Vulnerability CVE-2020-29457
Published: 2021-02-16

Description:
A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 allows attackers to establish a connection using invalid certificates.

Type:

CWE-295

 (Certificate Issues)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Opcfoundation -> Ua-.netstandard 

 References:
https://github.com/OPCFoundation/UA-.NETStandard
https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf
https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/
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