Vulnerability Information
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Vulnerability Title
OWASP CRS has multipart bypass using multiple content-type parts
Vulnerability Description
The OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to versions 4.22.0 and 3.3.8, the current rule 922110 has a bug when processing multipart requests with multiple parts. When the first rule in a chain iterates over a collection (like `MULTIPART_PART_HEADERS`), the capture variables (`TX:0`, `TX:1`) get overwritten with each iteration. Only the last captured value is available to the chained rule, which means malicious charsets in earlier parts can be missed if a later part has a legitimate charset. Versions 4.22.0 and 3.3.8 patch the issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Vulnerability Type
对特殊元素的多个实例的过滤不完全
Vulnerability Title
OWASP CRS 安全漏洞
Vulnerability Description
OWASP CRS是CRS Project开源的一套攻击检测规则集。 OWASP CRS 4.22.0之前版本和3.3.8之前版本存在安全漏洞，该漏洞源于处理多部分请求时规则922110存在缺陷，可能导致恶意字符集被忽略。
CVSS Information
N/A
Vulnerability Type
N/A