Description
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with next# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity
References (2)
Core 2
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1356
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1372
Scores
CVSS v3
5.3
EPSS
0.0167
EPSS Percentile
73.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Details
CWE
CWE-400
Status
published
Products (1)
modsecurity/owasp_modsecurity_core_rule_set
< 3.1.0
Published
Apr 21, 2019
Tracked Since
Feb 18, 2026