Vulnerability-Lookup

CNVD-2020-32904

Vulnerability from cnvd - Published: 2020-06-15

Title

Cisco Catalyst 2960-L Series Switches和CDB-8P Switches访问控制错误漏洞

Description

Cisco Catalyst 2960-L Series Switches和Cisco Catalyst CDB-8P Switches都是美国思科（Cisco）公司的产品。Cisco Catalyst 2960-L Series Switches是一款2960-L系列交换机。Cisco Catalyst CDB-8P Switches是一款数字建筑系列交换机。 Cisco Catalyst 2960-L Series Switches和Cisco Catalyst CDB-8P Switches中的802.1X功能存在访问控制错误漏洞，该漏洞源于程序未能正确处理802.1X开启的端口上的广播流量。攻击者可通过在进行身份验证之前发送广播流量利用该漏洞发送并接收802.1X开启的端口上的广播流量。

Severity

低

Patch Name

Cisco Catalyst 2960-L Series Switches和CDB-8P Switches访问控制错误漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3231

Impacted products

Name
['Cisco Catalyst 2960-L Series Switches', 'Cisco Catalyst CDB-8P Switches']

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-3231"
    }
  },
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-32904",
  "openTime": "2020-06-15",
  "patchDescription": "Cisco Catalyst 2960-L Series Switches\u548cCisco Catalyst CDB-8P Switches\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002Cisco Catalyst 2960-L Series Switches\u662f\u4e00\u6b3e2960-L\u7cfb\u5217\u4ea4\u6362\u673a\u3002Cisco Catalyst CDB-8P Switches\u662f\u4e00\u6b3e\u6570\u5b57\u5efa\u7b51\u7cfb\u5217\u4ea4\u6362\u673a\u3002\r\n\r\nCisco Catalyst 2960-L Series Switches\u548cCisco Catalyst CDB-8P Switches\u4e2d\u7684802.1X\u529f\u80fd\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406802.1X\u5f00\u542f\u7684\u7aef\u53e3\u4e0a\u7684\u5e7f\u64ad\u6d41\u91cf\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u4e4b\u524d\u53d1\u9001\u5e7f\u64ad\u6d41\u91cf\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u9001\u5e76\u63a5\u6536802.1X\u5f00\u542f\u7684\u7aef\u53e3\u4e0a\u7684\u5e7f\u64ad\u6d41\u91cf\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
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    ]
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  "serverity": "\u4f4e",
  "submitTime": "2020-06-04",
  "title": "Cisco Catalyst 2960-L Series Switches\u548cCDB-8P Switches\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

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

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:3.0/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 434 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

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:30:57.496Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
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        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2020-3231",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "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": {
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          "vendor": "Cisco",
          "versions": [
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            }
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      "descriptions": [
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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": [
        {
          "cvssV3_0": {
            "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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      "references": [
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          ],
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        }
      ],
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        "defect": [
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        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS Software for Catalyst\u00a02960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability",
      "x_legacyV4Record": {
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          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2020-06-03T16:00:00",
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            }
          ]
        },
        "exploit": [
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    "state": "PUBLISHED"
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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.

Vulnerability timeline

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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.

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