pppBLOG 'search.php' Cross Site Scripting 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

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103136");
  script_version("2023-12-13T05:05:23+0000");
  script_tag(name:"last_modification", value:"2023-12-13 05:05:23 +0000 (Wed, 13 Dec 2023)");
  script_tag(name:"creation_date", value:"2011-03-31 17:03:50 +0200 (Thu, 31 Mar 2011)");
  script_name("pppBLOG 'search.php' Cross Site Scripting Vulnerability");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/47068");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");

  script_tag(name:"qod_type", value:"remote_analysis");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_dependencies("find_service.nasl", "no404.nasl", "webmirror.nasl", "DDI_Directory_Scanner.nasl", "gb_php_http_detect.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"summary", value:"pppBLOG is prone to a cross-site scripting vulnerability because it
  fails to properly sanitize user-supplied input before using it in dynamically generated content.");

  script_tag(name:"impact", value:"An attacker may leverage this issue to execute arbitrary script code
  in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker
  to steal cookie-based authentication credentials and launch other attacks.");

  script_tag(name:"affected", value:"pppBLOG 0.3.0 is vulnerable. Other versions may also be affected.");

  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:"solution_type", value:"WillNotFix");
  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("list_array_func.inc");
include("misc_func.inc");

port = http_get_port( default:80 );
if( ! http_can_host_php( port:port ) ) exit( 0 );

vt_strings = get_vt_strings();

foreach dir( make_list_unique( "/pppblog", "/blog", http_cgi_dirs( port:port ) ) ) {

  if( dir == "/" ) dir = "";
  buf = http_get_cache(item:dir + "/index.php", port:port);
  if(!buf || buf !~ "^HTTP/1\.[01] 200" || ('content="pppBLOG' >!< buf && 'src="scripts/sb_javascript.js' >!< buf))
    continue;

  url = string(dir, "/search.php?q=<script>alert('", vt_strings["lowercase"], "')</script>");

  if( http_vuln_check( port:port, url:url, pattern:"Search results for.*<script>alert\('" + vt_strings["lowercase"] + "'\)</script>", check_header:TRUE ) ) {
    report = http_report_vuln_url( port:port, url:url );
    security_message( port:port, data:report );
    exit( 0 );
  }
}

exit( 99 );