Vulnerability-Lookup

GHSA-XCQQ-8632-69XX

Vulnerability from github – Published: 2022-11-09 19:02 – Updated: 2022-11-09 19:02

Details

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS.

Severity

9.1 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-34566"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
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    "github_reviewed_at": null,
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    "severity": "CRITICAL"
  },
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  "id": "GHSA-xcqq-8632-69xx",
  "modified": "2022-11-09T19:02:23Z",
  "published": "2022-11-09T19:02:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34566"
    },
    {
      "type": "WEB",
      "url": "https://cert.vde.com/en/advisories/VDE-2020-036"
    }
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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}

CVE-2021-34566 (GCVE-0-2021-34566)

Vulnerability from cvelistv5 – Published: 2022-11-09 15:17 – Updated: 2025-05-01 14:21

Title

WAGO I/O-Check Service prone to Memory Overflow

Summary

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-01 14:21 UTC

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

CERTVDE icscert root

References

1 reference

URL	Tags
https://cert.vde.com/en/advisories/VDE-2020-036/

Impacted products

6 products

Vendor	Product	Version
WAGO	750-81xx/xxx-xxxFW	Affected: FW1 , ≤ FW18 Patch 2 (custom)
WAGO	750-82xx/xxx-xxx	Affected: FW1 , ≤ FW18 Patch 2 (custom)
WAGO	752-8303/8000-0002	Affected: FW1 , ≤ FW18 Patch 2 (custom)
WAGO	762-4xxx	Affected: FW1 , ≤ FW18 Patch 2 (custom)
WAGO	762-5xxx	Affected: FW1 , ≤ FW18 Patch 2 (custom)
WAGO	762-6xxx	Affected: FW1 , ≤ FW18 Patch 2 (custom)

Date Public

2021-06-29 10:00

Credits

These vulnerabilities were reported to WAGO by Uri Katz of Claroty.

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JSON

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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.