CVE-2023-29054 : Exploit Details and Defense Strategies

A vulnerability has been identified in multiple Siemens SCALANCE devices, allowing an unauthorized attacker to intercept and manipulate data due to weak SSH server cipher configurations.

Understanding CVE-2023-29054

This CVE discloses a security flaw in Siemens SCALANCE devices that could lead to unauthorized data interception and modification.

What is CVE-2023-29054?

The vulnerability in SCALANCE X series devices could enable a man-in-the-middle attack scenario due to the default configuration of offering weak ciphers by the SSH server.

The Impact of CVE-2023-29054

The weak cipher configuration could allow attackers to read and alter data transmitted between legitimate clients and the affected Siemens SCALANCE devices, posing a significant security risk.

Technical Details of CVE-2023-29054

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The vulnerability lies in the default setting of offering weak ciphers by the SSH server on affected SCALANCE X series devices, potentially enabling unauthorized interception and modification of data.

Affected Systems and Versions

Numerous Siemens SCALANCE X series devices are impacted, including SCALANCE X200-4P IRT, SCALANCE X201-3P IRT, SCALANCE X202-2IRT, SCALANCE X204IRT, and others, all with versions < V5.5.2.

Exploitation Mechanism

The vulnerability could be exploited by an attacker in a man-in-the-middle position, leveraging the weak cipher configurations to eavesdrop on and tamper with data exchanged over insecure connections.

Mitigation and Prevention

Learn how to address and prevent the CVE-2023-29054 vulnerability.

Immediate Steps to Take

It is crucial to update the affected Siemens SCALANCE devices to version V5.5.2 or higher to mitigate the vulnerability and enhance data security.

Long-Term Security Practices

Implement strong encryption protocols, regularly update devices and maintain network monitoring to bolster overall security posture.

Patching and Updates

Stay informed about security patches and updates released by Siemens to address vulnerabilities and protect SCALANCE devices from potential exploitation.