Description
The Internet Mail Service in Exchange Server 5.5 and Exchange 2000 allows remote attackers to cause a denial of service (memory exhaustion) by directly connecting to the SMTP service and sending a certain extended verb request, possibly triggering a buffer overflow in Exchange 2000.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
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MS03-046 Exchange 2000 XEXCH50 Heap Overflow
exploit/windows/smtp/ms03_046_exchange2000_xexch50
Exploit-DB 2
- Microsoft Exchange Server 2000 - XEXCH50 Heap Overflow (MS03-046) (Metasploit) EDB-16820 · remote · Nov 11, 2010 · verified
- Microsoft Exchange Server 2000 - XEXCH50 Heap Overflow (PoC) (MS03-046) EDB-113 · dos · Oct 22, 2003 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- CA-2003-27 third-party-advisory
- 20031022 MS03-046 Microsoft Exchange 2000 Heap Overflow mailing-list
- VU#422156 third-party-advisory
- MS03-046 vendor-advisory
- 8838 vdb-entry