Microsoft IIS perl.exe HTTP Path Disclosure

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

# See:
# Date:  29 Dec 2001 18:53:39 -0000
# From: "antoan miroslavov" <[email protected]>
# To: [email protected]
# Subject: Active Perl path reveal
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(10120);
  script_version("1.41");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/28");

  script_cve_id("CVE-1999-0450");
  script_bugtraq_id(194);

  script_name(english:"Microsoft IIS perl.exe HTTP Path Disclosure");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by an information disclosure 
vulnerability.");
  script_set_attribute(attribute:"description", value:
"It was possible to obtain the physical location of a virtual web
directory of this host by issuing a request for a non-existent file
with an IISAPI-registered extension.

An attacker may use this flaw to gain more information about the remote
host, and hence make more focused attacks.");
  script_set_attribute(attribute:"solution", value:
"Configure the web server to check for the existence of a file before
it returns an error message.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"1999/01/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"1999/06/22");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:iis");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 1999-2024 Tenable Network Security, Inc.");

  script_dependencies("find_service1.nasl", "httpver.nasl", "http_version.nasl", "www_fingerprinting_hmap.nasl");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  exit(0);
}

#
# The script code starts here
#

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");

port = get_http_port(default:80);

banner = get_http_banner(port:port);
if ( "Microsoft-IIS" >!< banner ) exit(0);

res = http_send_recv3(method:"GET", item:"/scripts/no-such-file.pl", port:port);
if (isnull(res)) exit(1, "The web server on port "+port+" failed to respond.");

res[2] = tolower(res[2]);
if("perl script" >< res[2]) security_warning(port:port);