CVE-2020-24683 Authentication Bypass in Symphony Plus
Attackers can bypass authentication in ABB Symphony Plus Operations by exploiting client-side validation, allowing unauthorized server connections.
- 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-2020-24683?
CVE-2020-24683 is a critical authentication bypass vulnerability in ABB Ability™ Symphony® Plus Operations, published on 22 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application.
Which versions are affected by CVE-2020-24683?
It affects 2 products.
Products include Abb Symphony \+ Historian, Abb Symphony \+ Operations.
How do I fix CVE-2020-24683?
No fix has been published for CVE-2020-24683 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-2020-24683 being exploited?
There is no known exploitation of CVE-2020-24683 in the wild and no public exploit code.
Other vulnerabilities in ABB Ability™ Symphony® Plus Operations
Sources
Also known as GHSA-r3q7-7pwq-hqq8.