CVE-2020-24681

Summary

Incorrect Permission Assignment for Critical Resource vulnerability in B&R Industrial Automation Automation Studio allows Privilege Escalation.This issue affects Automation Studio: from 4.6.0 through 4.6.X, from 4.7.0 before 4.7.7 SP, from 4.8.0 before 4.8.6 SP, from 4.9.0 before 4.9.4 SP.

Affected Software

VendorProductVersion RangeStatus
B&R Industrial AutomationAutomation Studio4.6.0 <= 4.6.xaffected
B&R Industrial AutomationAutomation Studio4.7.0 < 4.7.7 SPaffected
B&R Industrial AutomationAutomation Studio4.8.0 < 4.8.6 SPaffected
B&R Industrial AutomationAutomation Studio4.9.0 < 4.9.4 SPaffected
B&R Industrial AutomationNET/PVI4.6.0 <= 4.6.xaffected
B&R Industrial AutomationNET/PVI4.7.0 < 4.7.7affected
B&R Industrial AutomationNET/PVI4.8.0 < 4.8.6affected
B&R Industrial AutomationNET/PVI4.9.0 < 4.9.4affected

Weaknesses

  • CWE-732: CWE-732 Incorrect Permission Assignment for Critical Resource

Workarounds

B&R has identified the following specific workarounds and mitigations. Users of B&R Automation Studio and PVI may manually reconfigure permission settings on these services to allow modification only for privileged users. Additionally, it is recommended to limit access to the workstation running B&R Automation Studio and PVI to authorized users.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References