Vulnerability Monitor

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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.

Published

2018-06-13T18:29:00.620

Last Modified

2024-11-21T04:12:21.850

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

6.8

Impact Score

2.9

Weaknesses

Type: Primary
CWE-320

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	opcfoundation	ua-.net-legacy	≤ 1.03.342	Yes
Application	opcfoundation	ua-.netstandard	≤ 1.03.352.10	Yes

References

http://www.securityfocus.com/bid/108688 ([email protected])
https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45 Patch, Third Party Advisory ([email protected])
https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150 Patch, Third Party Advisory ([email protected])
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/108688 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)