github - ghsa-3p5w-c6fg-w249

ghsa-3p5w-c6fg-w249

Vulnerability from github

Published

2022-04-15 00:00

Modified

2022-04-27 00:00

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-28505"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-04-14T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.",
  "id": "GHSA-3p5w-c6fg-w249",
  "modified": "2022-04-27T00:00:35Z",
  "published": "2022-04-15T00:00:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28505"
    },
    {
      "type": "WEB",
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-28505

Vulnerability from cvelistv5

Published

2022-04-14 20:05

Modified

2024-09-16 16:58

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

References

▼	URL	Tags
	https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

Arista Networks

EOS

Version: 4.26.3M <
Version: 4.27.0F <

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T21:47:32.647Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "EOS",
          "vendor": "Arista Networks",
          "versions": [
            {
              "lessThanOrEqual": "4.26.0",
              "status": "affected",
              "version": "4.26.3M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.27.0",
              "status": "affected",
              "version": "4.27.0F",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2022-03-29T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-04-14T20:05:50",
        "orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
        "shortName": "Arista"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience.\nArtista recommends customers move to the latest version of each release that contains all the fixes listed below.\n\nCVE-2021-28505 has been fixed in the following releases:\n\n4.26.4M and later releases in the 4.26.x train\n4.27.1F and later releases in the 4.27.x train"
        }
      ],
      "source": {
        "advisory": "73",
        "defect": [
          "BUG",
          "609752"
        ],
        "discovery": "INTERNAL"
      },
      "title": "On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.",
      "workarounds": [
        {
          "lang": "en",
          "value": "Replace \"vxlan\" IP protocol match with match on IP protocol \"udp\" and Layer 4 destination port for VxLAN encapsulated packets i.e 4789. \u003c br/\u003e If VXLAN L4 destination port number is not the default 4789 then use the configured L4 destination port number."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@arista.com",
          "DATE_PUBLIC": "2022-03-29T21:53:00.000Z",
          "ID": "CVE-2021-28505",
          "STATE": "PUBLIC",
          "TITLE": "On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol."
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "EOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "4.26.3M",
                            "version_value": "4.26.0"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_name": "4.27.0F",
                            "version_value": "4.27.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Arista Networks"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "CWE-284 Improper Access Control"
                }
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            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073",
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        "solution": [
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            "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience.\nArtista recommends customers move to the latest version of each release that contains all the fixes listed below.\n\nCVE-2021-28505 has been fixed in the following releases:\n\n4.26.4M and later releases in the 4.26.x train\n4.27.1F and later releases in the 4.27.x train"
          }
        ],
        "source": {
          "advisory": "73",
          "defect": [
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          ],
          "discovery": "INTERNAL"
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        "work_around": [
          {
            "lang": "en",
            "value": "Replace \"vxlan\" IP protocol match with match on IP protocol \"udp\" and Layer 4 destination port for VxLAN encapsulated packets i.e 4789. \u003c br/\u003e If VXLAN L4 destination port number is not the default 4789 then use the configured L4 destination port number."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
    "assignerShortName": "Arista",
    "cveId": "CVE-2021-28505",
    "datePublished": "2022-04-14T20:05:50.059934Z",
    "dateReserved": "2021-03-16T00:00:00",
    "dateUpdated": "2024-09-16T16:58:06.559Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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