Test ID:	1.3.6.1.4.1.25623.1.0.60675
Category:	Ubuntu Local Security Checks
Title:	Ubuntu USN-593-1 (dovecot)
Summary:	Ubuntu USN-593-1 (dovecot)
Description:	The remote host is missing an update to dovecot announced via advisory USN-593-1. A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 6.10 Ubuntu 7.04 Ubuntu 7.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. Details follow: It was discovered that the default configuration of dovecot could allow access to any email files with group mail without verifying that a user had valid rights. An attacker able to create symlinks in their mail directory could exploit this to read or delete another user's email. (CVE-2008-1199) By default, dovecot passed special characters to the underlying authentication systems. While Ubuntu releases of dovecot are not known to be vulnerable, the authentication routine was proactively improved to avoid potential future problems. (CVE-2008-1218) Solution: The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: dovecot-common 1.0.beta3-3ubuntu5.6 dovecot-imapd 1.0.beta3-3ubuntu5.6 dovecot-pop3d 1.0.beta3-3ubuntu5.6 Ubuntu 6.10: dovecot-common 1.0.rc2-1ubuntu2.3 dovecot-imapd 1.0.rc2-1ubuntu2.3 dovecot-pop3d 1.0.rc2-1ubuntu2.3 Ubuntu 7.04: dovecot-common 1.0.rc17-1ubuntu2.3 dovecot-imapd 1.0.rc17-1ubuntu2.3 dovecot-pop3d 1.0.rc17-1ubuntu2.3 Ubuntu 7.10: dovecot-common 1:1.0.5-1ubuntu2.2 dovecot-imapd 1:1.0.5-1ubuntu2.2 dovecot-pop3d 1:1.0.5-1ubuntu2.2 After a standard system upgrade, additional dovecot configuration changes are needed. ATTENTION: Due to an unavoidable configuration update, the dovecot settings in /etc/dovecot/dovecot.conf need to be updated manually. During the update, a configuration file conflict will be shown. The default setting mail_extra_groups = mail should be changed to mail_privileged_group = mail. If your local configuration uses groups other than mail, you may need to use the new mail_access_groups setting as well. http://www.securityspace.com/smysecure/catid.html?in=USN-593-1 Risk factor : High
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2008-1199 Bugtraq: 20080304 Dovecot mail_extra_groups setting is often used insecurely (Google Search) http://www.securityfocus.com/archive/1/archive/1/489133/100/0/threaded http://www.dovecot.org/list/dovecot-news/2008-March/000061.html Debian Security Information: DSA-1516 (Google Search) http://www.debian.org/security/2008/dsa-1516 https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00358.html https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00381.html http://security.gentoo.org/glsa/glsa-200803-25.xml http://www.redhat.com/support/errata/RHSA-2008-0297.html SuSE Security Announcement: SUSE-SR:2008:020 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html http://www.ubuntulinux.org/support/documentation/usn/usn-593-1 BugTraq ID: 28092 http://www.securityfocus.com/bid/28092 http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10739 http://secunia.com/advisories/29226 http://secunia.com/advisories/29385 http://secunia.com/advisories/29396 http://secunia.com/advisories/29557 http://secunia.com/advisories/32151 http://secunia.com/advisories/30342 XForce ISS Database: dovecot-mailextragroups-unauth-access(41009) http://xforce.iss.net/xforce/xfdb/41009 Common Vulnerability Exposure (CVE) ID: CVE-2008-1218 Bugtraq: 20080312 rPSA-2008-0108-1 dovecot (Google Search) http://www.securityfocus.com/archive/1/archive/1/489481/100/0/threaded http://www.milw0rm.com/exploits/5257 http://www.dovecot.org/list/dovecot-news/2008-March/000065.html http://www.dovecot.org/list/dovecot-news/2008-March/000064.html http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0108 https://issues.rpath.com/browse/RPL-2341 BugTraq ID: 28181 http://www.securityfocus.com/bid/28181 http://secunia.com/advisories/29295 http://secunia.com/advisories/29364 XForce ISS Database: dovecot-tab-authentication-bypass(41085) http://xforce.iss.net/xforce/xfdb/41085
Copyright	Copyright (c) 2008 E-Soft Inc. http://www.securityspace.com

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