CVE-2022-39956 Detail
Description
The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encoding scheme via the Content-Type or the deprecated Content-Transfer-Encoding multipart MIME header fields that will not be decoded and inspected by the web application firewall engine and the rule set. The multipart payload will therefore bypass detection. A vulnerable backend that supports these encoding schemes can potentially be exploited. 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 upgrade to 3.2.2 and 3.3.3 respectively. The mitigation against these vulnerabilities depends on the installation of the latest ModSecurity version (v2.9.6 / v3.0.8).
Severity
CVSS Version 3.x CVSS Version 2.0
CVSS 3.x Severity and Metrics:
CVSS 2.0 Severity and Metrics:
References to Advisories, Solutions, and Tools
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-116
Improper Encoding or Escaping of ..
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