From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Jan 28 2005 - 04:06:36 CST

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TITLE:
Winmail Server Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA14053

VERIFY ADVISORY:
http://secunia.com/advisories/14053/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Spoofing, Exposure of sensitive information,
System access

WHERE:
From remote

SOFTWARE:
Winmail Server 4.x
http://secunia.com/product/4370/
Winmail Server 3.x
http://secunia.com/product/2031/
Winmail Server 2.x
http://secunia.com/product/1595/

DESCRIPTION:
Tan Chew Keong has reported some vulnerabilities in Winmail Server,
which can be exploited by malicious users to disclose sensitive
information, use a vulnerable system for port scanning other hosts,
conduct script insertion attacks, or compromise a vulnerable system.

1) Input passed to the "filename" parameter in "download.php" is not
properly sanitised before being used to download files. This can be
exploited by authenticated users to disclose arbitrary files via
directory traversal attacks.

2) Input passed to the "filename" parameter in "upload.php" is not
properly sanitised before being used to upload files. This can be
exploited by authenticated users to upload files to arbitrary
locations via directory traversal attacks (e.g. PHP scripts).

3) Input passed to personal info in "userinfo.php" is not properly
sanitised before being used. This can be exploited to inject
arbitrary HTML and script code, which will be executed in an
administrator's browser session in context of an affected site when
the malicious user data is viewed via "/admin/user.php".

4) Some input validation errors in the handling of IMAP commands, can
be exploited by authenticated users to disclose arbitrary files and
mails, and create or remove arbitrary directories via directory
traversal attacks, using the "CREATE", "EXAMINE", "SELECT" and
"DELETE" commands.

5) The PORT command can be requested for arbitrary IP addresses,
which can be exploited to conduct port scanning of arbitrary hosts.

The vulnerabilities have been reported in version 4.0 (build 1112).
Other versions may also be affected.

SOLUTION:
Update to version 4.0 (build 1318).
http://www.magicwinmail.net/download.asp

PROVIDED AND/OR DISCOVERED BY:
Tan Chew Keong

ORIGINAL ADVISORY:
http://www.security.org.sg/vuln/magicwinmail40.html

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