CVE-2018-1000863

moderate-risk
Published 2018-12-10

A data modification vulnerability exists in Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in User.java, IdStrategy.java that allows attackers to submit crafted user names that can cause an improper migration of user record storage formats, potentially preventing the victim from logging into Jenkins.

Do I need to act?

~
6.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.2/10 High
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Redhat Jenkins

References (8)

Third Party Advisory http://www.securityfocus.com/bid/106176
Third Party Advisory https://access.redhat.com/errata/RHBA-2019:0024
Vendor Advisory https://jenkins.io/security/advisory/2018-12-05/#SECURITY-1072
Exploit https://www.tenable.com/security/research/tra-2018-43
Third Party Advisory http://www.securityfocus.com/bid/106176
Third Party Advisory https://access.redhat.com/errata/RHBA-2019:0024
Vendor Advisory https://jenkins.io/security/advisory/2018-12-05/#SECURITY-1072
Exploit https://www.tenable.com/security/research/tra-2018-43
46
/ 100
moderate-risk
Severity 28/34 · Critical
Exploitability 9/34 · Low
Exposure 9/34 · Low