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ASB-2016.0021.2 - UPDATE [Win] McAfee Endpoint products: Unauthorised access - Existing account

Date: 08 March 2016

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===========================================================================
                         AUSCERT Security Bulletin

                              ASB-2016.0021.2
      A vulnerability has been identified in McAfee Endpoint products
                               8 March 2016

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              VirusScan Enterprise
                      McAfee Agent
                      Data Exchange Layer
                      Host Intrusion Prevention Service
                      Data Loss Prevention Endpoint
                      McAfee Device Control
                      Endpoint Security
                      McAfee Active Response
Operating System:     Windows
Impact/Access:        Unauthorised Access -- Existing Account
Resolution:           Patch/Upgrade
Member content until: Sunday, April  3 2016

Comment: McAfee advises exploit code for this vulnerability was released on 
         7th March 2016 and the risk associated to the present advisory has 
         consequently been raised from "Low" to "Medium".

Revision History:     March 8 2016: Exploit code released
                      March 4 2016: Initial Release

OVERVIEW

        A protected resource access bypass vulnerability has been identified
        in the McAfee Endpoint products listed below:
        
        VirusScan Enterprise 8.8 (VSE)
        McAfee Agent 5.x (MA) 
        Data Exchange Layer (DXL)
        Host Intrusion Prevention Service (Host IPS) 8.0
        Data Loss Prevention Endpoint (DLPe)
        McAfee Device Control (MDC)
        Endpoint Security (ENS) 10.0
        McAfee Active Response (MAR) [1]


IMPACT

        The vendor has provided the following information about the 
        vulnerabilities:
        
        "Multiple McAfee endpoint products include a private mechanism to 
        access settings and files protected by self-protection rules. This 
        mechanism is not sufficiently secure and may be misused to access 
        registry keys and files that should be protected from tampering.
        
        When VirusScan Enterprise (VSE) is present on the device, processes
        that attempt to use this private mechanism are scanned upon access.
        If the processes are not detected as malware, they could gain access
        to resources protected by McAfee products." [1]


MITIGATION

        The vendor recommends applying the relevant patches address this 
        issue. [1]


REFERENCES

        [1] Intel Security - Security Bulletin: Protected resource access
            bypass vulnerability resolved in multiple McAfee endpoint products
            for Microsoft Windows
            https://kc.mcafee.com/corporate/index?page=content&id=SB10151

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours 
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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