CVE-2020-8471 ABB Central Licensing System - Weak File Permissions
An authenticated attacker can exploit weak file permissions in ABB Central Licensing System to escalate privileges and execute arbitrary code.
- 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-2020-8471?
CVE-2020-8471 is a high-severity vulnerability in ABB Ability System 800xA, published on 29 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
For the Central Licensing Server component used in ABB products ABB Ability™ System 800xA and related system extensions versions 5.1, 6.0 and 6.1, Compact HMI versions 5.1 and 6.0, Control Builder Safe 1.0, 1.1 and 2.0, Symphony Plus -S+ Operations 3.0 to 3.2 Symphony Plus -S+ Engineering 1.1 to 2.2, Composer Harmony 5.1, 6.0 and 6.1, Melody Composer 5.3, 6.1/6.2 and SPE for Melody 1.0SPx (Composer 6.3), Harmony OPC Server (HAOPC) Standalone 6.0, 6.1 and 7.0, ABB Ability™ System 800xA/ Advant® OCS Control Builder A 1.3 and 1.4, Advant® OCS AC100 OPC Server 5.1, 6.0 and 6.1, Composer CTK 6.1 and 6.2, AdvaBuild 3.7 SP1 and SP2, OPCServer for MOD 300 (non-800xA) 1.4, OPC Data Link 2.1 and 2.2, Knowledge Manager 8.0, 9.0 and 9.1, Manufacturing Operations Management 1812 and 1909, weak file permissions allow an authenticated attacker to block the license handling, escalate his/her privileges and execute arbitrary code.
Which versions are affected by CVE-2020-8471?
It affects 3 products.
Products include Abb 800xa System, Abb Compact Hmi, Abb Control Builder Safe.
How do I fix CVE-2020-8471?
No fix has been published for CVE-2020-8471 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8471 being exploited?
There is no known exploitation of CVE-2020-8471 in the wild and no public exploit code.
Other vulnerabilities in ABB Ability System 800xA
- CVE-2020-8481 ABB Central Licensing System - Information disclosure
- CVE-2020-8479 ABB Central Licensing System - XML External Entity Injection
- CVE-2020-8475 ABB Central Licensing System - Denial of Service Vulnerability
- CVE-2020-8476 ABB Central Licensing System - Elevation of Privilege Vulnerability
Sources
Also known as GHSA-wwxr-688j-6wxx.