bugtraq - ZDI-08-026: CA BrightStor ARCserve Backup Remote Buffer Overflow

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Message-ID: <OFBFA8C53B.4013DCF7-ON8825744E.0078161B-8625744E.007907F6@3com.com>
Date: Mon, 19 May 2008 17:01:59 -0500
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Cc: zdi-disclosures@...m.com
Subject: ZDI-08-026: CA BrightStor ARCserve Backup Remote Buffer Overflow

ZDI-08-026: CA BrightStor ARCserve Backup Remote Buffer Overflow
http://www.zerodayinitiative.com/advisories/ZDI-08-026

-- CVE ID:
CVE-2008-2242

-- Affected Vendors:
Computer Associates

-- Affected Products:
Computer Associates BrightStor ARCserve Server

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 4931. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allws attackers to execute arbitrary code on
vulnerable installations of CA BrightStor ARCserve Backup for Linux.
User interaction is not required to exploit this vulnerability.

The specific flaw exists due to improper bounds checking in the
xdr_rwsstring() library function. By sending a long parameter into a
daemon using this function to process strings, a stack based buffer
overflow occurs, leading to execution of arbitrary code.

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

https://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=176798

-- Disclosure Timeline:
2006-09-12 - Vulnerability reported to vendor

-- Credit:
This vulnerability was discovered by:
    * Damian Put <pucik@...rflow.pl>

-- About the Zero Day Initiative (ZDI):
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a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

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used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
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altruistic aim of helping to secure a broader user base, TippingPoint
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vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

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