Fortinet Discovers Microsoft Office Project Vulnerability (MS09-074)
2009.December.08

Summary:

Fortinet's FortiGuard Labs Discovers Memory Corruption Vulnerability in
Microsoft Office Project.

Impact:

Remote Code Execution. 

Risk:

Critical. 

Affected Software:

For a list of operating system and product versions affected, please see the
Microsoft Bulletin reference below. 

Additional Information:

The vulnerability lies in "winproj.exe", which is used when processing a
Project file. A maliciously crafted document may contain a list structure
with a malformed element field, that when processed, will result in memory
corruption and allow a remote attacker to arbitrarily execute code on the
victims machine. 

Solutions:

*  Use the solution provided by Microsoft (MS09-074
<http://www.microsoft.com/technet/security/bulletin/ms09-074.mspx> ).
*  FortiGuard Labs released a signature
"MS.Project.Props.List.Memory.Corruption", which covers this specific
vulnerability.

FortiGuard Labs continues to monitor attacks against this vulnerability. 

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS)
service should be protected against this memory corruption vulnerability.
Fortinet's IPS service is one component of FortiGuard Subscription Services,
which also offer comprehensive solutions such as antivirus, Web content
filtering and antispam capabilities. These services enable protection
against threats on both application and network layers. FortiGuard Services
are continuously updated by FortiGuard Labs, which enables Fortinet to
deliver a combination of multi-layered security intelligence and true
zero-day protection from new and emerging threats. These updates are
delivered to all FortiGate, FortiMail and FortiClient products. Fortinet
strictly follows responsible disclosure guidelines to ensure optimum
protection during a threat's lifecycle. 

References: 

*  Microsoft Bulletin:
http://www.microsoft.com/technet/security/bulletin/ms09-074.mspx
*  CVE ID: CVE-2009-0102
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-0102> 


Acknowlegement: 

*  Bing Liu of Fortinet's FortiGuard Labs