github - ghsa-vqr2-c24p-rh7p

GHSA-VQR2-C24P-RH7P

Vulnerability from github – Published: 2022-05-24 17:40 – Updated: 2025-11-25 18:32

Details

On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3297"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-26T18:16:00Z",
    "severity": "HIGH"
  },
  "details": "On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.",
  "id": "GHSA-vqr2-c24p-rh7p",
  "modified": "2025-11-25T18:32:17Z",
  "published": "2022-05-24T17:40:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3297"
    },
    {
      "type": "WEB",
      "url": "https://codeberg.org/nieldk/vulnerabilities/src/branch/main/zyxel%20nbg2105/Admin%20bypass"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass"
    },
    {
      "type": "WEB",
      "url": "https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb\u0026l=en\u0026kbid=M-01490\u0026md=NBG2105"
    },
    {
      "type": "WEB",
      "url": "https://www.zyxel.com/us/en/support/security_advisories.shtml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-3297 (GCVE-0-2021-3297)

Vulnerability from cvelistv5 – Published: 2021-01-26 07:11 – Updated: 2025-11-25 17:27

Summary

On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://www.zyxel.com/us/en/support/security_advi…
	https://www.zyxel.com/support/SupportLandingSR.sh…
	https://github.com/nieldk/vulnerabilities/blob/ma…
	https://codeberg.org/nieldk/vulnerabilities/src/b…

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  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:53:17.612Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.zyxel.com/us/en/support/security_advisories.shtml"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb\u0026l=en\u0026kbid=M-01490\u0026md=NBG2105"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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        }
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      "descriptions": [
        {
          "lang": "en",
          "value": "On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access."
        }
      ],
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      "providerMetadata": {
        "dateUpdated": "2025-11-25T17:27:20.441Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      },
      "references": [
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        },
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        },
        {
          "url": "https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass"
        },
        {
          "url": "https://codeberg.org/nieldk/vulnerabilities/src/branch/main/zyxel%20nbg2105/Admin%20bypass"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-3297",
          "STATE": "PUBLIC"
        },
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            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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                },
                "vendor_name": "n/a"
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        "data_version": "4.0",
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            },
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            }
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2021-01-26T07:11:41.000Z",
    "dateReserved": "2021-01-25T00:00:00.000Z",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-VQR2-C24P-RH7P

CVE-2021-3297 (GCVE-0-2021-3297)

Tags

Sightings

Nomenclature