Hanwha Vision NVR Buffer Overflow (CVE-2019-12223)

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

include('compat.inc');

if (description)
{
  script_id(502283);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/27");

  script_cve_id("CVE-2019-12223");

  script_name(english:"Hanwha Vision NVR Buffer Overflow (CVE-2019-12223)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The NVR can be rebooted via external attack continuously if it can be access via 
the public network. During the time, video transmission and recording will not be operated. 
Also, Exploiting the vulnerability is trivial and requires very low skill level. 

The listed NVR is vulnerable to allow remote attackers to cause a denial of service 
(such as system crash and reboot) using buffer overflow. The listed all models are 
currently discontinued. Nevertheless, Hanwha Techwin have released the patched firmware 
regarding SRN-472S, 473S, 873S, 1673S, 4000 models. 

However, SRN-1000, 1670D, 470D models will not be updated any more due to the date of 
discontinuation and End Of Life. 

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://www.hanwhavision.com/wp-content/uploads/2021/10/NVR-Vulnerability-Report-CVE-2019-12223_Update.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b75d430b");
  script_set_attribute(attribute:"solution", value:
"SRN-472S, 473S, 873S, 1673S, 4000 models, update NVR immediately with latest firmware. 
As SRN-1000, 1670D, 470D models have no patched firmware, NVR needs to be disconnected 
from the public network or be blocked from untrusted IPs using IP firewall.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-12223");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/26");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-1000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-1670d_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-470d_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-1673s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-873s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-473s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-472s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hanwhavision:srn-4000_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) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/HanwhaVision');

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

var vuln_cpes = {
    "cpe:/o:hanwhavision:srn-1000_firmware" :
        {"family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-1670d_firmware" :
        {"family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-470d_firmware" :
        {"family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-1673s_firmware" :
        {"versionEndIncluding" : "1.16", "family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-873s_firmware" :
        {"versionEndIncluding" : "1.16", "family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-473s_firmware" :
        {"versionEndIncluding" : "1.16", "family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-472s_firmware" :
        {"versionEndIncluding" : "1.16", "family" : "HanwhaVideoRecorders"},
    "cpe:/o:hanwhavision:srn-4000_firmware" :
        {"versionEndIncluding" : "2.20", "family" : "HanwhaVideoRecorders"}
};

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