ABB Central Licensing System - Information disclosure

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• abb 800xa system5.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (ABB). Independent of NVD's CPE analysis and usually ahead of it.

• ABB ABB Ability System 800xA

  • 5.1, 6.0, 6.1affected

• ABB AdvaBuild

  • 3.7 SP1, 3.7 SP2affected

• ABB Advant OCS AC 100 OPS Server

  • 5.1, 6.0, 6.1affected

• ABB Advant OCS Control Builder A

  • 1.3, 1.4affected

• ABB Central Licensing System

  • 5.1 and later · before 5*affected

• ABB Compact HMI

  • 5.1, 6.0affected

• ABB Composer CTK

  • 6.1, 6.2affected

• ABB Composer Harmony

  • 5.1, 6.0, 6.1affected

• ABB Composer Melody

  • 5.3affected
  • 6 and later · up to and including 6.3affected

• ABB Control Builder Safe

  • 1.0, 1.1, 2.0affected

• ABB Harmony OPC Server Standalone

  • 6.0, 6.1, 7.0affected

• ABB Knowledge Manager

  • 8.0, 9.0, 9.1affected

Other highest-scoring records for the same primary product.

• CVE-2020-8479ABB Central Licensing System - XML External Entity Injection
  40Plan
• CVE-2020-8471ABB Central Licensing System - Weak File Permissions
  31Monitor
• CVE-2020-8476ABB Central Licensing System - Elevation of Privilege Vulnerability
  30Monitor
• CVE-2020-8475ABB Central Licensing System - Denial of Service Vulnerability
  30Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.