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

high Tenable OT Security Plugin ID 501687

Synopsis

The remote OT asset is affected by a vulnerability.

Description

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.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 501687

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 9/26/2023

Updated: 4/22/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2022-34325

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:insyde:insydeh2o:5.5, cpe:/a:insyde:insydeh2o:5.2, cpe:/a:insyde:insydeh2o:5.3, cpe:/a:insyde:insydeh2o:5.4

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 11/14/2022

Vulnerability Publication Date: 11/14/2022

Reference Information

CVE: CVE-2022-34325

CWE: 367

Detections

Analytics