Splunk Enterprise 5.0.x < 5.0.11 Multiple Vulnerabilities (POODLE)

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

include('compat.inc');

if (description)
{
  script_id(79721);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/06/23");

  script_cve_id("CVE-2014-3566", "CVE-2014-3567");
  script_bugtraq_id(70574, 70586);
  script_xref(name:"CERT", value:"577193");

  script_name(english:"Splunk Enterprise 5.0.x < 5.0.11 Multiple Vulnerabilities (POODLE)");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains an application that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its version number, the Splunk Enterprise hosted on the
remote web server is 5.0.x prior to 5.0.11. It is, therefore, affected
by the following vulnerabilities :

  - A man-in-the-middle (MitM) information disclosure
    vulnerability, known as POODLE, exists due to the way
    SSL 3.0 handles padding bytes when decrypting messages
    encrypted using block ciphers in cipher block chaining
    (CBC) mode. A MitM attacker can decrypt a selected byte
    of a cipher text in as few as 256 tries if they are able
    to force a victim application to repeatedly send the
    same data over newly created SSL 3.0 connections.
    (CVE-2014-3566)

  - A flaw exists in the included OpenSSL library due to
    handling session tickets that have not been properly
    verified for integrity. A remote attacker, by using a
    large number of invalid session tickets, can exploit
    this to cause a denial of service. (CVE-2014-3567)

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.splunk.com/view/SP-CAAANST");
  script_set_attribute(attribute:"see_also", value:"https://www.imperialviolet.org/2014/10/14/poodle.html");
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/~bodo/ssl-poodle.pdf");
  script_set_attribute(attribute:"see_also", value:"https://tools.ietf.org/html/draft-ietf-tls-downgrade-scsv-00");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Splunk Enterprise 5.0.11 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-3566");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/10/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/11/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/12/04");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2014-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("splunkd_detect.nasl", "splunk_web_detect.nasl");
  script_require_keys("installed_sw/Splunk");
  script_require_ports("Services/www", 8089, 8000);

  exit(0);
}

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

app = "Splunk";

get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:8000, embedded:TRUE);

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

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

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

# Affected : 5.0.x < 5.0.11
if (ver =~ "^5\.0\." && ver_compare(ver:ver,fix:"5.0.11",strict:FALSE) < 0)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  URL               : ' +install_url+
      '\n  Installed version : ' +ver+
      '\n  Fixed version     : 5.0.11\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url, ver);