Description
3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.
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
- 3Com OfficeConnect DSL Router 812 1.1.7/840 1.1.7 - HTTP Port Router Denial of Service EDB-20847 · dos · Sep 21, 2001 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20010924 Regarding: 3Com OfficeConnect 812/840 Router DoS exploit code mailing-list
- 3com-officeconnect-http-dos(6573) vdb-entry
- 20010515 3COM OfficeConnect DSL router vulneratibilities mailing-list
- 20010921 3Com OfficeConnect 812/840 Router DoS exploit code mailing-list
- 2721 vdb-entry