Description
cosign-bin/cosign.cgi in Cosign 2.0.2 and earlier allows remote authenticated users to perform unauthorized actions as an arbitrary user by using CR (\r) sequences in the service parameter to inject LOGIN and REGISTER commands with the desired username.
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
- Cosign 2.0.1/2.9.4a - CGI Register Command Remote Authentication Bypass EDB-29844 · webapps · Apr 11, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20070411 Cosign SSO Authentication Bypass mailing-list
- 24845 third-party-advisory
- ADV-2007-1359 vdb-entry
- http://www.umich.edu/~umweb/software/cosign/cosign-vuln-2007-002.txt