Unraid < 7.2.4 Multiple Vulnerabilities (ZDI-26-171 / ZDI-26-172)

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

include('compat.inc');

if (description)
{
  script_id(303451);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/25");

  script_cve_id("CVE-2026-3838", "CVE-2026-3839");

  script_name(english:"Unraid < 7.2.4 Multiple Vulnerabilities (ZDI-26-171 / ZDI-26-172)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is running an application that is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of Unraid prior to 7.2.4. It is, therefore, affected by multiple
vulnerabilities:

  - A path traversal vulnerability exists in the update.php file due to the lack of proper validation
    of a user-supplied path prior to using it in file operations. An authenticated, remote attacker can
    exploit this to execute arbitrary code in the context of root. (CVE-2026-3838)

  - A path traversal vulnerability exists in the auth-request.php file due to the lack of proper
    validation of a user-supplied path prior to using it in authentications. An unauthenticated, remote
    attacker can exploit this to bypass authentication on the system. (CVE-2026-3839)

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.zerodayinitiative.com/advisories/ZDI-26-171/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-26-172/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Unraid version 7.2.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/UI:N/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-2026-3838");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/03/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/24");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:unraid:unraid");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("unraid_web_detect.nbin", "unraid_nix_installed.nbin");
  script_require_keys("installed_sw/Unraid");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Unraid', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'fixed_version': '7.2.4'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:result);