PT-2021-20902 · Owasp · Owasp Modsecurity Core Rule Set

Andrew Howe · Published 2021-07-10 · Updated 2024-03-18 · CVE-2021-35368

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: OWASP ModSecurity Core Rule Set versions 3.1.x through 3.1.1 OWASP ModSecurity Core Rule Set versions 3.2.x through 3.2.0 OWASP ModSecurity Core Rule Set versions 3.3.x through 3.3.1

Description: The issue is related to a Request Body Bypass via a trailing pathname, which affects the OWASP ModSecurity Core Rule Set. No information is provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations: For versions 3.1.x through 3.1.1, update to version 3.1.2 or later. For versions 3.2.x through 3.2.0, update to version 3.2.1 or later. For versions 3.3.x through 3.3.1, update to version 3.3.2 or later.

Exploit

Fix

Related Identifiers

CVE-2021-35368

DLA-3293-1

MGASA-2024-0070

Affected Products

Owasp Modsecurity Core Rule Set

References · 25

• 🔥 https://coreruleset.org/20210630/cve-2021-35368-crs-request-body-bypass · Exploit
• 🔥 https://portswigger.net/daily-swig/lessons-learned-how-a-severe-vulnerability-in-the-owasp-modsecurity-core-rule-set-sparked-much-needed-change · Exploit
• 🔥 https://portswigger.net/daily-swig/waf-bypass-severe-owasp-modsecurity-core-rule-set-bug-was-present-for-several-years · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-35368 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IVYUJOKHDEXFTM2CZMEESJ6TZSPVNSSZ · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/6MS5GMNYHFFIBWLJW7N3XAD24SLF3PFZ · Vendor Advisory
• https://advisories.mageia.org/MGASA-2024-0070.html · Security Note
• https://osv.dev/vulnerability/CVE-2021-35368 · Vendor Advisory
• https://security.gentoo.org/glsa/202305-25 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-35368 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/C4Q7DCCE37GT5ZBJOWP4NGUD4L3FAMDB · Vendor Advisory
• https://owasp.org/www-project-modsecurity-core-rule-set · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-35368 · Security Note
• https://osv.dev/vulnerability/DLA-3293-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-35368 · Vendor Advisory