[REVS] Microsoft PCT Exploit Analysis

From: SecuriTeam (support_at_securiteam.com)
Date: 10/04/04

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      Microsoft PCT Exploit Analysis
    ------------------------------------------------------------------------

    SUMMARY

    The paper linked below provides an extensive analysis to the Microsoft PCT
    Vulnerability patched in MS04-011. David Schulhoff's paper focuses on
    <http://www.securiteam.com/windowsntfocus/5CP0L0KCKO.html> THC's exploit,
    and provides an excellent tutorial on exploits in general, with thorough
    examples.

    DETAILS

    Abstract:
    On the second Tuesday, what many now refer to as patch Tuesday , of April,
    2004, Microsoft released four security bulletins. Among these was
    <http://www.microsoft.com/technet/security/bulletin/MS04-011.mspx>
    Microsoft Security Bulletin MS04-011 which detailed fourteen separate
    vulnerabilities, six of them rated critical for one or more Windows
    operating systems. In the list of the vulnerability identifiers in the
    Technical Details section of the bulletin is the PCT Vulnerability which
    is also referenced as CAN-2003-07191 on the Common Vulnerabilities and
    Exposures website. PCT is referred to variously within Security Bulletin
    MS04-011 as the Private Communications Transport or Private Communication
    Technology protocol. For the purposes of this paper David Schulhoff
    selected this vulnerability and a corresponding exploit to examine in
    detail. We will take a look at both what makes this vulnerability a
    classic opportunity for exploitation and how its unique characteristics
    provide an insight into some basic security principles. David Schulhoff
    takes the approach of an individual seeking to take advantage of this
    opportunity , and then look at two different scenarios of organizations
    dealing with an incident caused by an attack on the PCT vulnerability.

    ADDITIONAL INFORMATION

    The whitepaper can be found at:
    <http://www.thc.org/root/docs/exploit_analysis/SSL_PCT_EXPLOITATION_ANALYSIS.PDF> http://www.thc.org/root/docs/exploit_analysis/SSL_PCT_EXPLOITATION_ANALYSIS.PDF

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