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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.TENABLE_OT_SIEMENS_CVE-2022-34325.NASL
HistorySep 26, 2023 - 12:00 a.m.

Siemens InsydeH2O Time-of-check Time-of-use Race Condition (CVE-2022-34325)

2023-09-2600:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
6
siemens
insydeh2o
time-of-check
time-of-use
race condition
cve-2022-34325
dma transactions
storagesecuritycommanddxe
smi handler
smram corruption
toctou attack
insyde engineering
ruggedcom ape
simatic devices
vendor advisory
tenable.ot
scanner

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

AI Score

7.7

Confidence

High

EPSS

0

Percentile

12.6%

DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the StorageSecurityCommandDxe driver could cause SMRAM corruption.
This issue was discovered by Insyde engineering based on the general description provided by

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.

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

include('compat.inc');

if (description)
{
  script_id(501687);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/22");

  script_cve_id("CVE-2022-34325");

  script_name(english:"Siemens InsydeH2O Time-of-check Time-of-use Race Condition (CVE-2022-34325)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"DMA transactions which are targeted at input buffers used for the
StorageSecurityCommandDxe software SMI handler could cause SMRAM
corruption through a TOCTOU attack. DMA transactions which are
targeted at input buffers used for the software SMI handler used by
the StorageSecurityCommandDxe driver could cause SMRAM corruption.
This issue was discovered by Insyde engineering based on the general
description provided by

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/SA-2022057");
  script_set_attribute(attribute:"see_also", value:"https://www.insyde.com/security-pledge");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/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:H/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-2022-34325");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(367);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/11/14");
  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:5.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:5.3");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:5.4");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:insyde:insydeh2o:5.5");
  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) 2023-2024 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:5.3" :
        {"versionEndExcluding" : "5.36.23", "versionStartIncluding" : "5.3", "family" : "APE1808"},
    "cpe:/a:insyde:insydeh2o:5.2" :
        {"versionEndExcluding" : "5.27.23", "versionStartIncluding" : "5.2", "family" : "APE1808"},
    "cpe:/a:insyde:insydeh2o:5.4" :
        {"versionEndExcluding" : "5.44.23", "versionStartIncluding" : "5.4", "family" : "APE1808"},
    "cpe:/a:insyde:insydeh2o:5.5" :
        {"versionEndExcluding" : "5.52.23", "versionStartIncluding" : "5.5", "family" : "APE1808"}
};

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

AI Score

7.7

Confidence

High

EPSS

0

Percentile

12.6%

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