Splunk Enterprise 8.1 < 8.1.12, 8.2.0 < 8.2.9 (SVD-2022-1103)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(166926);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/02/17");

  script_cve_id("CVE-2022-43563");
  script_xref(name:"IAVA", value:"2022-A-0464-S");

  script_name(english:"Splunk Enterprise 8.1 < 8.1.12, 8.2.0 < 8.2.9 (SVD-2022-1103)");

  script_set_attribute(attribute:"synopsis", value:
"An application running on a remote web server host is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Splunk installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the SVD-2022-1103 advisory.

  - In Splunk Enterprise versions below 8.2.9 and 8.1.12, the way that the rex' search command handles field
    names lets an attacker bypass SPL safeguards for risky commands. The vulnerability requires the attacker
    to phish the victim by tricking them into initiating a request within their browser. The attacker cannot
    exploit the vulnerability at will. (CVE-2022-43563)

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-2022-1103.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cb6f5efa");
  script_set_attribute(attribute:"solution", value:
"For Splunk Enterprise, upgrade versions to 8.1.12, 8.2.9, 9.0.2, or higher. For Splunk Cloud Platform versions below
9.0.2203, Splunk is actively patching and monitoring the Splunk Cloud instances. To request an immediate upgrade,
determine which version of Splunk Cloud Platform you're running, then create a new support case.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:R/S:U/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-2022-43563");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(20);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/11/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/03");

  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", "splunk_nix_installed.nbin");
  script_require_keys("installed_sw/Splunk", "Settings/ParanoidReport");

  exit(0);
}

include('vcf.inc');
include('vcf_extras_splunk.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

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

var constraints = [
  { 'min_version' : '8.1', 'fixed_version' : '8.1.12', 'license' : 'Enterprise' },
  { 'min_version' : '8.2.0', 'fixed_version' : '8.2.9', 'license' : 'Enterprise' }
];
vcf::splunk::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);