Bug 1704656 (CVE-2019-10911) - 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.
Summary: CVE-2019-10911 drupal: Part of an expiry time in a remember me cookie could b...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-10911
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1704657 1711315 1711316
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-04-30 09:29 UTC by Marian Rehak
Modified: 2019-09-29 15:12 UTC (History)
6 users (show)

Fixed In Version: drupal 8.6.15, drupal 8.5.15
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Environment:
Last Closed: 2019-06-10 10:54:49 UTC
Embargoed:

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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.
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