Vulnerability-Lookup

GHSA-PV38-9Q3C-3QQ8

Vulnerability from github – Published: 2022-05-24 17:01 – Updated: 2022-05-24 17:01

Details

When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-5636"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-11-21T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal.",
  "id": "GHSA-pv38-9q3c-3qq8",
  "modified": "2022-05-24T17:01:46Z",
  "published": "2022-05-24T17:01:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5636"
    },
    {
      "type": "WEB",
      "url": "https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed"
    },
    {
      "type": "WEB",
      "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2019-5636 (GCVE-0-2019-5636)

Vulnerability from cvelistv5 – Published: 2019-11-21 19:16 – Updated: 2024-09-17 03:18

Title

Beckhoff TwinCAT Discovery Service Denial of Service

Summary

When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

Severity

5.3 (Medium)


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

CWE

CWE-404 - Improper Resource Shutdown or Release

Assigner

rapid7 CNA under the mitre root

CNA scorecard B 76/100 over 81 records in the last 180 days details

References

2 references

URL	Tags
https://download.beckhoff.com/download/Document/p…	x_refsource_CONFIRM
https://blog.rapid7.com/2019/10/08/r7-2019-32-den…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
Beckhoff	TwinCAT 2	Affected: 2304 , ≤ 2304 (custom)
Beckhoff	TwinCAT 3.1	Affected: 4204.0 , ≤ 4204.0 (custom)

Date Public

2019-10-08 00:00

Credits

This issue was discovered, and reported to Rapid7, by Andreas Galauner at Rapid7. It is being disclosed in accordance with Rapid7's vulnerability disclosure policy (https://www.rapid7.com/disclosure/).

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Sightings

Author	Source	Type	Date	Other

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.

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