Undefined behavior
}
Safe alternative:
void process(std::string s) { // Take by value
s[0] = 'X';
}