Denial of service in Jenkins - CVE-2018-1999043
Published: September 5, 2018
Vulnerability identifier: #VU14614
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-1999043
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jenkins
Affected software:
Jenkins
Jenkins
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to an error in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java. A remote attacker can attempt to log in using invalid credentials, create ephemeral in-memory user records and cause the service to crash.
How to mitigate CVE-2018-1999043
The vulnerability has been fixed in the versions 2.138, 2.121.3.