Vulnerability CVE-2019-11387
Published: 2019-04-20   Modified: 2019-04-22

Description:
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-942-APPLICATION-ATTACK-SQLI.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with nested repetition operators.

Type:

CWE-185

 (Incorrect Regular Expression)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Modsecurity -> Owasp modsecurity core rule set 

 References:
https://coreruleset.org/20190627/announcement-owasp-modsecurity-core-rule-set-version-3-1-1/
https://github.com/SpiderLabs/owasp-modsecurity-crs/blob/v3.1/dev/CHANGES
https://github.com/SpiderLabs/owasp-modsecurity-crs/issues/1359
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