Signature Detail

HTTP: Microsoft Word Crafted Sprm Structure Stack Memory Corruption

This signature detects attempts to exploit a known memory corruption vulnerability in Microsoft Word products. It is due to improper handling of crafted record size in Word documents. An attacker can exploit this by persuading the target user to open a malicious Word document. A successful attack can allow for arbitrary code injection and execution with privileges of the currently logged on user. If successful, the behavior of the target depends on the intention of the attacker and the injected code is executed within the security context of the currently logged in user. In an unsuccessful code execution attack, the affected product terminates resulting in the loss of any unsaved data from the current session.

Extended 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. Failed exploit attempts will likely result in denial-of-service conditions.

Affected Products

• Microsoft Office Compatibility Pack 2007 SP1
• Microsoft Office Compatibility Pack 2007
• Microsoft Outlook 2007
• Microsoft Outlook 2007 SP1
• Microsoft Word 2000 SP3
• Microsoft Word 2002 SP3
• Microsoft Word 2003 SP2
• Microsoft Word 2003 SP3
• Microsoft Word 2007 SP1
• Microsoft Word 2007
• Microsoft Word Viewer
• Microsoft Word Viewer 2003 SP3
• Microsoft Works 8.5

References

• BugTraq: 32584
• CVE: CVE-2008-4837