SYM_CS_0020 - SymbioticSec/Symbiotic-Vulnerability-Database GitHub Wiki

Inefficient Regular Expression Complexity

Property Value
Language csharp
Severity medium
CWE CWE-1333: Inefficient Regular Expression Complexity
OWASP A01:2017 - Injection
Confidence Level Medium
Impact Level Medium
Likelihood Level Low

Description

The code creates regular expressions with no or excessively long timeouts, which means regex operations could run indefinitely if given complex or malicious input. This leaves the application vulnerable to resource exhaustion.

Impact

An attacker could craft input that causes the regex engine to hang, potentially freezing the application or making it unresponsive. This can lead to denial of service, impacting system reliability and availability for legitimate users.