GLSA 201406-30: sudo: Privilege escalation
| Severity: | high |
| Title: | sudo: Privilege escalation |
| Date: | 06/27/2014 |
| Bugs: | |
| ID: | 201406-30 |
Synopsis
A vulnerability has been found in sudo allowing a local attacker to gain elevated privileges.Background
sudo allows a system administrator to give users the ability to run commands as other users. Access to commands may also be granted on a range to hosts.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| app-admin/sudo | < 1.8.5 | >= 1.8.5 | All supported architectures |
Description
When the Sudo env_reset option is disabled (it is enabled by default), certain environment variables are not blacklisted as expected.
Impact
A local attacker, authorized to run commands using sudo, can use this flaw to execute arbitrary code or escalate his privileges.
Workaround
There is no known workaround at this time.
Resolution
All sudo users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/sudo-1.8.5"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.