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GHSA-Q4W2-P3XV-W8VF

Vulnerability from github – Published: 2022-05-24 17:19 – Updated: 2024-04-04 02:52

Details

A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication.

Severity

4.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2020-3231"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284",
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-06-03T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication.",
  "id": "GHSA-q4w2-p3xv-w8vf",
  "modified": "2024-04-04T02:52:53Z",
  "published": "2022-05-24T17:19:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3231"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2020-3231 (GCVE-0-2020-3231)

Vulnerability from cvelistv5 – Published: 2020-06-03 17:42 – Updated: 2024-11-15 17:13

Title

Cisco IOS Software for Catalyst 2960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability

Summary

Severity

4.7 (Medium)


                        
                          CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-15 16:28 UTC

CWE

CWE-284

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 395 records in the last 180 days details

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco IOS 15.2(5a)E	Affected: n/a

Date Public

2020-06-03 00:00

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:30:57.496Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20200603 Cisco IOS Software for Catalyst\u00a02960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-3231",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-15T16:28:09.717363Z",
                "version": "2.0.3"
              },
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            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-15T17:13:50.965Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS 15.2(5a)E",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-06-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.0"
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      "providerMetadata": {
        "dateUpdated": "2020-06-03T17:42:27.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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      },
      "references": [
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          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
        }
      ],
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        "defect": [
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      },
      "title": "Cisco IOS Software for Catalyst\u00a02960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2020-06-03T16:00:00",
          "ID": "CVE-2020-3231",
          "STATE": "PUBLIC",
          "TITLE": "Cisco IOS Software for Catalyst\u00a02960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability"
        },
        "affects": {
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            "vendor_data": [
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            }
          ]
        },
        "exploit": [
          {
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            "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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        ],
        "impact": {
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              "description": [
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        "references": {
          "reference_data": [
            {
              "name": "20200603 Cisco IOS Software for Catalyst\u00a02960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability",
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              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
            }
          ]
        },
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    "dateReserved": "2019-12-12T00:00:00.000Z",
    "dateUpdated": "2024-11-15T17:13:50.965Z",
    "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.
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GHSA-Q4W2-P3XV-W8VF

CVE-2020-3231 (GCVE-0-2020-3231)

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