ZDI-06-003: Ipswitch Collaboration Suite Code Execution Vulnerability

[zdi-disclosures@xxxxxxxx]

ZDI-06-003: Ipswitch Collaboration Suite Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-06-003.html
March 13, 2006

-- CVE ID:
CVE-2005-3526

-- Affected Vendor:
Ipswitch

-- Affected Products:
Ipswitch Collaboration Suite 2006.02 and below

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since December 13, 2005 by Digital Vaccine protection
filter ID 3982. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Ipswitch Collaboration Suite.
Authentication is required to exploit this vulnerability.

This specific flaw exists within the IMAP daemon. A lack of bounds
checking during the parsing of long arguments to the FETCH verb can
result in an exploitable buffer overflow.

-- Vendor Response:
>From http://www.ipswitch.com/support/ics/updates/ics200603prem.asp:

"IMAP: Corrected a vulnerability issue where a properly crafted Fetch
command causes IMAP to crash with a buffer overflow (disclosed by
TippingPoint, a division of 3Com)." 

-- Disclosure Timeline:
2005.12.13 - Vulnerability reported to vendor
2005.12.13 - Digital Vaccine released to TippingPoint customers
2006.03.13 - Public release of advisory

-- Credit:
This vulnerability was discovered by Manuel Santamarina Suarez aka 
'FistFuXXer'.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.