TippingPoint Zero Day Initiative

ARRIS VAP2500 Management Portal Authentication Bypass Vulnerability

ZDI-14-388: November 25th, 2014


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 13562. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of ARRIS VAP2500. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of user authentication. The issue lies in the failure to compare the password when authenticating. An attacker can leverage this vulnerability to bypass authentication checks which can then be chained to execute code with root privileges.

Vendor Response

ARRIS states:

Vendor has released a hotfix to address the issue: FW08.41

Disclosure Timeline

    2014-04-29 - Vulnerability reported to vendor
    2014-11-25 - Coordinated public release of advisory


This vulnerability was discovered by:
    Ricky "HeadlessZeke" Lawshae