bugtraq - ZDI-08-028: IBM Lotus Sametime Community Services Multiplexer Stack Overflow Vulnerability

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Message-ID: <OFA529CAE0.AA175C1B-ON88257450.0078888D-86257450.00789A5A@3com.com>
Date: Wed, 21 May 2008 16:57:19 -0500
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Cc: zdi-disclosures@...m.com
Subject: ZDI-08-028: IBM Lotus Sametime Community Services Multiplexer Stack
 Overflow Vulnerability

ZDI-08-028: IBM Lotus Sametime Community Services Multiplexer Stack 
Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-028
May 21, 2008

-- Affected Vendors:
IBM

-- Affected Products:
IBM Lotus Sametime

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5607, 5698. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of IBM Lotus Sametime. Authentication is not
required to exploit this vulnerability.

The specific flaw exists in the handling of long URLs in the Community
Services Multiplexer (StMux.exe) listening on TCP port 1533. A specially
crafted URL can be passed into a vulnerable sscanf() function that will
result in a stack overflow resulting in the ability to execute arbitrary
code. 

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

http://www.ibm.com/support/docview.wss?rs=463&amp;uid=swg21303920

-- Disclosure Timeline:
2007-12-11 - Vulnerability reported to vendor
2008-05-21 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Manuel Santamarina Suarez

-- 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:

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