Improper input validation in Jenkins - CVE-2018-1000863
Published: December 18, 2018
Vulnerability identifier: #VU16574
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-1000863
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote unauthenticated attacker to cause DoS condition.
The vulnerability exists in the User.java and IdStrategy.java codes of Jenkins due to insufficient validation of user names by the affected software. A remote attacker can attempt to log in to the affected application with a user name that submits malicious input, improperly force the migration of user records, which could result in a DoS condition by preventing other users of the application from logging in.
Affected software
Jenkins
How to mitigate CVE-2018-1000863
The vulnerability has been fixed in the versions 2.154, 2.138.4, and 2.150.1.
Jenkins - addressed in versions 2.138.4, 2.150.1, 2.154