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.
References
Link | Resource |
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https://coreruleset.org/20220919/crs-version-3-3-3-and-3-2-2-covering-several-cves/ | Patch Vendor Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PD56EAYNGB6E6QQH62LAYCONOP6OH5DZ/ | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV/ | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ/ | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html | Mailing List Third Party Advisory |
Configurations
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Information
Published : 2022-09-20 00:15
Updated : 2023-02-16 11:20
NVD link : CVE-2022-39958
Mitre link : CVE-2022-39958
JSON object : View
CWE
CWE-116
Improper Encoding or Escaping of Output
Products Affected
debian
- debian_linux
owasp
- owasp_modsecurity_core_rule_set
fedoraproject
- fedora