CVE-2022-39957

CVSS V2 None CVSS V3 High 7.5
Description
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.
Overview
  • CVE ID
  • CVE-2022-39957
  • Assigner
  • vulnerability@ncsc.ch
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-09-20T07:15:12
  • Last Modified Date
  • 2023-02-16T19:20:32
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:owasp:owasp_modsecurity_core_rule_set:*:*:*:*:*:*:*:* 1 OR 3.0.0 3.2.2
cpe:2.3:a:owasp:owasp_modsecurity_core_rule_set:*:*:*:*:*:*:*:* 1 OR 3.3.0 3.3.3
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* 1 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
History
Created Old Value New Value Data Type Notes
2022-09-20 08:00:46 Added to TrackCVE
2023-01-20 14:12:52 2023-01-20T14:06:16 CVE Modified Date updated
2023-01-20 14:12:52 Undergoing Analysis Analyzed Vulnerability Status updated
2023-01-20 14:12:53 Weakness Enumeration update
2023-01-30 22:14:27 2023-01-30T21:15:10 CVE Modified Date updated
2023-01-30 22:14:27 Analyzed Modified Vulnerability Status updated
2023-01-30 22:14:29 References updated
2023-02-02 13:13:36 Modified Undergoing Analysis Vulnerability Status updated
2023-02-16 21:13:41 2023-02-16T19:20:32 CVE Modified Date updated
2023-02-16 21:13:41 Undergoing Analysis Analyzed Vulnerability Status updated