Joined: 12 May 2004
|Posted: Fri Apr 11, 2008 4:26 pm Post subject: [ GLSA 200804-11 ] policyd-weight: Insecure temporary file c
|Gentoo Linux Security Advisory
Title: policyd-weight: Insecure temporary file creation (GLSA 200804-11)
Date: April 11, 2008
policyd-weight uses temporary files in an insecure manner, allowing for a symlink attack.
policyd-weight is a Perl policy daemon for the Postfix MTA intended to eliminate forged envelope senders and HELOs.
Vulnerable: < 0.1.14.17
Unaffected: >= 0.1.14.17
Architectures: All supported architectures
Chris Howells reported that policyd-weight creates and uses the "/tmp/.policyd-weight/" directory in an insecure manner.
A local attacker could exploit this vulnerability to delete arbitrary files or change the ownership to the "polw" user via symlink attacks.
Set " $LOCKPATH = '/var/run/policyd-weight/' " manually in "/etc/policyd-weight.conf".
All policyd-weight users should upgrade to the latest version:
This version changes the default path for sockets to "/var/run/policyd-weight", which is only writable by a privileged user. Users need to restart policyd-weight immediately after the upgrade due to this change.
|# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/policyd-weight-0.1.14.17"