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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(10380);
- script_version ("$Revision: 1.15 $");
-
-
- name["english"] = "rsh on finger output";
- name["francais"] = "rsh on finger output";
- script_name(english:name["english"], francais:name["francais"]);
-
- desc["english"] = "
- This plugin attempts to log into the remote host
- using rsh and uses the names given by the output
- of finger.
-
- Risk factor : High";
-
-
- desc["francais"] = "
- Ce plugin essaye de se logguer sur la machine distante
- en utilisant rsh et les noms donnΘs par la sortie
- de la commande finger";
-
-
- script_description(english:desc["english"], francais:desc["francais"]);
-
- summary["english"] = "attempts to log in using rsh";
- summary["francais"] = "essaye de se logguer en utilisant rsh";
-
- script_summary(english:summary["english"], francais:summary["francais"]);
-
- script_category(ACT_ATTACK);
-
-
- script_copyright(english:"This script is Copyright (C) 2000 Renaud Deraison",
- francais:"Ce script est Copyright (C) 2000 Renaud Deraison");
- family["english"] = "Gain a shell remotely";
- family["francais"] = "Obtenir un shell α distance";
- script_family(english:family["english"], francais:family["francais"]);
- script_dependencie("find_service.nes", "finger.nasl", "rsh.nasl");
- script_require_ports("Services/rsh", 514);
- script_require_keys("rsh/active");
- exit(0);
- }
-
-
- function login(port, name)
- {
- soc = open_priv_sock_tcp(dport:port);
- if(soc)
- {
- s1 = raw_string(0);
- s2 = name + raw_string(0) + name + raw_string(0) + "id" + raw_string(0);
- send(socket:soc, data:s1);
- send(socket:soc, data:s2);
- a = recv(socket:soc, length:1024);
- a = recv(socket:soc, length:1024);
- if(egrep(string:a, pattern:"^uid.*$"))
- {
- data = "It was possible to log into this host using the account '" + name +
- "' !" + string("\n") + "Either it is passwordless or the file " +
- "~/.rhosts is not configured properly." + string("\n") +
- "Here is the output of the command 'id' : " + string("\n") + string("\n") + a + string("\n") +
- "Solution : remove ~/.rhosts or set a password" + string("\n") +
- "Risk factor : High";
- security_hole(port:port, data:data);
- }
- close(soc);
- }
- }
-
- port = get_kb_item("Services/rsh");
- if(!port)port = 514;
- if(!get_port_state(port))exit(0);
-
- login(port:port, name:"root");
-
- #
- # these will most likely find backdoor rather
- # than real unconfigured systems
- #
- login(port:port, name:"toor");
- login(port:port, name:"bin");
- login(port:port, name:"daemon");
- login(port:port, name:"operator");
- login(port:port, name:"nobody");
- login(port:port, name:"adm");
- login(port:port, name:"ftp");
- login(port:port, name:"postgres");
- login(port:port, name:"gdm");
-
- finger_port = get_kb_item("Services/finger");
- if(!finger_port)finger_port = 79;
-
- if(!get_port_state(finger_port))exit(0);
- finger = open_sock_tcp(finger_port);
- if(!finger)exit(0);
- send(socket:finger, data:string("\r\n"));
- r = recv_line(socket:finger, length:1024);
- if(!r)exit(0);
- r = recv_line(socket:finger, length:1024);
-
- tested = " root toor bin daemon operator nobody adm ftp postgres gdm ";
-
- while(r)
- {
- s = strstr(r," ");
- r = r - s;
- pat = ".* " + r + " .*";
-
- if(!egrep(string:tested, pattern:pat))
- {
- tested = tested + " " + r + " ";
- login(name:r, port:port);
- }
- r = recv_line(socket:finger, length:1024);
- }
-
- close(finger);
-