CVE-2021-35368

Public Exploit

Description

OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname.

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.29%

Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory coreruleset.org Vendor Advisory owasp.org

Affected: n/a n/a

References

Link	Tags
https://owasp.org/www-project-modsecurity-core-rule-set/	vendor advisory
https://portswigger.net/daily-swig/lessons-learned-how-a-severe-vulnerability-in-the-owasp-modsecurity-core-rule-set-sparked-much-needed-change	third party advisory exploit
https://portswigger.net/daily-swig/waf-bypass-severe-owasp-modsecurity-core-rule-set-bug-was-present-for-several-years	third party advisory exploit
https://coreruleset.org/20210630/cve-2021-35368-crs-request-body-bypass/	release notes exploit vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MS5GMNYHFFIBWLJW7N3XAD24SLF3PFZ/	vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IVYUJOKHDEXFTM2CZMEESJ6TZSPVNSSZ/	vendor advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html	third party advisory mailing list
https://security.gentoo.org/glsa/202305-25	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-35368?: CVE-2021-35368 has been scored as a critical severity vulnerability.
How to fix CVE-2021-35368?: To fix CVE-2021-35368, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-35368 being actively exploited in the wild?: It is possible that CVE-2021-35368 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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