Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:
CVE-2023-45614, CVE-2023-45615, CVE-2023-45616, CVE-2023-45617, CVE-2023-45618, CVE-2023-45619, CVE-2023-45620, CVE-2023-45621, CVE-2023-45622, CVE-2023-45623, CVE-2023-45624: Enabling cluster-security via the cluster-security command will prevent the vulnerabilities from being exploited
CVE-2023-45625, CVE-2023-45626, CVE-2023-45627: The CLI and web-based management interfaces should be restricted to a dedicated layer 2 segment/VLAN and/or controlled by firewall policies at layer 3 and above
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
PRODUCT DESCRIPTION
SCALANCE W1750D is an Access Point that supports IEEE 802.11ac standards for high-performance WLAN, and is equipped with two dual-band radios, which can provide access and monitor the network simultaneously.
This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory.
Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.
Vulnerability CVE-2023-45614
There are buffer overflow vulnerabilities in the underlying CLI service 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.
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Vulnerability CVE-2023-45615
There are buffer overflow vulnerabilities in the underlying CLI service 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.
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Vulnerability CVE-2023-45616
There is a buffer overflow vulnerability in the underlying AirWave client service 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 this vulnerability results in the ability to execute arbitrary code as a privileged user on the underlying operating system.
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Vulnerability CVE-2023-45617
There are arbitrary file deletion vulnerabilities in the CLI service accessed by PAPI (Aruba's access point management protocol). Successful exploitation of these vulnerabilities result in the ability to delete arbitrary files on the underlying operating system, which could lead to the ability to interrupt normal operation and impact the integrity of the access point.
There are arbitrary file deletion vulnerabilities in the AirWave client service accessed by PAPI (Aruba's access point management protocol). Successful exploitation of these vulnerabilities result in the ability to delete arbitrary files on the underlying operating system, which could lead to the ability to interrupt normal operation and impact the integrity of the access point.
There is an arbitrary file deletion vulnerability in the RSSI service accessed by PAPI (Aruba's access point management protocol). Successful exploitation of this vulnerability results in the ability to delete arbitrary files on the underlying operating system, which could lead to the ability to interrupt normal operation and impact the integrity of the access point.
Unauthenticated Denial-of-Service (DoS) vulnerabilities exist in the CLI service accessed via the PAPI protocol. Successful exploitation of these vulnerabilities result in the ability to interrupt the normal operation of the affected access point.
Unauthenticated Denial-of-Service (DoS) vulnerabilities exist in the CLI service accessed via the PAPI protocol. Successful exploitation of these vulnerabilities result in the ability to interrupt the normal operation of the affected access point.
Unauthenticated Denial-of-Service (DoS) vulnerabilities exist in the BLE daemon service accessed via the PAPI protocol. Successful exploitation of these vulnerabilities result in the ability to interrupt the normal operation of the affected access point.
Unauthenticated Denial-of-Service (DoS) vulnerabilities exist in the Wi-Fi Uplink service accessed via the PAPI protocol. Successful exploitation of these vulnerabilities result in the ability to interrupt the normal operation of the affected access point.
An unauthenticated Denial-of-Service (DoS) vulnerability exists in the soft ap daemon accessed via the PAPI protocol. Successful exploitation of this vulnerability results in the ability to interrupt the normal operation of the affected access point.
Multiple authenticated command injection vulnerabilities exist in the command line interface. Successful exploitation of these vulnerabilities result in the ability to execute arbitrary commands as a privileged user on the underlying operating system.
CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Vulnerability CVE-2023-45626
An authenticated vulnerability has been identified allowing an attacker to effectively establish highly privileged persistent arbitrary code execution across boot cycles.
An authenticated Denial-of-Service (DoS) vulnerability exists in the CLI service. Successful exploitation of this vulnerability results in the ability to interrupt the normal operation of the affected access point.
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT:
https://www.siemens.com/cert/advisories
HISTORY DATA
V1.0 (2024-02-13):
Publication Date
V1.1 (2024-04-09):
Added fix for SCALANCE W1750D family
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