211 – Asymmetric denial of service - ReDoS
Description
Within the source code there is evidence of the use of dangerous regular expressions, because they make use of complex operations to find matches, which can lead to an attacker sending a specific string of data that could cause the server to crash when evaluating the string with the dangerous regular expression.
Impact
Generate server crash.
Recommendation
Use optimized regular expressions to perform functions without much computational overhead.
Threat
Anonymous attacker from the Internet.
Expected Remediation Time
Score 4.0
Default score using CVSS 4.0. It may change depending on the context of the src.
Base 4.0
- Attack vector: N
- Attack complexity: L
- Attack Requirements: N
- Privileges required: N
- User interaction: N
- Confidentiality (VC): N
- Integrity (VI): N
- Availability (VA): L
- Confidentiality (SC): N
- Integrity (SI): N
- Availability (SA): N
Threat 4.0
- Exploit maturity: U