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- #
- # This script was written by Renaud Deraison <deraison@cvs.nessus.org>
- #
- # See the Nessus Scripts License for details
- #
-
- if(description)
- {
- script_id(10203);
- script_version ("$Revision: 1.15 $");
- script_cve_id("CAN-1999-0618");
- name["english"] = "rexecd";
- script_name(english:name["english"]);
-
- desc["english"] = "
- The rexecd service is open. This service is design to
- allow users of a network to execute commands remotely.
-
-
- However, rexecd does not provide any good means of authentication, so it
- may be abused by an attacker to scan a third party host.
-
- Solution : comment out the 'exec' line in /etc/inetd.conf and restart the
- inetd process
-
- Risk factor : Medium";
-
- script_description(english:desc["english"]);
-
- summary["english"] = "Checks for the presence of rexecd";
-
- script_summary(english:summary["english"]);
-
- script_category(ACT_GATHER_INFO);
-
-
- script_copyright(english:"This script is Copyright (C) 1999 Renaud Deraison");
- family["english"] = "Useless services";
- script_family(english:family["english"]);
- script_dependencie("find_service.nes");
- script_require_ports("Services/rexecd", 512);
- exit(0);
- }
-
- #
- # The script code starts here
- #
- include("misc_func.inc");
-
-
- port = get_kb_item("Services/rexecd");
- if(!port){
- p = known_service(port:512);
- if(p && p != "rexecd")exit(0);
- port = 512;
- }
-
- if(get_port_state(port))
- {
- soc = open_sock_tcp(port);
- if(soc)
- {
- send(socket:soc, data:string("0", raw_string(0), "root", raw_string(0), "FOOBAR!", raw_string(0), "id", raw_string(0)));
- r = recv_line(socket:soc, length:4096);
- if ( ! r ) exit(0);
- if(ord(r[0]) == 1)security_warning(port);
- close(soc);
- }
- }
-