Vulnerability Description
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to create a denial-of-service condition against the application. Was ZDI-CAN-10295.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Opcfoundation | Unified Architecture .Net-Standard | <= 1.04.358.30 |
Related Weaknesses (CWE)
References
- https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20BulletVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-536/Third Party AdvisoryVDB Entry
- https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20BulletVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-536/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2020-8867?
CVE-2020-8867 is a vulnerability with a CVSS score of 7.5 (HIGH). This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit t...
How severe is CVE-2020-8867?
CVE-2020-8867 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8867?
Check the references section above for vendor advisories and patch information. Affected products include: Opcfoundation Unified Architecture .Net-Standard.