Bug 1704656 (CVE-2019-10911)

Summary: CVE-2019-10911 drupal: Part of an expiry time in a remember me cookie could be considered part of the username, where modifying it would lead to authentication as a different user.
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: extras-orphan, fedora, gwync, james.hogarth, shawn, sven
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: drupal 8.6.15, drupal 8.5.15 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:54:49 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: 1704657, 1711315, 1711316    
Bug Blocks:    

Description Marian Rehak 2019-04-30 09:29:54 UTC 
An attacker could modify the remember me cookie and authenticate as a different user. This attack is only possible if remember me functionality is enabled and the two users share a password hash or the password hashes are null.

External References:
https://symfony.com/blog/cve-2019-10911-add-a-separator-in-the-remember-me-cookie-hash
Comment 1 Marian Rehak 2019-04-30 09:30:03 UTC 
Created drupal tracking bugs for this issue:

Affects: fedora-all [bug 1704657]
Comment 2 Marian Rehak 2019-05-17 13:42:56 UTC 
Created php-symfony tracking bugs for this issue:

Affects: epel-all [bug 1711316]
Affects: fedora-all [bug 1711315]
Comment 3 Product Security DevOps Team 2019-06-10 10:54:49 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.