安全公告/【CVE-2022-39956】

基本信息

漏洞名称:
受影响操作系统:Asianux
危险等级:超危
影响源码包:mod_security_crs
CVSS评分:9.8
发现日期:2022-11-02
修复日期:
修复版本:mod_security_crs-3.2.2-1

漏洞描述

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).

漏洞判定

执行命令yum info PackageName获取软件包版本号,版本小于修复版本,则受此漏洞影响,版本大于等于修复版本,则此漏洞已修复

修复方式

yum update PackageName

补丁