ZDI-07-069: CA BrightStor ARCserve Backup Message Engine Insecure Method 
Exposure Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-069.html
November 26, 2007

-- CVE ID:
CVE-2007-5328

-- Affected Vendor:
Computer Associates

-- Affected Products:
BrightStor ARCserve Backup r11.5
BrightStor ARCserve Backup r11.1
BrightStor ARCserve Backup r11.0
BrightStor Enterprise Backup r10.5
BrightStor ARCserve Backup v9.01

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5144. 
For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows attackers to arbitrarily access and modify the
file system and registry of vulnerable installations of Computer
Associates BrightStor ARCserve Backup. Authentication is not required
to exploit this vulnerability.

The specific flaws exists in the Message Engine RPC service which
listens by default on TCP port 6504 with the following UUID:

    506b1890-14c8-11d1-bbc3-00805fa6962e

The service exposes a number of insecure method calls including: 0x17F,
0x180, 0x181, 0x182, 0x183, 0x184, 0x185, 0x186, 0x187, 0x188, 0x189,
0x18A, 0x18B, and 0x18C. Attackers can leverage these methods to
manipulate both the file system and registry which can result in a
complete system compromise.

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

http://supportconnectw.ca.com/public/storage/infodocs/basb-secnotice.asp

-- Disclosure Timeline:
2007.01.12 - Vulnerability reported to vendor
2007.11.26 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Tenable Network Security.

-- About the Zero Day Initiative (ZDI):
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    http://www.zerodayinitiative.com

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