CVE-2022-39957
20.09.2022, 07:15
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.Enginsight
| Vendor | Product | Version |
|---|---|---|
| owasp | owasp_modsecurity_core_rule_set | 3.0.0 ≤ 𝑥 < 3.2.2 |
| owasp | owasp_modsecurity_core_rule_set | 3.3.0 ≤ 𝑥 < 3.3.3 |
| debian | debian_linux | 10.0 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
Common Weakness Enumeration
- CWE-693 - Protection Mechanism FailureThe product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
- CWE-116 - Improper Encoding or Escaping of OutputThe software prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
References