Description
The SMTP service in Microsoft Internet Information Services (IIS) 4.0 and 5.0 allows remote attackers to bypass anti-relaying rules and send spam or spoofed messages via encapsulated SMTP addresses, a similar vulnerability to CVE-1999-0682.
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.
Exploit-DB 1
- Microsoft IIS 4.0/5.0 - SMTP Service Encapsulated SMTP Address (MS99-027) EDB-21613 · remote · Jul 12, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20020712 Portcullis Security Advisory - IIS Microsoft SMTP Service Encapsulated SMTP Address Vulnerability mailing-list
- iis-smtp-mail-relay(9580) vdb-entry
- 5213 vdb-entry