Microsoft Office PowerPoint contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. Updates are available.
Microsoft Office PowerPoint contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.
The vulnerability is due to improper processing of OfficeArt atom records in PowerPoint documents. An unauthenticated, remote attacker could exploit the vulnerability by convincing a user to view a malicious document. If successful, the attacker could execute arbitrary code on the system with the privileges of the user.
Microsoft has confirmed the vulnerability in a security bulletin and released software updates.
The following Microsoft Office applications are affected:
Microsoft Office PowerPoint XP SP3 and prior
Microsoft Office PowerPoint 2003 SP3 and prior
Microsoft Office PowerPoint 2007 SP2 and prior
Microsoft PowerPoint Viewer 2007 Service Pack 2
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2
Microsoft Office 2004 for Mac
Microsoft Office 2008 for Mac
Microsoft Office 2011 for Mac
Open XML File Format Converter for Mac
An attacker could not directly exploit the vulnerability and instead must rely on user interaction to accomplish an exploit. The attacker must convince a user to view a malicious document.
Attackers may provide documents to users as attachments to e-mail messages or by convincing a user to follow a malicious link to a file posted on a remote file share or website. By providing instructions or additional social engineering techniques, the attacker could make the user more interested in opening the provided document.
Microsoft has released a security bulletin at the following link: MS11-022
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on the system with the privileges of the user. If the user holds elevated privileges, the attacker could gain complete control over the system.
The vulnerability is due to the improper processing of OfficeArt atom records in PowerPoint documents.
An unauthenticated, remote attacker could exploit the vulnerability by convincing a user to view a malicious document. When opened, the document could trigger memory corruption that the attacker could take advantage of to execute arbitrary code on the system with the privileges of the user.
Administrators are advised to apply the appropriate updates.
Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.
Users may consider applying the Microsoft Office Isolated Conversion Environment (MOICE) to safely open Word, Excel, and PowerPoint files from suspicious or unrecognized sources on systems that are running Microsoft Office 2003 or Office 2007.
Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.
Administrators are advised to monitor critical systems.
Microsoft customers can obtain updates directly by using the links in the security bulletin. These updates are also distributed by Windows automatic update features and available on the Windows Update website. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.
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