Vulnerability-Lookup

VAR-202203-1590

Vulnerability from variot - Updated: 2024-11-23 21:50

totolink EX300_v2, ver V4.0.3c.140_B20210429 and A720R ,ver V4.1.5cu.470_B20200911 have an issue which causes uncontrolled resource consumption. TOTOLINK of ex300 v2 firmware and A720R A vulnerability exists in the firmware regarding resource allocation without limits or throttling.Service operation interruption (DoS) It may be in a state. TotoLink EX300 is a 300 Mbps wireless N range extender from TotoLink in China. TotoLink A720R is a gigabit dual-band wireless wifi amplifier from China TotoLink company.

TotoLink EX300_v2 and A720R have a resource management error vulnerability that could be exploited by an attacker to run out of storage space, resulting in a DoS condition

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CVE-2021-43662 (GCVE-0-2021-43662)

Vulnerability from cvelistv5 – Published: 2022-03-30 23:26 – Updated: 2024-08-04 04:03

Summary

totolink EX300_v2, ver V4.0.3c.140_B20210429 and A720R ,ver V4.1.5cu.470_B20200911 have an issue which causes uncontrolled resource consumption.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2311 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/chibataiki/iot-vuls/blob/main/…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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              "name": "https://github.com/chibataiki/iot-vuls/blob/main/totolink/dos.md",
              "refsource": "MISC",
              "url": "https://github.com/chibataiki/iot-vuls/blob/main/totolink/dos.md"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-43662",
    "datePublished": "2022-03-30T23:26:03.000Z",
    "dateReserved": "2021-11-15T00:00:00.000Z",
    "dateUpdated": "2024-08-04T04:03:08.137Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

Action not permitted

VAR-202203-1590

CVE-2021-43662 (GCVE-0-2021-43662)

Tags

Sightings

Nomenclature

Related by attack behaviour