Siemens InsydeH2O Out-of-bounds Write (CVE-2023-22613)

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

include('compat.inc');

if (description)
{
  script_id(501691);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/27");

  script_cve_id("CVE-2023-22613");

  script_name(english:"Siemens InsydeH2O Out-of-bounds Write (CVE-2023-22613)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel
5.0 through 5.5. It is possible to write to an attacker-controlled
address. An attacker could invoke an SMI handler with a malformed
pointer in RCX that overlaps SMRAM, resulting in SMM memory
corruption.

Insyde BIOS is typically used in RUGGEDCOM APE products 
and some SIMATIC devices. Please refer to the vendor advisory for a 
precise list of models concerned.

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.insyde.com/security-pledge");
  # https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?183afa88");
  script_set_attribute(attribute:"see_also", value:"https://www.insyde.com/security-pledge/SA-2023023");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/UI:N/S:C/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-2023-22613");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(787);

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/04/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/04/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/26");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:05.27.37");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:05.36.37");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:05.44.45");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:05.52.45");
  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) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Siemens');

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

var vuln_cpes = {
    "cpe:/a:insyde:insydeh2o:05.27.37" :
        {"versionEndIncluding" : "05.27.37", "versionStartIncluding" : "05.27.37", "family" : "APE1808"},
    "cpe:/a:insyde:insydeh2o:05.36.37" :
        {"versionEndIncluding" : "05.36.37", "versionStartIncluding" : "05.36.37", "family" : "APE1808"},
    "cpe:/a:insyde:insydeh2o:05.44.45" :
        {"versionEndIncluding" : "05.44.45", "versionStartIncluding" : "05.44.45", "family" : "APE1808"},
    "cpe:/a:insyde:insydeh2o:05.52.45" :
        {"versionEndIncluding" : "05.52.45", "versionStartIncluding" : "05.52.45", "family" : "APE1808"}
};

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