TippingPoint Zero Day Initiative

IBM Tivoli Storage Manager Express CAD Service Buffer Overflow Vulnerability

ZDI-07-054: September 24th, 2007


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5351. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of IBM Tivoli Storage Manager Express. Authentication is not required to exploit this vulnerability.

The specific flaw exists in the dsmcad.exe process bound by default on TCP port 1581. During HTTP header parsing, a host parameter of sufficient length will trigger an overflow through a call to vswprintf(). The call overflows into imported function pointers which are later called. Exploitation of this issue can result in arbitrary code execution.

Vendor Response

IBM has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2007-05-22 - Vulnerability reported to vendor
    2007-09-24 - Coordinated public release of advisory


This vulnerability was discovered by:
    Sebastian Apelt (webmaster@buzzworld.org)