Vulnerabilities > CVE-2013-4649 - Cross-site Scripting vulnerability in Dotnetnuke

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

include("compat.inc");

if (description)
{
  script_id(69400);
  script_version("1.10");
  script_cvs_date("Date: 2019/11/27");

  script_cve_id("CVE-2013-4649");
  script_bugtraq_id(61770);

  script_name(english:"DNN (DotNetNuke) __dnnVariable Parameter XSS");
  script_summary(english:"Attempts a non-persistent XSS.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains an ASP.NET application that is affected
by a cross-site scripting vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of DNN installed on the remote host is affected by a
cross-site scripting vulnerability due to a failure to properly
sanitize user-supplied input to the ' __dnnVariable' parameter. An
unauthenticated, remote attacker can exploit this, via a specially
crafted request, to inject arbitrary HTML and script code into a
user's browser to be executed within the security context of the
affected site.

Note that the application is reportedly also affected by an additional
cross-site scripting issue as well as a redirect error that can lead
to phishing attacks; however, Nessus has not tested for these
additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://packetstormsecurity.com/files/122792/dotnetnuke710-xss.txt");
  script_set_attribute(attribute:"see_also", value:"http://www.dnnsoftware.com/Platform/Manage/Security-Bulletins");
  script_set_attribute(attribute:"solution", value:
"Upgrade to DNN version 6.2.9 / 7.1.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");
  script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/08/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/08/16");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:dotnetnuke:dotnetnuke");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("dotnetnuke_detect.nasl");
  script_require_keys("installed_sw/DNN");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

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

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

install = get_single_install(
  app_name : app,
  port     : port
);

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

# Make sure it looks vulnerable by examining /js/dnncore.js
res = http_send_recv3(
  method : "GET",
  port   : port,
  item   : dir + "/js/dnncore.js",
  exit_on_fail : TRUE
);
exploit = FALSE;
if (
  ("dnn.getVar('__dnn_pageload')" >< res[2]) ||
  ('dnn.getVar("__dnn_pageload")' >< res[2])
)
{
  xss_test = "{'__dnn_pageload':'alert(/"+SCRIPT_NAME+"-" +unixtime() + "/)'}";
  xss_expected = str_replace(string:xss_test, find:"'", replace:"`");
  xss_expected = str_replace(string:xss_expected,find:"}",replace:"");

  exploit = test_cgi_xss(
    port     : port,
    dirs     : make_list(dir),
    cgi      : '/',
    qs       : '__dnnVariable=' + xss_test,
    pass_str : 'value="`' + xss_expected,
    pass_re  : 'id="__dnnVariable'
  );
}

if (!exploit)
{
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url);
}

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

include("compat.inc");

if (description)
{
  script_id(70294);
  script_version("1.11");
  script_cvs_date("Date: 2019/11/27");

  script_cve_id("CVE-2013-3943", "CVE-2013-4649", "CVE-2013-7335");
  script_bugtraq_id(61770, 61809);

  script_name(english:"DNN (DotNetNuke) < 6.2.9 / 7.1.1 Multiple Vulnerabilities");
  script_summary(english:"Checks the version of DNN.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains an ASP.NET application that is affected
by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of DNN installed on the remote host is affected by
multiple vulnerabilities :

  - The application is affected by a persistent cross-site
    scripting vulnerability because input to the
    'Display Name' in the 'Manage Profile' view is not
    properly sanitized. (CVE-2013-3943)

  - The application is affected by a cross-site scripting
    vulnerability because user-supplied input to the
    '__dnnVariable' parameter is not properly sanitized.
    (CVE-2013-4649)

  - An unspecified open redirect flaw exists that can
    allow an attacker to perform a phishing attack by
    enticing a user to click on a malicious URL.
    (CVE-2013-7335)

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://www.dnnsoftware.com/community/security/security-center");
  script_set_attribute(attribute:"solution", value:
"Upgrade to DNN version 6.2.9 / 7.1.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/08/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/03");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:dotnetnuke:dotnetnuke");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("dotnetnuke_detect.nasl");
  script_require_keys("installed_sw/DNN");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

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

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

install = get_single_install(
  app_name : app,
  port     : port,
  exit_if_unknown_ver : TRUE
);

dir = install['path'];
version = install['version'];

install_url = build_url(qs:dir, port:port);

if (version =~ '(^6(\\.2)?$)|(^7(\\.1)?$)')
  audit(AUDIT_VER_NOT_GRANULAR, app, port, version);

fix = NULL;

# Versions less than 6.2.9 / 7.1.1 are vulnerable
if (version =~ "^[0-5]\.")
  fix = "6.2.9 / 7.1.1";
else if (version =~ "^6\." && (ver_compare(ver:version, fix:'6.2.9', strict:FALSE) == -1))
  fix = "6.2.9";
else if (version =~ "^7\." && (ver_compare(ver:version, fix:'7.1.1', strict:FALSE) == -1))
  fix = "7.1.1";

if (!isnull(fix))
{
  set_kb_item(name:"www/"+port+"/XSS", value:TRUE);
  if (report_verbosity > 0)
  {
    report =
      '\n  URL               : ' +install_url+
      '\n  Installed version : ' +version+
      '\n  Fixed version     : ' +fix+ '\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url, version);