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TITLE:
MailMarshal tar Archive Directory Traversal

SECUNIA ADVISORY ID:
SA26661

VERIFY ADVISORY:
http://secunia.com/advisories/26661/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
MailMarshal SMTP 5.x
http://secunia.com/product/2193/
MailMarshal SMTP 6.x
http://secunia.com/product/6032/
MailMarshal SMTP 2006
http://secunia.com/product/12557/
MailMarshal for Exchange 5.x
http://secunia.com/product/2194/

DESCRIPTION:
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).

MailMarshal SMTP:
Apply Marshal_Q11780.zip.
http://marshal.com/kb/attachments/Marshal_Q11780-GUIDb5cbc3d715f44ce39e6bd888376761b1.zip

MailMarshal Exchange:
Apply Marshal_Q11780_MMExchange.zip.
http://marshal.com/kb/attachments/Marshal_Q11780_MMExchange-GUID08d2b99aa6ba4d1cab2df56190b30b1e.zip

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

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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