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CVE-2022-39957

Опубликовано: 19 сент. 2022
Источник: redhat
CVSS3: 7.3

Описание

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.

A flaw was found in the OWASP ModSecurity Core Rule Set. A payload with a HTTP accept header field containing a charset that can't be decoded by the Web Application Firewall allows a response body bypass, resulting in access to restricted resources.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 7mod_security_crsOut of support scope
Red Hat Enterprise Linux 8mod_security_crsWill not fix
Red Hat Enterprise Linux 9mod_security_crsWill not fix

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-693
https://bugzilla.redhat.com/show_bug.cgi?id=2131319mod_security_crs: Charset accept header field resulting in response rule set bypass

7.3 High

CVSS3

Связанные уязвимости

CVSS3: 7.3
ubuntu
больше 3 лет назад

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.

CVSS3: 7.3
nvd
больше 3 лет назад

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.

CVSS3: 7.3
debian
больше 3 лет назад

The OWASP ModSecurity Core Rule Set (CRS) is affected by a response bo ...

CVSS3: 7.5
github
больше 3 лет назад

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.

7.3 High

CVSS3