Vulnerability-Lookup

GHSA-3P5W-C6FG-W249

Vulnerability from github – Published: 2022-04-15 00:00 – Updated: 2022-04-27 00:00

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.

Severity

7.5 (High)


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

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 (GCVE-0-2021-28505)

Vulnerability from cvelistv5 – Published: 2022-04-14 20:05 – Updated: 2024-09-16 16:58

Title

Summary

Severity

7.5 (High)


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

CWE

CWE-284 - Improper Access Control

Assigner

Arista

References

1 reference

URL	Tags
https://www.arista.com/en/support/advisories-noti…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Arista Networks	EOS	Affected: 4.26.3M , ≤ 4.26.0 (custom) Affected: 4.27.0F , ≤ 4.27.0 (custom)

Date Public

2022-03-29 00:00

Show details on NVD website

JSON

To clipboard

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            ],
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"
          }
        ],
        "title": "CVE Program Container"
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    ],
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          "vendor": "Arista Networks",
          "versions": [
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              "lessThanOrEqual": "4.26.0",
              "status": "affected",
              "version": "4.26.3M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.27.0",
              "status": "affected",
              "version": "4.27.0F",
              "versionType": "custom"
            }
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        }
      ],
      "datePublic": "2022-03-29T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
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        "orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
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        }
      ],
      "source": {
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        "defect": [
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        "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."
        }
      ],
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        },
        "affects": {
          "vendor": {
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                          },
                          {
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                          }
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            }
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          }
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-3P5W-C6FG-W249

CVE-2021-28505 (GCVE-0-2021-28505)

Tags

Sightings

Nomenclature