PT-2008-6439 · Julian Field · Mailscanner

Raphael Geissert · Published 2008-12-03 · Updated 2010-12-28 · CVE-2008-5313

Positive Technologies (AI Summary)

CVSS v2.0

6.9

Medium

Base vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions MailScanner versions 4.68.8 through 4.74.16-1

Description The issue allows local users to overwrite arbitrary files via a symlink attack on certain temporary files used by various scripts, including those for autoupdate and wrapper functions in /etc/MailScanner/autoupdate/ and /etc/MailScanner/wrapper/, as well as scripts in /usr/share/MailScanner/MailScanner/ and the /usr/sbin/MailScanner executable. This could potentially be exploited by manipulating the configuration loaded from /etc/MailScanner/mailscanner.conf.with.mcp.

Recommendations For MailScanner versions 4.68.8 through 4.74.16-1, update to version 4.74.16-1 or later to resolve the issue. As a temporary workaround, consider restricting access to the vulnerable scripts and executables, such as those in /etc/MailScanner/autoupdate/, /etc/MailScanner/wrapper/, and /usr/share/MailScanner/MailScanner/, to minimize the risk of exploitation. Additionally, limit the ability to load or modify the /etc/MailScanner/mailscanner.conf.with.mcp configuration file.

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2008-5313

Affected Products

Mailscanner

References · 6

• http://secunia.com/advisories/33117 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2008-5313 · Security Note
• http://mailscanner.info/ChangeLog · Note
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=506353#44 · Note
• http://openwall.com/lists/oss-security/2008/11/29/1 · Note
• http://securityfocus.com/bid/32557 · Note