Security World: [NT] Vulnerability in Crystal Reports for Visual Studio Allows Code Execution (MS07-052)

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Vulnerability in Crystal Reports for Visual Studio Allows Code Execution
(MS07-052)
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SUMMARY

A vulnerability could allow remote code execution if a user opens a
specially crafted RPT file.

Users whose accounts are configured to have fewer user rights on the
system could be less impacted than users who operate with administrative
user rights.

DETAILS

Affected and Non-Affected Software:
* Visual Studio .NET 2002 Service Pack 1
* Visual Studio .NET 2003
* Visual Studio .NET 2003 Service Pack 1
* Visual Studio 2005
* Visual Studio 2005 Service Pack 1

Non-Affected Software:
* Microsoft Office Outlook 2003 with Business Contact Manager
* Microsoft Office Outlook 2007 with Business Contact Manager

Crystal Reports RPT Processing Vulnerability:

A remote code execution vulnerability exists in the way Crystal Reports
for Visual Studio handles malformed RPT files. An attacker could exploit
the vulnerability by sending an affected user a malformed RPT file as an
e-mail attachment, or hosting the file on a malicious or compromised Web
site.

An attacker who successfully exploited this vulnerability could gain the
same user rights as the local user. Users whose accounts are configured to
have fewer user rights on the system could be less impacted than users who
operate with administrative user rights.

To view this vulnerability as a standard entry in the Common
Vulnerabilities and Exposures list, see
<http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6133>
CVE-2006-6133.

Mitigating Factors for Crystal Reports RPT Processing Vulnerability:
Mitigation refers to a setting, common configuration, or general
best-practice, existing in a default state, that could reduce the severity
of exploitation of a vulnerability. The following mitigating factor may be
helpful in your situation:

* An attacker who successfully exploited this vulnerability could gain
the same user rights as the local user. Users whose accounts are
configured to have fewer user rights on the system could be less impacted
than users who operate with administrative user rights.

* In default configurations, RPT files are not registered to open with
Crystal Reports for Visual Studio. Without the association, RPT files will
not open using the affected software component when the user double-clicks
on them.

Workarounds for Crystal Reports RPT Processing Vulnerability:
Workaround refers to a setting or configuration change that does not
correct the underlying vulnerability but would help block known attack
vectors before you apply the update. Microsoft has tested the following
workarounds and states in the discussion whether a workaround reduces
functionality:

* Remove the Crystal Reports for Visual Studio feature from Visual Studio

Removing the Crystal Reports for Visual Studio feature will prevent users
from opening Crystal Reports files.

Use Add/Remove Programs
1. Click Start, click Control Panel, click Add/Remove Programs.
2. Find your installation of Visual Studio and select it.
3. Click Add/Remove Features.
4. Uncheck the box next to Crystal Reports for Visual Studio.
5. Click Update to remove the feature.

Use the original installation media
1. Insert the original installation CD for Visual Studio into your drive.
2. Wait for the setup menu to appear. Click Add/Remove Features.
3. Uncheck the box next to Crystal Reports for Visual Studio.
4. Click Update to remove the feature.