Description
Buffer overflow in the chunked encoding transfer mechanism in Internet Information Server (IIS) 4.0 and 5.0 Active Server Pages allows attackers to cause a denial of service or execute arbitrary code.
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 4
- Microsoft IIS 4.0/5.0 - Chunked Encoding Transfer Heap Overflow (4) EDB-21371 · remote · Apr 24, 2002 · verified
- Microsoft IIS 4.0/5.0 - Chunked Encoding Transfer Heap Overflow (2) EDB-21369 · remote · Apr 14, 2002 · verified
- Microsoft IIS 4.0/5.0 - Chunked Encoding Transfer Heap Overflow (1) EDB-21368 · remote · Apr 10, 2002 · verified
- Microsoft IIS 4.0/5.0 - Chunked Encoding Transfer Heap Overflow (3) EDB-21370 · remote · Apr 10, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- oval:org.mitre.oval:def:25 vdb-entry signature
- VU#610291 third-party-advisory
- oval:org.mitre.oval:def:16 vdb-entry signature
- 4485 vdb-entry
- MS02-018 vendor-advisory
- 20020410 Windows 2000 and NT4 IIS .ASP Remote Buffer Overflow mailing-list
- iis-asp-chunked-encoding-bo(8795) vdb-entry
- CA-2002-09 third-party-advisory
- 20020415 Microsoft IIS Vulnerabilities in Cisco Products - MS02-018 vendor-advisory