Vulnerability-Lookup

GHSA-6PWV-HR7P-G77V

Vulnerability from github – Published: 2023-01-11 21:30 – Updated: 2025-11-04 21:30

Details

Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a "fake login" to give the request an active session to load the file and not redirect to the login page.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-4874"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-11T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page.",
  "id": "GHSA-6pwv-hr7p-g77v",
  "modified": "2025-11-04T21:30:28Z",
  "published": "2023-01-11T21:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4874"
    },
    {
      "type": "WEB",
      "url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/986018"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-4874 (GCVE-0-2022-4874)

Vulnerability from cvelistv5 – Published: 2023-01-11 20:39 – Updated: 2025-11-04 19:14

Title

Authenticated bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows unauthenticated user to get access to content.

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-09 14:13 UTC

CWE

CWE-288

Assigner

certcc CNA under the mitre root

CNA scorecard E 42/100 over 172 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/scarvell/advisories/blob/main/…
https://www.kb.cert.org/vuls/id/986018

Impacted products

3 products

Vendor	Product	Version
Netcomm	NF20	Affected: R6B025
Netcomm	NF20MESH	Affected: R6B025
Netcomm	NL1902	Affected: R6B025

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T19:14:31.884Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md"
          },
          {
            "url": "https://www.kb.cert.org/vuls/id/986018"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-4874",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-09T14:13:36.023102Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-09T14:14:13.898Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "NF20",
          "vendor": "Netcomm",
          "versions": [
            {
              "status": "affected",
              "version": "R6B025"
            }
          ]
        },
        {
          "product": "NF20MESH",
          "vendor": "Netcomm",
          "versions": [
            {
              "status": "affected",
              "version": "R6B025"
            }
          ]
        },
        {
          "product": "NL1902",
          "vendor": "Netcomm",
          "versions": [
            {
              "status": "affected",
              "version": "R6B025"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-288",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-11T20:39:25.219Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Authenticated bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows unauthenticated user to get access to content.",
      "x_generator": {
        "engine": "VINCE 2.0.5",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api//cve/CVE-2022-4874"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2022-4874",
    "datePublished": "2023-01-11T20:39:25.219Z",
    "dateReserved": "2023-01-04T14:23:54.409Z",
    "dateUpdated": "2025-11-04T19:14:31.884Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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