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saintSAINT CorporationSAINT:4803B559F004700B61948D2D9DB54C3D
HistoryJan 16, 2012 - 12:00 a.m.

Microsoft Office ClickOnce Unsafe Execution

2012-01-1600:00:00
SAINT Corporation
download.saintcorporation.com
22

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.97 High

EPSS

Percentile

99.7%

Added: 01/16/2012
CVE: CVE-2012-0013
BID: 51284
OSVDB: 78207

Background

ClickOnce is a deployment technology that allows developers to create self-updating Windows-based applications that can be installed and run with minimal user interaction. A ClickOnce application is any Windows Presentation Foundation (.xbap), Windows Forms (.exe), console application (.exe), or Office solution (.dll) published using ClickOnce technology.

Problem

ClickOnce application file types are not part of the Windows Packager unsafe file type list. An attacker may embed malicious ClickOnce application installer inside Microsoft Office documents.

Resolution

Apply the security update specified by Microsoft Security Bulletin MS12-005.

References

<http://technet.microsoft.com/en-us/security/bulletin/ms12-005&gt;

Limitations

This exploit targets the Power Point application. Power Point may not be present in all systems that may contain other vulnerable Office components. This exploit was tested against Microsoft PowerPoint 2007 SP3 on Windows XP SP3 English (DEP OptIn) and Windows 7 SP1 (DEP OptIn).

Platforms

Windows

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.97 High

EPSS

Percentile

99.7%