REDHAT-BUG-1211370
First published: Mon Apr 13 2015(Updated: )
Franck Grosjean of Red Hat reports: Description of problem: acl definitions are not enforced and could be bypassed by a user without write access to the cib Version-Release number of selected component (if applicable): RedHat Enterprise Linux 6.6 pcs --version = 0.9.123 pacemakerd --version = Pacemaker 1.1.11 How reproducible: a user with a read-only role can assign any other existing roles to himself and then gain any kind of access from any role (rw access to the cib if this kind of role exist). Steps to Reproduce: 1. create a role read-only pcs acl role create read-only description="Read only access" read xpath /cib 2. create a role admin pcs acl role create admin description="Admin access" write xpath /cib 3. create an account (local + pcs) 4. open a session with this roaccount account 5. add admin role to your account pcs acl role assign admin to rocluster 6. check new acl pushed as a read-only user pcs acl User: rocluster Roles: read-only admin Role: read-only Description: Read only access Permission: read xpath /cib (read-only-read) Role: admin Description: Admin access Permission: write xpath /cib (admin-write) 7. add/delete/modify anything Actual results: obtain rw access to the cib Expected results: must not be possible with read-only access to the cib to assign a role Additional info: Introduced in: <a href="https://github.com/ClusterLabs/pacemaker/commit/f242c1ef">https://github.com/ClusterLabs/pacemaker/commit/f242c1ef</a> Fixed in: <a href="https://github.com/ClusterLabs/pacemaker/commit/84ac07c">https://github.com/ClusterLabs/pacemaker/commit/84ac07c</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux | ||
| Red Hat PCS | ||
| CentOS Pacemaker-libs |
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Reference Links
- https://github.com/ClusterLabs/pacemaker/commit/f242c1ef
- https://github.com/ClusterLabs/pacemaker/commit/84ac07c
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1238846
- https://rhn.redhat.com/errata/RHSA-2015-1424.html
- https://rhn.redhat.com/errata/RHSA-2015-2383.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1211370
Frequently Asked Questions
What is the severity of REDHAT-BUG-1211370?
The severity of REDHAT-BUG-1211370 is considered high due to potential bypass of ACL definitions.
How do I fix REDHAT-BUG-1211370?
To fix REDHAT-BUG-1211370, update to the patched version of Red Hat Enterprise Linux and affected components once available.
Which versions are affected by REDHAT-BUG-1211370?
REDHAT-BUG-1211370 affects Red Hat Enterprise Linux 6.6 and specific versions of pcs and Pacemaker.
What are the risks associated with REDHAT-BUG-1211370?
The risks associated with REDHAT-BUG-1211370 include unauthorized users potentially bypassing access controls.
Is there a workaround for REDHAT-BUG-1211370 until a fix is released?
Currently, there are no recommended workarounds for REDHAT-BUG-1211370 until an official fix is provided.
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