Secunia Research Advisory

McAfee E-Business Server Auth Packet Handling Buffer Overflow


======================================================================

                     Secunia Research 31/10/2007

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

======================================================================
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

======================================================================
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.

======================================================================
2) Severity

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

======================================================================
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

======================================================================
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.

======================================================================
5) Solution

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

======================================================================
6) Time Table

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

======================================================================
7) Credits

Discovered by Dyon Balding, Secunia Research.

======================================================================
8) References

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

======================================================================
9) About Secunia

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

https://www.flexera.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.

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.

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

https://www.flexera.com/company/careers

Secunia offers a FREE mailing list called Secunia Security Advisories:

https://www.flexera.com/secunia_security_advisories/

======================================================================
10) Verification

Please verify this advisory by visiting the Secunia website:
https://www.flexera.com/about-us/secunia-research/advisories/sr-2007-69.html

Complete list of vulnerability reports published by Secunia Research:
https://www.flexera.com/about-us/secunia-research/advisories/

======================================================================