TITLE:
MailSite IMAP Service RENAME Command Directory Traversal

SECUNIA ADVISORY ID:
SA18318

VERIFY ADVISORY:
http://secunia.com/advisories/18318/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
MailSite 6.x
http://secunia.com/product/5898/

DESCRIPTION:
Josh Zlatin-Amishav has discovered a vulnerability in MailSite Email
Server, which can be exploit by malicious users to gain knowledge of
sensitive information.

The vulnerability is caused due to missing validation of the
parameters passed to the RENAME command of the IMAP service. This can
be exploited to rename the IMAP folders of other users, potentially
allowing a malicious user to read the emails of other users via
directory traversal attacks.

The vulnerability has been confirmed in version 6.1.22.0. Prior
versions may also be affected.

Note: It is also possible to enumerate user names due to differences
in messages returned from the Management Server (106/tcp).

SOLUTION:
Update to version 6.1.22.1
http://www.rockliffe.com/userroom/download.asp

PROVIDED AND/OR DISCOVERED BY:
Josh Zlatin-Amishav

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2006-January/040969.html
http://lists.grok.org.uk/pipermail/full-disclosure/2006-January/040970.html

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