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Secunia Research: McAfee E-Business Server Auth Packet Handling Buffer Overflow

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                     Secunia Research 31/10/2007

  - McAfee E-Business Server Auth Packet Handling Buffer Overflow -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software

McAfee E-Business Server for Linux version 8.1.1.

NOTE: Other versions may also be affected. However, while the usage is
identical between the Linux and Windows versions of E-Business server,
Windows is not vulnerable due to the differing socket implementations.

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2) Severity

Rating: Moderately critical
Impact: Local network
Where:  System compromise

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3) Vendor's Description of Software

"McAfee E-Business Server secures batch processes and protects
sensitive company data and network traffic with 128-bit encryption
and authentication, everywhere it is accessed, transferred, and
stored".

Product Link:
http://www.mcafee.com/us/enterprise/products/encryption/ebusiness_server.html

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in McAfee E-Business
Server, which can be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to an integer overflow within the
e-Business administration utility service when parsing authentication
packets. This can be exploited to cause a heap-based buffer overflow
via a specially crafted authentication packet with an overly large
length value.

Successful exploitation allows execution of arbitrary code.

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5) Solution

Install E-Business Server 8.5.3 for Solaris
Install E-Business Server 8.1.2 for Linux, HP-UX, AIX

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6) Time Table

13/08/2007 - Vendor notified.
13/08/2007 - Vendor response.
31/10/2007 - Public disclosure.

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7) Credits

Discovered by Dyon Balding, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2007-2957 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

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10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2007-69/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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