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Vulnerability · Published Apr 29, 2020 · Assigned by ABB

CVE-2020-8475ABB Central Licensing System - Denial of Service Vulnerability

Medium 5.3

In plain English

A medium-severity improper input validation in ABB Ability™ SCADAvantage from ABB. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.2%top 32.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

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, ABB AbilityTM SCADAvantage versions 5.1 to 5.6.5, a weakness in validation of input exists that allows an attacker to block license handling by sending specially crafted messages to the CLS web service.

Affected products (as reported)

VendorProductVersions
ABB Central Licensing System 5.1 – before 5*
ABB ABB Ability System 800xA 5.16.06.1
ABB Compact HMI 5.16.0
ABB Control Builder Safe 1.01.12.0
ABB Symphony Plus S+ Operations 3 – through 3.2
ABB Symphony Plus S+ Engineering 1.1 – through 2.2
ABB Composer Harmony 5.16.06.1
ABB Composer Melody 5.36 – through 6.3
ABB Harmony OPC Server Standalone 6.06.17.0
ABB Advant OCS Control Builder A 1.31.4
ABB Composer CTK 6.16.2
ABB AdvaBuild 3.7 SP13.7 SP2
ABB OPC Server for Mod 300 (non-800xA) 1.4
ABB OPC Data Link 2.12.2
ABB Knowledge Manager 8.09.09.1
ABB Manufacturing Operations Management 18121909
ABB Advant OCS AC 100 OPS Server 5.16.06.1
ABB ABB Ability™ SCADAvantage 5.1 – before unspecifiedunspecified – through 5.6.5

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References