copyright | disclaimer | privacy | contact  
Australia's Leading Computer Emergency Response Team
 
Search this site

 
On this site

 > HOME
 > About AusCERT
 > Membership
 > Contact Us
 > PKI Services
 > Publications
 > Sec. Bulletins
 > Conferences
 > News & Media
 > Services
 > Web Log
 > Site Map
 > Site Help
 > Member login





 

ESB-2007.0548 -- [Win] -- Ipswitch IMail Server 2006 IMAP Search Command Buffer Overflow Vulnerability

Date: 30 July 2007

Click here for printable version
Click here for PGP verifiable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                          ESB-2007.0548 -- [Win]
           Ipswitch IMail Server 2006 IMAP Search Command Buffer
                          Overflow Vulnerability
                               30 July 2007

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Ipswitch IMail Server 2006
Publisher:            iDefense
Operating System:     Windows
Impact:               Administrator Compromise
                      Execute Arbitrary Code/Commands
Access:               Existing Account
CVE Names:            CVE-2007-3925 CVE-2007-3927

Original Bulletin:
  http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=563

Revision History:     July 30 2007: Further CVE added
                      July 30 2007: Added CVE number
                      July 20 2007: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Ipswitch IMail Server 2006 Multiple IMAP Buffer Overflow Vulnerabilities

iDefense Security Advisory 07.18.07
http://labs.idefense.com/intelligence/vulnerabilities/
Jul 18, 2007

I. BACKGROUND

Ipswitch Inc.'s IMail Server is an e-mail server aimed at providing
easily configured and maintained e-mail services for small
organizations. More information is available on the vendor's site at
the following URL.

http://ipswitch.com/products/imail/index.asp

II. DESCRIPTION

Remote exploitation of multiple buffer overflow vulnerabilities in
Ipswitch Inc.'s IMail Server 2006 could allow attackers to execute
arbitrary code.

IMail includes an IMAP daemon that users can use to access their email.
The "Search" IMAP command contains an exploitable stack-based buffer
overflow vulnerability. Additionally, the "Search charset" contains an
exploitable heap-based buffer overflow vulnerability.

III. ANALYSIS

Exploitation allows an attacker to execute arbitrary code with SYSTEM
privileges.  

In order to exploit these issues, an attacker would need to login to a
vulnerable IMail IMAP Server using valid credentials.

The vulnerable component is installed with any IPSwitch product that
includes the IMail Server. This includes products such as its
Collaboration Suite packages.

IV. DETECTION

iDefense has confirmed the existence of these vulnerabilities in IMail
Server 2006. The vulnerable executable used was version 6.8.8.1 of
imapd32.exe.

V. WORKAROUND

Disabling the IMAP service prevents exploitation of these
vulnerabilities. Consider enabling POP3 or webmail as an alternative to
IMAP.

VI. VENDOR RESPONSE

Ipswitch Inc. has released version 2006.21 of its IMail product to
address these vulnerabilities. More information can be found at the
following URL.

http://docs.ipswitch.com/IMail%202006.21/ReleaseNotes/IMail_RelNotes.htm#NewRelease

VII. CVE INFORMATION

A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.

VIII. DISCLOSURE TIMELINE

02/13/2007  Initial vendor notification
07/17/2007  Initial vendor response
07/18/2007  Coordinated public disclosure

IX. CREDIT

The stack-based buffer overflow vulnerability was reported to iDefense
by Manuel Santamarina Suarez. The heap-based buffer overflow discoverer
wishes to remain anonymous.

Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php

Free tools, research and upcoming events
http://labs.idefense.com/

X. LEGAL NOTICES

Copyright © 2007 iDefense, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically,
please e-mail customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
 There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct,
indirect, or consequential loss or damage arising from use of, or
reliance on, this information.



- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBRq1M/ih9+71yA2DNAQJaWwP+OGBrH13dTZA+iXN2YwHQDOcYlKkOgL+Z
BBvozz9OBrUr/KQd78F+2SOY59XVd/vkMhM/eQkCsP4o5JKZPvx2ibVmeS6mvEIp
sjokt1aFU4aclDiW9ZqS+7gx2BWTA1NYc7nlWC2oOLeNORHX1Dbq4Qhy1ZsS5TC6
97wKm8CIfFE=
=qdG/
-----END PGP SIGNATURE-----