Auth bypass in Abb Ability™ Symphony® Plus Historian

CVE-2020-24675

In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.

Vulnerability class: Broken Authentication

EPSS: 0.004 (62.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-24675?
CVE-2020-24675 is a critical-severity vulnerability in Abb Ability™ Symphony® Plus Historian, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-12-22.
How severe is CVE-2020-24675?
Critical severity. CVSS v3 base score is 9.8 out of 10.