Dahua Security Network Video Recorders Improper Input Validation (CVE-2024-39945)

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

include('compat.inc');

if (description)
{
  script_id(502846);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/21");

  script_cve_id("CVE-2024-39945");

  script_name(english:"Dahua Security Network Video Recorders Improper Input Validation (CVE-2024-39945)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability has been found in Dahua products. After obtaining the
administrator's username and password, the attacker can send a
carefully crafted data packet to the interface with vulnerabilities,
causing the device to crash.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
# script_set_attribute(attribute:"see_also", value:"https://www.dahuasecurity.com/aboutUs/trustedCenter/details/768");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/C:N/I:N/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:H/UI:N/S:U/C:N/I:N/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-2024-39945");

  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:"2024/07/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/07/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/02/12");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:nvr4x_firmware");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/DahuaSecurity");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/DahuaSecurity');

var asset = tenable_ot::assets::get(vendor:'DahuaSecurity');

var vuln_cpes = {
    "cpe:/o:dahuasecurity:nvr4x_firmware" :
        {"versionEndExcluding" : "2023-12-13", "family" : "DahuaSecurityVideoRecorders"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);