Detections
Analytics

Siemens InsydeH2O Missing Release of Memory after Effective Lifetime (CVE-2022-35894)

medium Tenable OT Security Plugin ID 501697

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The SMI handler for the FwBlockServiceSmm driver uses an untrusted pointer as the location to copy data to an attacker- specified buffer, leading to information disclosure.

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.

See Also

https://www.insyde.com/security-pledge

https://www.insyde.com/security-pledge/SA-2022030

https://binarly.io/advisories/BRLY-2022-018/index.html

Plugin Details

Severity: Medium

ID: 501697

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 9/26/2023

Updated: 9/27/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:N/A:N

CVSS Score Source: CVE-2022-35894

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.4

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

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

Vulnerability Information

CPE: cpe:/a:insyde:insydeh2o:5.0, cpe:/a:insyde:insydeh2o:5.1, cpe:/a:insyde:insydeh2o:5.2, cpe:/a:insyde:insydeh2o:5.3, cpe:/a:insyde:insydeh2o:5.4, cpe:/a:insyde:insydeh2o:5.5

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/22/2022

Vulnerability Publication Date: 9/22/2022

Reference Information

CVE: CVE-2022-35894

CWE: 401