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Vulnerabilidades / CVE-2022-39955

crítica

CVE-2022-39955

mod_security_crs: Multiple charsets defined in Content-Type header

Publicada Modificada CWE 863
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Red Hat (media).

Descripción

The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates multiple character encoding schemes. A vulnerable back-end can potentially be exploited by declaring multiple Content-Type "charset" names and therefore bypassing the configurable CRS Content-Type header "charset" allow list. An encoded payload can bypass CRS detection this way and may then be decoded by the backend. 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.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
debian 10modsecurity-crs3.2.3-0+deb10u3
debian 11modsecurity-crs3.3.4-1~deb11u1
debian 12modsecurity-crs3.3.4-1
debian 13modsecurity-crs3.3.4-1
debian 14modsecurity-crs3.3.4-1
echomodsecurity-crs3.3.4-1
rapidfort alma 8mod_security_crssin corrección indicada
rapidfort alma 9mod_security_crssin corrección indicada
rapidfort Red Hat 9mod_security_crssin corrección indicada
Red Hatmod_security_crssin corrección indicada

Referencias

Las 11 referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.