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OTRS ReDoS Vulnerability (OSA-2021-19)
Information
Severity
Severity
Medium
Family
Family
Web application abuses
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
2 years ago
Modified
Modified
2 years ago
Summary
OTRS is prone to regular expression denial of service (ReDoS) vulnerability in postcs.
Insight
Insight
OTRS uses outdated thirdparty npm module 'resolve-url-loader', which depends on 'postcs' module and it's vulnerable to the ReDoS attack.
Affected Software
Affected Software
OTRS version 7.0.x through 7.0.29 and 8.0.x through 8.0.16.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 7.0.30, 8.0.17 or later.