Detections
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GLSA-200803-25 : Dovecot: Multiple vulnerabilities
medium Nessus Plugin ID 31612
Synopsis
The remote Gentoo host is missing one or more security-related patches.Description
The remote host is affected by the vulnerability described in GLSA-200803-25 (Dovecot: Multiple vulnerabilities)Dovecot uses the group configured via the 'mail_extra_groups' setting, which should be used to create lockfiles in the /var/mail directory, when accessing arbitrary files (CVE-2008-1199). Dovecot does not escape TAB characters in passwords when saving them, which might allow for argument injection in blocking passdbs such as MySQL, PAM or shadow (CVE-2008-1218).
Impact :
Remote attackers can exploit the first vulnerability to disclose sensitive data, such as the mail of other users, or modify files or directories that are writable by group via a symlink attack. Please note that the 'mail_extra_groups' setting is set to the 'mail' group by default when the 'mbox' USE flag is enabled.
The second vulnerability can be abused to inject arguments for internal fields. No exploitation vectors are known for this vulnerability that affect previously stable versions of Dovecot in Gentoo.
Workaround :
There is no known workaround at this time.
Solution
All Dovecot users should upgrade to the latest version:# emerge --sync # emerge --ask --oneshot --verbose '>=net-mail/dovecot-1.0.13-r1' This version removes the 'mail_extra_groups' option and introduces a 'mail_privileged_group' setting which is handled safely.
See Also
Plugin Details
Severity: Medium
ID: 31612
File Name: gentoo_GLSA-200803-25.nasl
Version: 1.16
Type: local
Family: Gentoo Local Security Checks
Published: 3/19/2008
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.6
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:gentoo:linux:dovecot, cpe:/o:gentoo:linux
Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/18/2008
Reference Information
CVE: CVE-2008-1199, CVE-2008-1218