opcfoundation/ua-.netstandard · Security
OPC UA applications can allow a remote attacker to determine a Server's private key
- GHSA ID
- GHSA-gr4c-5rq6-cgh3
- CVE ID
- CVE-2018-7559
- Severity
- medium
- Published
- Updated
- CVSS
- 5.3 · CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 5.3 · CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Description
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.
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-7559 ↗
- https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45 ↗
- https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150 ↗
- https://github.com/advisories/GHSA-gr4c-5rq6-cgh3 ↗
- https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf ↗
- http://www.securityfocus.com/bid/108688 ↗