Siemens LOGO! 8 BM Devices Buffer Copy Without Checking Size of Input (CVE-2022-36361)

critical Tenable OT Security Plugin ID 501661

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions). Affected devices do not properly validate the structure of TCP packets in several methods. This could allow an attacker to cause buffer overflows, get control over the instruction counter and run custom code.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Siemens is preparing updates and recommends specific countermeasures for products where updates are not yet available:

- Only for versions prior to V8.3: Restrict access to port 10005/TCP to only trusted IP addresses.
- Only for versions including and since V8.3: Restrict access to port 8443/TCP to only trusted IP addresses.
- Restrict access to port 135/TCP to trusted IP addresses only.

As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following the recommendations in the product manuals.

Siemens has provided additional information on industrial security.

For more information, see the associated Siemens Security Advisory SSA-955858 in HTML or CSAF formats.

Plugin Details

Severity: Critical

ID: 501661

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 9/21/2023

Updated: 4/11/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2022-36361

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:siemens:logo%218_bm_fs-05_firmware, cpe:/o:siemens:logo%21_8_bm_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2022

Vulnerability Publication Date: 10/11/2022

Reference Information

CVE: CVE-2022-36361

CWE: 120

Detections

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