TPTI-07-16: CA BrightStor Hierarchical Storage Manager Buffer Overflow

Vulnerabilities

http://dvlabs.tippingpoint.com/advisory/TPTI-07-16.html

October 2, 2007

-- CVE ID:

CVE-2007-5082

-- Affected Vendor:

Computer Associates

-- Affected Products:

BrightStor Hierarchical Storage Manager r11.5

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability since October 2, 2007 by Digital Vaccine protection

filter ID 4922. For further product information on the TippingPoint IPS:

http://www.tippingpoint.com

-- Vulnerability Details:

These vulnerabilities allow a remote attacker to execute arbitrary code

on vulnerable installations of Computer Associates' BrightStor

Hierarchical Storage Manager. Authentication is not required to exploit

these vulnerabilities.

The specific flaws exist in the CsAgent service that listens by default

on TCP port 2000. An opcode parsing switch statement multiplexes data

funneling across various vulnerable routines. A user-supplied DWORD

size value is assumed by the vulnerable agent to contain the correct

length of the subsequent data and is passed directly to memory

allocation routines. At least 26 out of the available 68 opcodes are

vulnerable to various overflows that allow for remote code execution

due to insecure data copy operations, including: 0x01, 0x06 - 0x09,

0x0d, 0x10, 0x16 - 0x18, 0x1E, 0x1F, 0x21, 0x22, 0x26, 0x27, 0x29,

0x32, 0x36, 0x38, 0x3A - 0x3C, 0x3E and 0x40.

-- Vendor Response:

http://supportconnectw.ca.com/public/bstorhsm/infodocs/bstorhsm-secnot.a
sp

-- Disclosure Timeline:

2006.11.01 - Vulnerability reported to vendor

2007.10.02 - Digital Vaccine released to TippingPoint customers

2007.10.02 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by Aaron Portnoy, TippingPoint DVLabs.

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