CVE-2023-29054 Weak cryptography in SCALANCE X200-4P IRT

Q: Is CVE-2023-29054 being exploited?

There is no known exploitation of CVE-2023-29054 in the wild and no public exploit code.

Q: How do I fix CVE-2023-29054?

No fix has been published for CVE-2023-29054 yet. Limit exposure of the affected software until one is available.

Medium 6.7 Published 11 Apr 2023 Updated 7 Feb 2025

Weak SSH ciphers in Siemens SCALANCE switches allow man-in-the-middle attackers to read and modify network traffic.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-29054?

CVE-2023-29054 is a medium-severity vulnerability in Siemens SCALANCE X200-4P IRT, published on 11 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SIPLUS NET SCALANCE X202-2P IRT (All versions < V5.5.2). The SSH server on affected devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device.

Weakness: CWE-326

Which versions are affected by CVE-2023-29054?

It affects 13 products.

Products include Siemens Scalance X200-4p Irt Firmware, Siemens Scalance X201-3p Irt Firmware, Siemens Scalance X201-3p Irt Pro Firmware, Siemens Scalance X202-2irt Firmware, Siemens Scalance X202-2p Irt Firmware, Siemens Scalance X202-2p Irt Pro Firmware and 7 more.

How do I fix CVE-2023-29054?

No fix has been published for CVE-2023-29054 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-29054 being exploited?

There is no known exploitation of CVE-2023-29054 in the wild and no public exploit code.

Sources

Also known as GHSA-6488-g94h-5jh6.