Secunia

Sebastian Vandersee has reported a vulnerability in MailMarshal, which can be exploited by malicious people to compromise a vulnerable system.

An input validation error when unpacking tar archives can be exploited to extract files to arbitrary directories on the system (e.g. the "All Users" startup folder) via a file with a filename containing directory traversal modifiers in a tar archive.

The vulnerability is reported in version 6.2.1.3253 and reportedly also affects MailMarshal SMTP 5.x, 2006, and MailMarshal Exchange 5.x.

Solution
Apply patches (see vendor advisory for details).
Further details available in Customer Area

Provided and/or discovered by
Sebastian Vandersee

Original Advisory
MailMarshal:
http://marshal.com/kb/article.aspx?id=11780

Sebastian Vandersee:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065580.html

Deep Links
Links available in Customer Area