CVE-2020-24675
Weak Authentication in Symphony Plus
CRITICAL
9.8
CVSS Score
Published: December 22, 2020 at 09:22 PM UTC
Updated: June 17, 2026 at 03:05 AM UTC
2 products affected across 1 vendorSymphony + OperationsSymphony + Historian
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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.1 SP2 Rollup 2, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3 Service Pack 1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCMitigationVendor Advisory
Source: [email protected]
https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launchx_refsource_MISCMitigationVendor Advisory
Source: [email protected]
https://search.abb.com/library/Download.aspx?DocumentID=2PAA123982&LanguageCode=en&DocumentPartId=&Action=LaunchCVSS
9.8CRITICALABB
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-287
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