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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published: 2022-09-20T00:00:00

Updated: 2024-08-03T12:07:42.939Z

Reserved: 2022-09-05T00:00:00

Link: CVE-2022-39957

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-09-20T07:15:12.353

Modified: 2023-11-07T03:50:41.860

Link: CVE-2022-39957

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-09-19T00:00:00Z

Links: CVE-2022-39957 - Bugzilla