Unrated
Response body bypass in OWASP ModSecurity Core Rule Set via a specialy crafted charset in the HTTP Accept header
CVE-2022-39957
First seen on SecPulse
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2022-39957 modsecurity-crs Fixed in: 3.3.4-1~deb11u1
- Ubuntu UBUNTU-CVE-2022-39957 modsecurity-crs
Original description The description as published by the source.
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order to receive the response in an encoded form. Depending on the "charset", this response can not be decoded by the web application firewall. A restricted resource, access to which would ordinarily be detected, may therefore bypass detection. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.
References
- advisory github.com
- advisory lists.fedoraproject.org
- advisory lists.fedoraproject.org
- advisory lists.fedoraproject.org
- advisory nvd.nist.gov
- advisory security.gentoo.org
- web coreruleset.org
- web lists.debian.org
- web lists.debian.org