CVE-2018-7559

An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub commit 2018-04-12, and OPC UA .NET Legacy Stack and Sample Code before GitHub commit 2018-03-13. A vulnerability in OPC UA applications can allow a remote attacker to determine a Server's private key by sending carefully constructed bad UserIdentityTokens as part of an oracle attack.

CVSS v3.0 5.3 MEDIUM
CVSS v2.0 3.5 LOW

5.3^/10

CVSS v3.0 : MEDIUM

Vector : AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

3.5^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:M/Au:S/C:P/I:N/A:N

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf	Third Party Advisory
https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150	Patch Third Party Advisory
https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45	Patch Third Party Advisory
http://www.securityfocus.com/bid/108688

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:opcfoundation:ua-.netstandard::::::::
	cpe:2.3:a:opcfoundation:ua-.net-legacy::::::::

Information

Published : 2018-06-13 11:29

Updated : 2019-06-10 04:29

NVD link : CVE-2018-7559

Mitre link : CVE-2018-7559

JSON object : View

CWE

CWE-320

Key Management Errors

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Products Affected

opcfoundation

ua-.net-legacy
ua-.netstandard

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