Advisory Details

July 15th, 2010

Ipswitch Imail Server Mailing List Remote Code Execution Vulnerability

ZDI-10-127
ZDI-CAN-737

CVE ID
CVSS SCORE 9, (AV:N/AC:L/Au:S/C:C/I:C/A:C)
AFFECTED VENDORS Ipswitch
AFFECTED PRODUCTS IMail
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10000. 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 IMail. Authentication might be required to exploit this vulnerability.

The specific flaw exists within imailsrv.exe which is invoked to handle messages sent to the imailsrv. When a message subject contains a "?Q?" operator the string following that sequence is copied to a local stack buffer. No validation of the data or data length is done.
In order to reach this code path a mailing list must be password protected (authentication required) or have previously had a password configured (no authentication required). A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the SYSTEM user.

VENDOR RESPONSE Ipswitch states:

Update to the latest version 11.02


DISCLOSURE TIMELINE
  • 2010-06-08 - Vulnerability reported to vendor
  • 2010-07-15 - Coordinated public release of advisory
CREDIT Anonymous
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