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

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3231"
    }
  },
  "description": "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\n\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",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4",
  "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",
  "patchName": "Cisco Catalyst 2960-L Series Switches\u548cCDB-8P Switches\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Catalyst 2960-L Series Switches",
      "Cisco Catalyst CDB-8P Switches"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3231",
  "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

CWE

CWE-284

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

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

Show details on NVD website

JSON

To clipboard

{
  "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"
              },
              "type": "ssvc"
            }
          }
        ],
        "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",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-06-03T17:42:27",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "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"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
        }
      ],
      "source": {
        "advisory": "cisco-sa-c2960L-DpWA9Re4",
        "defect": [
          [
            "CSCvo57950"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "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": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco IOS 15.2(5a)E",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "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."
            }
          ]
        },
        "exploit": [
          {
            "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."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "4.7",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20200603 Cisco IOS Software for Catalyst\u00a02960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-c2960L-DpWA9Re4",
          "defect": [
            [
              "CSCvo57950"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2020-3231",
    "datePublished": "2020-06-03T17:42:27.355666Z",
    "dateReserved": "2019-12-12T00:00:00",
    "dateUpdated": "2024-11-15T17:13:50.965Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

CNVD-2020-32904

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

Tags

Sightings

Nomenclature