TippingPoint Zero Day Initiative

Advantech SUSIAccess Server Static Encryption Key Privilege Escalation Vulnerability

ZDI-16-629: December 13th, 2016


CVSS Score

Affected Vendors

Affected Products

    SUSIAccess Server

Vulnerability Details

This vulnerability allows attackers to escalate privileges on vulnerable installations of Advantech SUSIAccess Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within encryption and storage of the administrator password. The password is stored in a known location and is encrypted with a static encryption key. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM.

Vendor Response

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

Disclosure Timeline

    2016-08-30 - Vulnerability reported to vendor
    2016-12-13 - Coordinated public release of advisory


This vulnerability was discovered by: