gsd-2021-28495
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train
Aliases
Aliases
CVE-2021-28495


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-28495",
    "description": "In Arista\u0027s MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train",
    "id": "GSD-2021-28495"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-28495"
      ],
      "details": "In Arista\u0027s MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train",
      "id": "GSD-2021-28495",
      "modified": "2023-12-13T01:23:29.275009Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "psirt@arista.com",
        "ID": "CVE-2021-28495",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Metamako Operating System",
                    "version": {
                      "version_data": [
                        {
                          "platform": "Arista 7130 Systems running MOS",
                          "version_affected": "\u003e=",
                          "version_name": "MOS-0.13",
                          "version_value": "MOS-0.13"
                        },
                        {
                          "platform": "Arista 7130 Systems running MOS",
                          "version_affected": "\u003c",
                          "version_name": "MOS-0.26.7",
                          "version_value": "MOS-0.26.7"
                        },
                        {
                          "platform": "Arista 7130 Systems running MOS",
                          "version_affected": "\u003c",
                          "version_name": "MOS-0.32.0",
                          "version_value": "MOS-0.32.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Arista"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In Arista\u0027s MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-287 Improper Authentication"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66",
            "refsource": "MISC",
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to MOS-0.26.7 or MOS-0.32.0\n"
        },
        {
          "lang": "eng",
          "value": "Install hotfix stored at https://www.arista.com/assets/data/SecurityAdvisories/SA64-67/SecurityAdvisory64-67-Hotfix-mos-1818-2.0.0-1.11.core2_64.rpm\nFor detailed information about hotfix installation, please see the advisory https://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [
              {
                "children": [],
                "cpe_match": [
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                    "cpe23Uri": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndIncluding": "0.13.0",
                    "versionStartIncluding": "0.10.0",
                    "vulnerable": true
                  },
                  {
                    "cpe23Uri": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndIncluding": "0.26.7",
                    "versionStartIncluding": "0.20.0",
                    "vulnerable": true
                  },
                  {
                    "cpe23Uri": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndExcluding": "0.32.0",
                    "versionStartIncluding": "0.30.0",
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
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                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@arista.com",
          "ID": "CVE-2021-28495"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "In Arista\u0027s MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-287"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66",
              "refsource": "MISC",
              "tags": [
                "Mitigation",
                "Vendor Advisory"
              ],
              "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-09-22T16:34Z",
      "publishedDate": "2021-09-09T13:15Z"
    }
  }
}


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