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CVE-2020-25233 Hardcoded credentials in LOGO! 8 BM (incl. SIPLUS variants)

Medium 5.5 Published Updated

Attackers can extract the private RSA key from firmware to decrypt communication with Siemens LOGO! 8 BM devices.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-25233?

CVE-2020-25233 is a medium-severity vulnerability in Siemens LOGO! 8 BM (incl. SIPLUS variants), published on 14 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). The firmware update of affected devices contains the private RSA key that is used as a basis for encryption of communication with the device.

Weakness: CWE-321

Which versions are affected by CVE-2020-25233?

It affects 1 product.

Products include Siemens Logo\! 8 Bm Firmware.

How do I fix CVE-2020-25233?

No fix has been published for CVE-2020-25233 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-25233 being exploited?

There is no known exploitation of CVE-2020-25233 in the wild and no public exploit code.

Sources

Also known as GHSA-j892-5fgm-v8hw.

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