TippingPoint Zero Day Initiative

CA BrightStor ARCserve Backup Message Engine Buffer Overflow Vulnerability

ZDI-07-003: January 11th, 2007

CVE ID

Affected Vendors

Affected Products

Vulnerability Details

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

The specific flaws exists in the Message Engine RPC service which listens by default on TCP ports 6503 and 6504 with the following UUIDs:

dc246bf0-7a7a-11ce-9f88-00805fe43838
506b1890-14c8-11d1-bbc3-00805fa6962e

The service exposes buffer overflow vulnerabilities in the handlers for RPC opnums 0x2F and 0x75 that allow for arbitrary code execution when handling user-supplied data from the RPC request.

Vendor Response

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

Disclosure Timeline

    2006-11-08 - Vulnerability reported to vendor
    2007-01-11 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Tenable Network Security