CVE-2020-24675 Weak Authentication in Symphony Plus

Critical 9.8 Published Updated

Unauthenticated attackers can inject values into the Operations History server, allowing them to write values to the controlled process.

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-2020-24675?

CVE-2020-24675 is a critical authentication bypass vulnerability in ABB Ability™ Symphony® Plus Historian, published on 22 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.

Weakness: CWE-287

Which versions are affected by CVE-2020-24675?

It affects 2 products.

Products include Abb Symphony \+ Historian, Abb Symphony \+ Operations.

How do I fix CVE-2020-24675?

No fix has been published for CVE-2020-24675 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-24675 being exploited?

There is no known exploitation of CVE-2020-24675 in the wild and no public exploit code.

Sources

Also known as GHSA-8g6h-grf2-7grg.

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