Date Discovered October 9, 2012
Description Microsoft Word is prone to a remote code-execution vulnerability.
An attacker can exploit this issue to execute arbitrary code in the context of the currently logged-in user, which can lead to a complete compromise of an affected computer.
- Microsoft Office Compatibility Pack SP2
- Microsoft Office Compatibility Pack SP3
- Microsoft Office SharePoint Server 2010
- Microsoft Office Web Apps
- Microsoft Office Web Apps 2010
- Microsoft Office Web Apps 2010 SP1
- Microsoft Word 2003
- Microsoft Word 2003 SP1
- Microsoft Word 2003 SP2
- Microsoft Word 2003 SP3
- Microsoft Word 2007
- Microsoft Word 2007 SP1
- Microsoft Word 2007 SP2
- Microsoft Word 2007 SP3
- Microsoft Word 2010
- Microsoft Word 2010 Service Pack 1 32-bit editions
- Microsoft Word 2010 Service Pack 1 64-bit editions
- Microsoft Word Viewer
Run all software as a nonprivileged user with minimal access rights. To mitigate the impact of a successful exploit, run the affected application as a user with minimal access rights.
Deploy network intrusion detection systems to monitor network traffic for malicious activity. Deploy NIDS to monitor network traffic for signs of suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.
Do not accept or execute files from untrusted or unknown sources. Never accept files from untrusted or unknown sources, because they may be malicious in nature. Avoid opening email attachments from unknown or questionable sources.
Implement multiple redundant layers of security.
Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploit attempts of memory-corruption vulnerabilities.
Vendor updates are available. Please see the references for details.
Credits An anonymous researcher, working with Beyond Security's SecuriTeam Secure Disclosure program.
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