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VAR-202206-1921

Vulnerability from variot - Updated: 2025-07-04 20:24

In CODESYS Gateway Server V2 for versions prior to V2.3.9.38 only a part of the the specified password is been compared to the real CODESYS Gateway password. An attacker may perform authentication by specifying a small password that matches the corresponding part of the longer real CODESYS Gateway password. CODESYS GmbH of CODESYS Gateway contains a partial string comparison vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state

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CVE-2022-31802 (GCVE-0-2022-31802)

Vulnerability from cvelistv5 – Published: 2022-06-24 07:46 – Updated: 2024-09-17 00:32

Title

Partial string comparison in CODESYS gateway server

Summary

Severity

9.8 (Critical)


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

CWE

CWE-187 - Partial String Comparison

Assigner

CERTVDE CNA under the icscert root

CNA scorecard B 76/100 over 151 records in the last 180 days details

References

1 reference

URL	Tags
https://customers.codesys.com/index.php?eID=dumpF…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
CODESYS	CODESYS Gateway Server V2	Affected: V2 , < V2.3.9.38 (custom)

Date Public

2022-06-09 00:00

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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