Bug 1545899 (CVE-2018-1000067)

Summary: CVE-2018-1000067 jenkins: Improperly secured form validation for proxy configuration allows Server-Side Request Forgery
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, bleanhar, ccoleman, dedgar, dmcphers, java-sig-commits, jgoulding, jokerman, mchappel, mizdebsk, msrb
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: jenkins weekly 2.107, jenkins LTS 2.89.4 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-21 19:54:41 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: 1545900, 1565312, 1565313    
Bug Blocks: 1545912    

Description Laura Pardo 2018-02-15 19:34:06 UTC 
A flaw was found in Jenkins weekly up to and including 2.106 and Jenkins LTS up to and including 2.89.3. The form validation for the proxy configuration form did not check the permission of the user accessing it, allowing anyone with Overall/Read access to Jenkins to cause Jenkins to send a GET request to a specified URL, optionally with a specified proxy configuration.

If that request’s HTTP response code indicates success, the form validation is returning a generic success message, otherwise the HTTP status code is returned. It was not possible to reuse an existing proxy configuration to send those requests; that configuration had to be provided by the attacker.


References:
https://jenkins.io/security/advisory/2018-02-14/
Comment 1 Laura Pardo 2018-02-15 19:34:30 UTC 
Created jenkins tracking bugs for this issue:

Affects: fedora-all [bug 1545900]