Overview
- Description
- In OPC Foundation OPC UA .NET Standard codebase 1.4.357.28, servers do not create sufficiently random numbers in OPCFoundation.NetStandard.Opc.Ua before 1.4.359.31, which allows man in the middle attackers to reuse encrypted user credentials sent over the network.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.4
- Impact score
- 5.2
- Exploitability score
- 2.2
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5.8
- Impact score
- 4.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:P/A:N
Weaknesses
- nvd@nist.gov
- CWE-330
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:opcfoundation:netstandard.opc.ua:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2A04217C-169F-4EAD-B5E9-00BDBC3CB902",
"versionEndExcluding": "1.4.359.31"
},
{
"criteria": "cpe:2.3:a:opcfoundation:ua-.netstandard:1.4.357.28:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A096F383-A1CE-4395-BC11-E9F2E706F4EA"
}
],
"operator": "OR"
}
]
}
]