GLSA 201009-02: Maildrop: privilege escalation
| Severity: | high |
| Title: | Maildrop: privilege escalation |
| Date: | 09/06/2010 |
| Bugs: | |
| ID: | 201009-02 |
Synopsis
Insecure permission handling in maildrop might allow local attackers to elevate their privileges.Background
maildrop is the mail filter/mail delivery agent that is used by the Courier Mail Server.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| mail-filter/maildrop | < 2.4.2 | >= 2.4.2 | All supported architectures |
Description
Christoph Anton Mitterer reported that maildrop does not properly drop its privileges when run as root.
Impact
A local attacker could create a specially crafted .mailfilter file, possibly leading to the execution of arbitrary commands with the "root" group privileges. NOTE: Successful exploitation requires that maildrop is run as root with the -d option.
Workaround
There is no known workaround at this time.
Resolution
All maildrop users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/maildrop-2.4.2"
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.