fkie_cve-2020-9015
Vulnerability from fkie_nvd
Published
2020-02-20 22:15
Modified
2024-11-21 05:39
Severity ?
Summary
Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly permissive regular expression in the TACACS+ server permitted commands



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:arista:dcs-7050qx-32s-r_firmware:4.20.9m:*:*:*:*:*:*:*",
              "matchCriteriaId": "FFBADFE5-A368-4CA9-AD72-400DFBF381AF",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arista:dcs-7050qx-32s-r:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "0630F568-230E-4067-B80E-4280CA371B35",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arista:dcs-7050cx3-32s-r_firmware:4.20.11m:*:*:*:*:*:*:*",
              "matchCriteriaId": "F7F04E8A-9FA0-4199-8F62-291EC835B154",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arista:dcs-7050cx3-32s-r:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E6F270D9-1B05-4CBC-BEE0-0850C94BB9F0",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arista:dcs-7280sram-48c6-r_firmware:4.22.0.1f:*:*:*:*:*:*:*",
              "matchCriteriaId": "09B0C068-0FBB-48BA-B5F4-A427D40CF110",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arista:dcs-7280sram-48c6-r:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "4592091C-AD4A-4904-9EFF-C85AABFD7CDE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly permissive regular expression in the TACACS+ server permitted commands"
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** Los dispositivos Arista DCS-7050QX-32S-R versi\u00f3n 4.20.9M, DCS-7050CX3-32S-R versi\u00f3n 4.20.11M y DCS-7280SRAM-48C6-R versi\u00f3n 4.22.0.1F (y posiblemente otros productos), permiten a atacantes omitir las restricciones de shell TACACS+ previstas por medio de un car\u00e1cter |. NOTA: el proveedor informa que este es un problema de configuraci\u00f3n relacionado con una expresi\u00f3n regular demasiado permisiva en los comandos permitidos del servidor TACACS +."
    }
  ],
  "id": "CVE-2020-9015",
  "lastModified": "2024-11-21T05:39:49.993",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-02-20T22:15:12.177",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://securitybytes.me"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "https://securitybytes.me/posts/cve-2020-9015/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://eos.arista.com/arista-eos-is-not-vulnerable-to-cve-2020-9015/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://securitybytes.me"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "https://securitybytes.me/posts/cve-2020-9015/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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