CVE-2023-23906 Missing authorization in SkyBridge MB-A100/110

High 7.5 Published 10 May 2023 Updated 28 Jan 2025

Remote unauthenticated attackers can execute critical functions like rebooting the device due to missing authentication in SkyBridge firmware.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-23906?

CVE-2023-23906 is a high-severity missing authorization vulnerability in Seiko Solutions Inc. SkyBridge MB-A100/110, published on 10 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Missing authentication for critical function exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier, which may allow a remote unauthenticated attacker to execute some critical functions without authentication, e.g., rebooting the product.

Weakness: CWE-306

Which versions are affected by CVE-2023-23906?

It affects 2 products.

Products include Seiko-Sol Skybridge Mb-A100 Firmware, Seiko-Sol Skybridge Mb-A110 Firmware.

How do I fix CVE-2023-23906?

No fix has been published for CVE-2023-23906 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-23906 being exploited?

There is no known exploitation of CVE-2023-23906 in the wild and no public exploit code.

Sources

Also known as GHSA-w9q9-jw2h-8gp3.