PT-2019-12273 · Owasp · Owasp Modsecurity Core Rule Set

Md3V · Published 2019-04-21 · Updated 2022-04-18 · CVE-2019-11387

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions OWASP ModSecurity Core Rule Set (CRS) versions 3.1.0 and earlier

Description A problem was discovered in the OWASP ModSecurity Core Rule Set (CRS) that allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with nested repetition operators. The file /rules/REQUEST-942-APPLICATION-ATTACK-SQLI.conf is vulnerable to this issue.

Recommendations For OWASP ModSecurity Core Rule Set (CRS) versions 3.1.0 and earlier, consider disabling the /rules/REQUEST-942-APPLICATION-ATTACK-SQLI.conf file until a patch is available to prevent remote attackers from causing a denial of service (ReDOS).

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2019-11387

Affected Products

Owasp Modsecurity Core Rule Set

References · 10

• https://osv.dev/vulnerability/CVE-2019-11387 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11387 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-11387 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2019-11387 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-11387 · Vendor Advisory
• https://coreruleset.org/20190627/announcement-owasp-modsecurity-core-rule-set-version-3-1-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-11387 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-11387 · Security Note
• https://github.com/SpiderLabs/owasp-modsecurity-crs/blob/v3.1/dev/CHANGES · Note
• https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1359 · Note