Splunk Enterprise 9.2.0 < 9.2.10, 9.3.0 < 9.3.8, 9.4.0 < 9.4.6, 10.0 < 10.0.1 (SVD-2025-1203)

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

include('compat.inc');

if (description)
{
  script_id(277115);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/03");

  script_cve_id("CVE-2025-20384");
  script_xref(name:"IAVA", value:"2025-A-0899-S");

  script_name(english:"Splunk Enterprise 9.2.0 < 9.2.10, 9.3.0 < 9.3.8, 9.4.0 < 9.4.6, 10.0 < 10.0.1 (SVD-2025-1203)");

  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-2025-1203 advisory.

  - In Splunk Enterprise versions below 10.0.1, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions
    below 10.1.2507.4, 10.0.2503.6, and 9.3.2411.117.125, an unauthenticated attacker can inject American
    National Standards Institute (ANSI) escape codes into Splunk log files due to improper validation at the
    /en-US/static/ web endpoint. This may allow them to poison, forge, or obfuscate sensitive log data through
    specially crafted HTTP requests, potentially impacting log integrity and detection capabilities.
    (CVE-2025-20384)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://advisory.splunk.com/advisories/SVD-2025-1203.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade Splunk Enterprise to versions 10.0.1, 9.4.6, 9.3.8, 9.2.10, or higher.Splunk is actively monitoring and patching
Splunk Cloud Platform instances.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/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:L/PR:N/UI:N/S:U/C:N/I:L/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-2025-20384");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(117);

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/12/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/12/03");

  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:"generated_plugin", value:"current");
  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) 2025-2026 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' : '9.2.0', 'fixed_version' : '9.2.10', 'license' : 'Enterprise' },
  { 'min_version' : '9.3.0', 'fixed_version' : '9.3.8', 'license' : 'Enterprise' },
  { 'min_version' : '9.4.0', 'fixed_version' : '9.4.6', 'license' : 'Enterprise' },
  { 'min_version' : '10.0', 'fixed_version' : '10.0.1', 'license' : 'Enterprise' }
];
vcf::splunk::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);