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CVE-2020-25228 Missing authorization in LOGO! 8 BM (incl. SIPLUS variants)

Critical 9.8 Published Updated

An unauthenticated attacker with network access to port 10005 can gain full control of Siemens LOGO! 8 BM devices.

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-2020-25228?

CVE-2020-25228 is a critical missing authorization vulnerability in Siemens LOGO! 8 BM (incl. SIPLUS variants), published on 14 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). A service available on port 10005/tcp of the affected devices could allow complete access to all services without authorization. An attacker could gain full control over an affected device, if he has access to this service. The system manual recommends to protect access to this port.

Weakness: CWE-306

Which versions are affected by CVE-2020-25228?

It affects 1 product.

Products include Siemens Logo\! 8 Bm Firmware.

How do I fix CVE-2020-25228?

No fix has been published for CVE-2020-25228 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-2020-25228 being exploited?

There is no known exploitation of CVE-2020-25228 in the wild and no public exploit code.

Sources

Also known as GHSA-ch7j-5vw3-j293.

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