Vulnerability-Lookup

VAR-202112-0167

Vulnerability from variot - Updated: 2024-04-18 13:10

ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a network-adjacent attacker with an administrator privilege to execute arbitrary OS commands via unspecified vectors. elecom lan routers is a router of Japan Elecom.

There is an operating system command injection vulnerability in elecom lan routers

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CVE-2021-20853 (GCVE-0-2021-20853)

Vulnerability from cvelistv5 – Published: 2021-12-01 02:15 – Updated: 2024-08-03 17:53

Summary

Severity

No CVSS data available.

CWE

OS Command Injection

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.elecom.co.jp/news/security/20211130-01/	x_refsource_MISC
https://jvn.jp/en/jp/JVN88993473/index.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ELECOM CO.,LTD.	ELECOM LAN routers	Affected: WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior

Show details on NVD website

JSON

To clipboard

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          "url": "https://jvn.jp/en/jp/JVN88993473/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20853",
          "STATE": "PUBLIC"
        },
        "affects": {
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                            "version_value": "WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior"
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                },
                "vendor_name": "ELECOM CO.,LTD."
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        "data_version": "4.0",
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
                {
                  "lang": "eng",
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            },
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    "datePublished": "2021-12-01T02:15:41.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
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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.