Check Point Advisories

Microsoft Visual Basic for Applications Insecure Library Loading (MS12-046; CVE-2012-1854)

Check Point Reference: CPAI-2012-263
Date Published: 10 Jul 2012
Severity: High
Last Updated: Sunday 24 November, 2024
Source: CVE-2012-1854
Protection Provided by:

Security Gateway
R70

  • R71
  • R75

    IPS-1
    IPS-1

  • IPS-1 NGX R65

    		•
    Who is Vulnerable? Microsoft Office 2003 Service Pack 3
    Microsoft Office 2007 Service Pack 2
    Microsoft Office 2007 Service Pack 3
    Microsoft Visual Basic for Applications
    Microsoft Visual Basic for Applications SDK
    Vulnerability Description A remote code execution vulnerability has been reported in Microsoft Visual Basic for Applications (VBA).
    Update/Patch AvaliableApply patches from: MS12-046
    Vulnerability DetailsThe vulnerability is due to an error in the way Microsoft VBA restricts the path used for loading external libraries. A remote attacker could exploit this issue by enticing a user to open a legitimate Microsoft Office-related file (such as a .docx file) that is located in the same network directory as a specially crafted dynamic link library (DLL) file. Successful exploitation will allow an attacker to execute arbitrary code on an affected system, in the security context of the logged on user.

    Protection Overview

    This protection will detect and block the transferring of malicious DLL files over a network share.

    In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, Protection tab and select the version of your choice.

    Security Gateway R75 / R71 / R70

    1. In the IPS tab, click Protections and find the Microsoft Visual Basic for Applications Insecure Library Loading (MS12-046) protection using the Search tool and Edit the protection's settings.
    2. Install policy on all modules.

    SmartView Tracker will log the following entries:
    Attack Name: Web Client Enforcement Violation
    Attack Information: Microsoft Visual Basic for Applications Insecure Library Loading (MS12-046)

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