Bug 1656906 (CVE-2018-1000863)

Summary: CVE-2018-1000863 jenkins: forced migration of user records (SECURITY-1072)
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ahardin, aos-bugs, bleanhar, bparees, ccoleman, dedgar, eparis, java-sig-commits, jgoulding, jokerman, mchappel, mizdebsk, msrb, wzheng
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: jenkins 2.154, Jenkins LTS 2.138.4, Jenkins LTS 2.150.1 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-27 03:20:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1656907, 1657099    
Bug Blocks: 1656867    

Description Laura Pardo 2018-12-06 16:06:44 UTC 
A flaw was found in Jenkins. The fix for SECURITY-499 introduced a mechanism that renamed user directories on disk as a user with an unsafe user name (user ID) is loaded. Insufficient input validation allowed attackers to rename such user directories even for users with a safe user name by submitting a crafted user name when attempting to log in, even with an invalid password. Doing so prevented users from logging in successfully afterwards.


References:
https://jenkins.io/security/advisory/2018-12-05/
Comment 1 Laura Pardo 2018-12-06 16:07:13 UTC 
Created jenkins tracking bugs for this issue:

Affects: fedora-all [bug 1656907]