Cisco 675 router running CBOS allows unauthorized Telnet sessions
| cisco-cbos-telnet (4251) |  High Risk |
Description:
Cisco 675 DSL routers running CBOS (Cisco Broadband Operating System) in the default configuration are not password protected. Remote attackers can establish Telnet connections to the router without authentication.
Consequences:
Gain Access
Remedy:
To set passwords that will secure your router:
- Establish a telnet connection to your router. Refer to your router documentation.
- Type 'enable' to enter administration mode.
- Type 'set password exec clear NEWPASSWORD exec' to set the exec mode password.
- Type 'set password enable clear NEWPASSWORD enable' to set the superuser password.
References:
- BugTraq Mailing List, Sat, 31 Jul 1999 16:57:33 -0400: Cisco 675 password nonsense.
- CVE-1999-0571: A router's configuration service or management interface (such as a web server or telnet) is configured to allow connections from arbitrary hosts.
- CVE-1999-0889: Cisco 675 routers running CBOS allow remote attackers to establish telnet sessions if an exec or superuser password has not been set.
- OSVDB ID: 39: Cisco 675 Router Default Unpassworded Account
Platforms Affected:
- Cisco 675 Router
Reported:
Jul 31, 1999
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