Signature Detail

SMTP: WordPerfect 5.x Document Download

This signature detects downloads of WordPerfect 5.x files through SMTP. A vulnerability exists in the WordPerfect 5.x converter. Attackers can send a malformed WordPerfect file in an e-mail message. If the user has Microsoft Office, Publisher, Works, FrontPage 2000 or higher installed, Microsoft Word attempts to open the document and the vulnerability can be triggered.

Extended Description

Microsoft WordPerfect Converter is reported prone to a remote buffer overflow vulnerability when handling malformed files. This vulnerability may allow a remote attacker to execute arbitrary code on a vulnerable computer to gain unauthorized access. To carry out an attack, the attacker may create a malicious file and entice a user to open the file through an application that employs WordPerfect Converter. Microsoft WordPerfect Converter is installed by default in various versions of Microsoft Office, Microsoft Word, Microsoft FrontPage, Microsoft Publisher, and Microsoft Works Suite. Microsoft Office 2003 Service Pack 1 is not affected by this vulnerability. This issue may be similar in nature to BID 8538 (Microsoft WordPerfect Converter Buffer Overrun Vulnerability).

Affected Products

• Microsoft FrontPage 2000 SP1
• Microsoft FrontPage 2000 SP2
• Microsoft FrontPage 2000 SR1
• Microsoft FrontPage 2000
• Microsoft FrontPage 2002 SP1
• Microsoft FrontPage 2002
• Microsoft FrontPage 2003
• Microsoft Office 2000 SP1
• Microsoft Office 2000 SP2
• Microsoft Office 2000 SP3
• Microsoft Office 2000
• Microsoft Office 2003
• Microsoft Office XP SP1
• Microsoft Office XP SP2
• Microsoft Office XP SP3
• Microsoft Office XP
• Microsoft Publisher 2000
• Microsoft Publisher 2002
• Microsoft Publisher 2003
• Microsoft Word 2000 SP2
• Microsoft Word 2000 SP3
• Microsoft Word 2000 SR1
• Microsoft Word 2000 Sr1a
• Microsoft Word 2000
• Microsoft Word 2002 SP1
• Microsoft Word 2002 SP2
• Microsoft Word 2002
• Microsoft Word 2003
• Microsoft Works 2000
• Microsoft Works Suite 2001
• Microsoft Works Suite 2002
• Microsoft Works Suite 2003
• Microsoft Works Suite 2004

References

• BugTraq: 11172
• CVE: CVE-2004-0573
• URL: http://www.microsoft.com/technet/security/bulletin/ms04-027.mspx