Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2020-12526 | First vendor Publication | 2021-05-13 |
| Vendor | Cve | Last vendor Modification | 2021-05-25 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | |||
|---|---|---|---|
| Overall CVSS Score | 5.3 | ||
| Base Score | 5.3 | Environmental Score | 5.3 |
| impact SubScore | 1.4 | Temporal Score | 5.3 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| Integrity Impact | None | Availability Impact | Low |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co. KG are vulnerable to denial of service attacks. The attacker needs to send several specifically crafted requests to the running OPC UA server. After some of these requests the OPC UA server is no longer responsive to any client. This is without effect to the real-time functionality of IPCs. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12526 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
Sources (Detail)
| Source | Url |
|---|---|
| CONFIRM | https://cert.vde.com/en-us/advisories/vde-2020-051 https://download.beckhoff.com/download/Document/product-security/Advisories/a... |
Alert History
| Date | Informations |
|---|---|
| 2021-05-25 21:23:16 |
|
| 2021-05-18 05:22:49 |
|
| 2021-05-13 21:23:11 |
|
