CVE-2015-5189: Race Condition
First published: Wed Aug 12 2015(Updated: )
It was reported that it's possible to get access as a different user when using pcsd (the pcs web UI) due to using a variable which is global to the server instead of the connection to validate usernames. Scenario is following: User A sends a command to pcsd, after the connection is made and authentication happens, (but before any security checks are done), User B connects and authenticates. User A could potentially get access based on User B's permissions. To take advantage of this the user must have access to login to pcsd.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Pacemaker/Corosync Configuration System | <=0.9.139 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2015-5189?
CVE-2015-5189 has a moderate severity rating due to its potential to allow unauthorized access to user accounts.
How do I fix CVE-2015-5189?
To fix CVE-2015-5189, update to a patched version of the Pacemaker/Corosync Configuration System that is higher than version 0.9.139.
What systems are affected by CVE-2015-5189?
CVE-2015-5189 affects the Pacemaker/Corosync Configuration System versions up to and including 0.9.139.
What type of vulnerability is CVE-2015-5189?
CVE-2015-5189 is an authentication vulnerability that allows for impersonation of another user.
Is CVE-2015-5189 actively exploited?
As of the last report, there have been no known active exploits reported for CVE-2015-5189.
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- vendor/pacemaker\/corosync configuration system project
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- version/pacemaker/corosync configuration system/0.9.139