TippingPoint Zero Day Initiative

CA eTrust AntiVirus Server inoweb Buffer Overflow Vulnerability

ZDI-07-028: May 10th, 2007


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 4861. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Computer Associates AntiVirus Server. User interaction is not required to exploit this vulnerability.

The specific flaw exists in the authentication function of the inoweb service that listens by default on TCP port 12168. The function copies both the username and password into fixed-length stack buffers. If an attacker provides overly long values for these parameters, an exploitable buffer overflow occurs.

Vendor Response

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

Disclosure Timeline

    2006-11-06 - Vulnerability reported to vendor
    2007-05-10 - Coordinated public release of advisory


This vulnerability was discovered by:
    Tenable Network Security