Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2020-12510 | First vendor Publication | 2020-11-19 |
Vendor | Cve | Last vendor Modification | 2020-12-03 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H | |||
---|---|---|---|
Overall CVSS Score | 7.3 | ||
Base Score | 7.3 | Environmental Score | 7.3 |
impact SubScore | 5.9 | Temporal Score | 7.3 |
Exploitabality Sub Score | 1.3 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | Required |
Scope | Unchanged | Confidentiality Impact | High |
Integrity Impact | High | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:M/Au:S/C:P/I:P/A:P) | |||
---|---|---|---|
Cvss Base Score | 6 | Attack Range | Network |
Cvss Impact Score | 6.4 | Attack Complexity | Medium |
Cvss Expoit Score | 6.8 | Authentication | Requires single instance |
Calculate full CVSS 2.0 Vectors scores |
Detail
The default installation path of the TwinCAT XAR 3.1 software in all versions is underneath C:\TwinCAT. If the directory does not exist it and further subdirectories are created with permissions which allow every local user to modify the content. The default installation registers TcSysUI.exe for automatic execution upon log in of a user. If a less privileged user has a local account he or she can replace TcSysUI.exe. It will be executed automatically by another user during login. This is also true for users with administrative access. Consequently, a less privileged user can trick a higher privileged user into executing code he or she modified this way. By default Beckhoff’s IPCs are shipped with TwinCAT software installed this way and with just a single local user configured. Thus the vulnerability exists if further less privileged users have been added. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12510 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-276 | Incorrect Default Permissions |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 1 |
Sources (Detail)
Source | Url |
---|---|
CONFIRM | https://cert.vde.com/en-us/advisories/vde-2020-037 |
Alert History
Date | Informations |
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2021-05-04 13:47:14 |
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2021-04-22 02:58:57 |
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2020-12-03 21:23:20 |
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2020-11-19 21:23:22 |
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