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CVE-2022-39958— Response body bypass in OWASP ModSecurity Core Rule Set via repeated HTTP Range header submission with a small byte range

Quick assessment

Affected
OWASP ModSecurity Core Rule Set
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OWASP ModSecurity Core Rule Set（CRS）是一组用于ModSecurity或兼容的Web应用程序防火墙的通用攻击检测规则。 OWASP ModSecurity Core Rule Set (CRS)存在安全漏洞，该漏洞源于响应规则集绕过小范围标头。

CVSS 7.5 · High EPSS 1.02% · P61
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I. Basic Information for CVE-2022-39958

Vulnerability Information
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Vulnerability Title
Response body bypass in OWASP ModSecurity Core Rule Set via repeated HTTP Range header submission with a small byte range
Source: CVE Program / CVE List V5
Vulnerability Description
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP Range header field with a small byte range. A restricted resource, access to which would ordinarily be detected, may be exfiltrated from the backend, despite being protected by a web application firewall that uses CRS. Short subsections of a restricted resource may bypass pattern matching techniques and allow undetected access. 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 and to configure a CRS paranoia level of 3 or higher.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
OWASP ModSecurity Core Rule Set 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OWASP ModSecurity Core Rule Set（CRS）是一组用于ModSecurity或兼容的Web应用程序防火墙的通用攻击检测规则。 OWASP ModSecurity Core Rule Set (CRS)存在安全漏洞，该漏洞源于响应规则集绕过小范围标头。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OWASP ModSecurity Core Rule Set 3.0.x -

II. Public POCs for CVE-2022-39958

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III. Intelligence Information for CVE-2022-39958

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Vendor Advisories for CVE-2022-39958 (1)

Mailing List Discussions for CVE-2022-39958 (3)

Other References for CVE-2022-39958 (1)

Same Patch Batch · OWASP · 2022-09-20 · 4 CVEs total

CVE-2022-39955 7.3 HIGH Partial rule set bypass in OWASP ModSecurity Core Rule Set by submitting a specially craft
CVE-2022-39956 7.3 HIGH Partial rule set bypass in OWASP ModSecurity Core Rule Set for HTTP multipart requests us
CVE-2022-39957 7.3 HIGH Response body bypass in OWASP ModSecurity Core Rule Set via a specialy crafted charset in

IV. Related Vulnerabilities

Same product: ModSecurity Core Rule Set
Same vendor: OWASP
Same weakness: CWE-863

V. Comments for CVE-2022-39958

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