Description
Buffer overflow in gopher client for Microsoft Internet Explorer 5.1 through 6.0, Proxy Server 2.0, or ISA Server 2000 allows remote attackers to execute arbitrary code via a gopher:// URL that redirects the user to a real or simulated gopher server that sends a long response.
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 Internet Explorer 5/6 / Microsoft ISA Server 2000 / Microsoft Proxy Server 2.0 Gopher Client - Remote Buffer Overflow EDB-21510 · remote · Jul 27, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 4930 vdb-entry
- ie-gopher-bo(9247) vdb-entry
- 20020604 Buffer overflow in MSIE gopher code mailing-list
- 20020613 Microsoft releases critical fix that breaks their own software! mailing-list
- oval:org.mitre.oval:def:98 vdb-entry signature
- VU#440275 third-party-advisory
- MS02-027 vendor-advisory
- 20020613 Flawed workaround in MS02-027 -- gopher can run on _any_ port, not just 70 mailing-list
- http://www.pivx.com/workaround_fail.html