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CVE-2019-19135

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Date: March 16, 2020

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.

Language: C#

Severity Score

Related Resources (7)

https://github.com/eclipse/milo/commit/cac0e710bf2b8bed9c602fc597e9de1d8903abed
https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2019-19135.pdf
https://opcfoundation.org/security-bulletins/
https://github.com/eclipse/milo/security/advisories/GHSA-pq4w-qm9g-qx68
https://opcfoundation.org/security-bulletins
https://nvd.nist.gov/vuln/detail/CVE-2019-19135
https://www.mend.io/vulnerability-database/CVE-2019-19135

Severity Score

Weakness Type (CWE)

Use of Insufficiently Random Values

CWE-330

Insufficiently Protected Credentials

CWE-522

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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