Siemens SCALANCE W1750D Buffer Overflow (CVE-2023-22784)

critical Tenable OT Security Plugin ID 502159

Synopsis

The remote OT asset is affected by a vulnerability.

Description

There are buffer overflow vulnerabilities in multiple underlying services that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of these vulnerabilities result in the ability to execute arbitrary code as a privileged user on the underlying operating system.

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Solution

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

Siemens has released update V8.10.0.6 for the affected products and recommends users update to the latest version.

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

- Restrict the command line interface and web-based management interfaces to a dedicated layer 2 segment/VLAN and/or control them by firewall policies at layer 3 and above.
- Block access to port UDP/8211 from untrusted networks.
- Enable cluster-security via the cluster-security command.

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

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage.

For more information see the associated Siemens security advisory SSA-843070 in HTML and CSAF.

Plugin Details

Severity: Critical

ID: 502159

File Name: tenable_ot_siemens_CVE-2023-22784.nasl

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 3/21/2024

Updated: 2/14/2026

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-2023-22784

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:scalance_w1750d_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2023

Vulnerability Publication Date: 10/10/2023

Reference Information

CVE: CVE-2023-22784

ICSA: 23-285-02

Detections

Analytics