Nortel Contivity HTTP Server cgiproc Arbitrary File Access

2000-01-17T00:00:00
ID OSVDB:7583
Type osvdb
Reporter John Daniele(jdaniele@kpmg.ca)
Modified 2000-01-17T00:00:00

Description

Vulnerability Description

Nortel Contivity's HTTP server contains a flaw that may allow a malicious user to view arbitrary files due a lack of authentication. The issue is triggered when a file known to be on the server is specified using the Nocfile argument in the cgiproc script. The cgiproc script fails to authenticate the attacker therefore allowing the attacker read access to the file resulting in a loss of confidentiality.

Solution Description

Upgrade to version highern than 2.6, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s): Disable HTTP as a managment protocol from the private side of the switch.

Short Description

Nortel Contivity's HTTP server contains a flaw that may allow a malicious user to view arbitrary files due a lack of authentication. The issue is triggered when a file known to be on the server is specified using the Nocfile argument in the cgiproc script. The cgiproc script fails to authenticate the attacker therefore allowing the attacker read access to the file resulting in a loss of confidentiality.

Manual Testing Notes

http://[victim]/manage/cgi/cgiproc?Nocfile=/name/and/path/of/file

References:

Related OSVDB ID: 1201 Packet Storm: http://packetstormsecurity.org/0001-exploits/nortel.htm Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2000-01/0236.html ISS X-Force ID: 4316 CVE-2000-0064 Bugtraq ID: 938