5.3

CVE-2019-11389: modsecurity owasp_modsecurity_core_rule_set Uncontrolled Resource Consumption

CVSS: 5.3v3.1MediumModified
AliasesDEBIAN-CVE-2019-11389
Published 21-04-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-11389 is a medium (CVSS 5.3) Uncontrolled Resource Consumption vulnerability in modsecurity owasp_modsecurity_core_rule_set. EPSS estimates a 1.63% chance of exploitation in the next 30 days, higher than 75.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.63%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 21-04-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.63%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

-0.05 pp

From 1.67% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.63%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Owasp Modsecurity Crs

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • modsecurity-crsAll versions (No fix recorded)
Modsecurity1 product

2 vendors · 2 products

References

3 links