github - ghsa-63jm-rmjc-h9qh

GHSA-63JM-RMJC-H9QH

Vulnerability from github – Published: 2022-05-24 22:28 – Updated: 2022-05-24 22:28

Details

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.

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{
"affected": [],
"aliases": [
"CVE-2020-12510"
],
"database_specific": {
"cwe_ids": [
"CWE-276"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-19T18:15:00Z",
"severity": "HIGH"
},
"details": "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\u2019s 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.",
"id": "GHSA-63jm-rmjc-h9qh",
"modified": "2022-05-24T22:28:17Z",
"published": "2022-05-24T22:28:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12510"
},
{
"type": "WEB",
"url": "https://cert.vde.com/en-us/advisories/vde-2020-037"
}
],
"schema_version": "1.4.0",
"severity": []
}

CVE-2020-12510 (GCVE-0-2020-12510)

Vulnerability from cvelistv5 – Published: 2020-11-19 17:07 – Updated: 2024-09-16 19:35

Title

Beckhoff: Privilege Escalation through TwinCat System

Summary

Severity ?

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-276 - Incorrect Default Permissions

Assigner

CERTVDE

References

URL

Tags

https://cert.vde.com/en-us/advisories/vde-2020-037

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Beckhoff	TwinCat XAR 3.1	Affected: all

Credits

Ayushman Dutta reported the issue to CERT@VDE

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-04T11:56:52.097Z",
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            "url": "https://cert.vde.com/en-us/advisories/vde-2020-037"
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        "title": "CVE Program Container"
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        }
      ],
      "metrics": [
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        }
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-63JM-RMJC-H9QH

CVE-2020-12510 (GCVE-0-2020-12510)

Tags

Sightings

Nomenclature