Splunk Enterprise Deployment Servers < 9.0 RCE

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

include('compat.inc');

if (description)
{
  script_id(164075);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/03/23");

  script_cve_id("CVE-2022-32158");
  script_xref(name:"IAVA", value:"2022-A-0251-S");

  script_name(english:"Splunk Enterprise Deployment Servers < 9.0 RCE");

  script_set_attribute(attribute:"synopsis", value:
"An application running on a remote web server host may be affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"Splunk Enterprise deployment servers in versions 8.1.x prior to 8.1.10.1, 8.2.x prior to 8.2.6.1, and 9.0 let clients
deploy forwarder bundles to other deployment clients through the deployment server. An attacker that compromised a
Universal Forwarder endpoint could use the vulnerability to execute arbitrary code on all other Universal Forwarder
endpoints subscribed to the deployment server.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.splunk.com/en_us/product-security/announcements/svd-2022-0608.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?33dc66b8");
  script_set_attribute(attribute:"solution", value:
"Upgrade Splunk Enterprise to version 8.1.0.1, 8.2.6.1, 9.0, or later.");
  script_set_attribute(attribute:"agent", value:"all");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-32158");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/06/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/06/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/08/11");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:splunk:splunk");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("splunkd_detect.nasl", "splunk_web_detect.nasl", "macos_splunk_installed.nbin", "splunk_win_installed.nbin");
  script_require_keys("installed_sw/Splunk", "Settings/ParanoidReport");

  exit(0);
}

# Only impacts deployment servers and we have no way of checking if the component is enabled.
# Base Splunk Enterprise is not affected
if (report_paranoia < 2) audit(AUDIT_PARANOID);

include('vcf_extras_splunk.inc');

var app_info = vcf::splunk::get_app_info();

var constraints = [
  { 'min_version' : '8.1', 'fixed_version' : '8.1.10.1', 'fixed_display': '8.1.10.1 / 9.0', 'license': 'Enterprise' },
  { 'min_version' : '8.2', 'fixed_version' : '8.2.6.1', 'license': 'Enterprise' }
];

vcf::splunk::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);