CVE-2016-4444: Command Injection
First published: Tue May 03 2016(Updated: )
The allow_execmod plugin for setroubleshoot before 3.2.23 allows local users to execute arbitrary commands by triggering an execmod SELinux denial with a crafted binary filename, related to the commands.getstatusoutput function.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/setroubleshoot-plugins | <3.2.23 | 3.2.23 |
| Red Hat Setroubleshoot-server | <=3.2.22 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux HPC Node | =7.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 |
Remedy
https://github.com/fedora-selinux/setroubleshoot/commit/5cd60033ea7f5bdf8c19c27b23ea2d773d9b09f5
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1332411
- https://github.com/fedora-selinux/setroubleshoot/commit/5cd60033ea7f5bdf8c19c27b23ea2d773d9b09f5
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1332644#c0
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1332644#c3
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1339250
- https://access.redhat.com/errata/RHSA-2016:1267
- https://access.redhat.com/errata/RHSA-2016:1293
- https://bugzilla.redhat.com/show_bug.cgi?id=1332644
- http://seclists.org/oss-sec/2016/q2/575
- http://www.securityfocus.com/bid/91476
- http://www.securitytracker.com/id/1036144
- https://rhn.redhat.com/errata/RHSA-2016-1267.html
Frequently Asked Questions
What is the severity of CVE-2016-4444?
CVE-2016-4444 is considered a high-severity vulnerability due to its potential to allow local users to execute arbitrary commands.
How do I fix CVE-2016-4444?
To fix CVE-2016-4444, you should upgrade to setroubleshoot-plugins version 3.2.23 or later.
Who is affected by CVE-2016-4444?
CVE-2016-4444 affects users running setroubleshoot-plugins versions earlier than 3.2.23 on systems like Red Hat Enterprise Linux 7.0.
What causes CVE-2016-4444?
CVE-2016-4444 is caused by inadequate handling of execmod SELinux denials, allowing crafted binary filenames to execute arbitrary commands.
Is CVE-2016-4444 a local or remote vulnerability?
CVE-2016-4444 is a local vulnerability, allowing exploitation only by authenticated users with local access.
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