Dovecot mail_extra_groups option unauthorized access

dovecot-mailextragroups-unauth-access (41009) The risk level is classified as MediumMedium Risk

Description:

Dovecot could allow a local attacker to gain unauthorized access on the system, caused by an error when the mail_extra_groups option is enabled. By creating a symlink, an attacker could read, modify, and delete arbitrary files that have mail group permissions set.

Platforms Affected:

  • Canonical, Ubuntu 6.06 LTS
  • Canonical, Ubuntu 6.10
  • Canonical, Ubuntu 7.04
  • Canonical, Ubuntu 7.10
  • Debian, Debian Linux 4.0
  • Gentoo, Linux
  • RedHat, Enterprise Linux 5
  • RedHat, Enterprise Linux 5 Client Workstation
  • Timo Sirainen, Dovecot prior to 1.0.11

Remedy:

Upgrade to the latest version of Dovecot (1.0.11 or later), available from the Dovecot Web site. See References.

Consequences:

File Manipulation

References:

Reported:

Mar 04, 2008

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.

For corrections or additions please email xforce@iss.net

Return to the main page