Title: Microsoft Exchange Base64 MIME Message Remote Code Execution Vulnerability
Severity: CRITICAL
Description:
Microsoft Exchange is prone to a remote code-execution vulnerability because the application fails to properly decode specially crafted email messages.
Specifically, this issue is triggered when Microsoft Exchange attempts to decode specially crafted base64- and MIME-encoded email message attachments. During the decoding process, attacker-supplied machine code may be executed.
Successfully exploiting this issue allows remote attackers to execute arbitrary code in the context of the vulnerable application, which may lead to a complete compromise of affected computers.
Affected Products:
- Avaya Messaging Application Server
- Avaya Messaging Application Server MM 2.0
- Avaya Messaging Application Server MM 3.0
- Avaya Messaging Application Server MM 3.1
- Microsoft Exchange Server 2000
- Microsoft Exchange Server 2000 SP1
- Microsoft Exchange Server 2000 SP2
- Microsoft Exchange Server 2000 SP3
- Microsoft Exchange Server 2003
- Microsoft Exchange Server 2003 SP1
- Microsoft Exchange Server 2003 SP2
- Microsoft Exchange Server 2007
References:
- Avaya: ASA-2007-191 MS07-026 Vulnerabilities in Microsoft Exchange Could Allow Remote C
- Microsoft: Exchange Server Home Page
- Microsoft: Microsoft Security Bulletin MS07-026
- US-CERT: Vulnerability Note VU#343145
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