Request Body Bypass Vulnerability in OWASP ModSecurity Core Rule Set
CVE-2021-35368

9.8CRITICAL

Key Information:

Vendor

Owasp

Status
Owasp Modsecurity Core Rule Set
Vendor
CVE Published:
5 November 2021

What is CVE-2021-35368?

The OWASP ModSecurity Core Rule Set, in versions prior to 3.1.2, 3.2.1, and 3.3.2, is vulnerable to a Request Body Bypass due to improper handling of trailing pathnames. This flaw enables attackers to bypass core security rules intended to scrutinize incoming request bodies, potentially leading to unauthorized access and data exposure. Users should immediately update to the latest versions to mitigate this risk and protect their web applications from exploitation.

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References

https://owasp.org/www-project-modsecurity-core-rule-set/
https://portswigger.net/daily-swig/lessons-learned-how-a-...
https://portswigger.net/daily-swig/waf-bypass-severe-owas...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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