fkie_cve-2019-1654
Vulnerability from fkie_nvd
Published
2019-04-17 22:29
Modified
2024-11-21 04:37
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in the development shell (devshell) authentication for Cisco Aironet Series Access Points (APs) running the Cisco AP-COS operating system could allow an authenticated, local attacker to access the development shell without proper authentication, which allows for root access to the underlying Linux OS. The attacker would need valid device credentials. The vulnerability exists because the software improperly validates user-supplied input at the CLI authentication prompt for development shell access. An attacker could exploit this vulnerability by authenticating to the device and entering crafted input at the CLI. A successful exploit could allow the attacker to access the AP development shell without proper authentication, which allows for root access to the underlying Linux OS. Software versions prior to 8.3.150.0, 8.5.135.0, and 8.8.100.0 are affected.
References
psirt@cisco.comhttp://www.securityfocus.com/bid/107991Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aironet-shellVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/107991Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aironet-shellVendor Advisory
Impacted products
Vendor Product Version
cisco ap-cos *
cisco ap-cos *
cisco ap-cos *
cisco aironet_1540 -
cisco aironet_1560 -
cisco aironet_1800 -
cisco aironet_2800 -
cisco aironet_3800 -


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "35B22B9B-962F-4077-82F7-876CFF33BD09",
              "versionEndExcluding": "8.3.150.0",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:cisco:ap-cos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B7E523B1-FC54-492C-9D45-BBAE43D3AAF7",
              "versionEndExcluding": "8.5.135.0",
              "versionStartIncluding": "8.4.100.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:ap-cos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "64358BEC-DBC7-4B47-B2E4-1803F0EAB22B",
              "versionEndExcluding": "8.8.100.0",
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
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            {
              "criteria": "cpe:2.3:h:cisco:aironet_1540:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "72BFEED4-7AD7-406F-A044-BDEA98133711",
              "vulnerable": false
            },
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              "matchCriteriaId": "8191FD87-4E55-4F38-8DB0-7E6772AD075B",
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            },
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        }
      ],
      "operator": "AND"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the development shell (devshell) authentication for Cisco Aironet Series Access Points (APs) running the Cisco AP-COS operating system could allow an authenticated, local attacker to access the development shell without proper authentication, which allows for root access to the underlying Linux OS. The attacker would need valid device credentials. The vulnerability exists because the software improperly validates user-supplied input at the CLI authentication prompt for development shell access. An attacker could exploit this vulnerability by authenticating to the device and entering crafted input at the CLI. A successful exploit could allow the attacker to access the AP development shell without proper authentication, which allows for root access to the underlying Linux OS. Software versions prior to 8.3.150.0, 8.5.135.0, and 8.8.100.0 are affected."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la autorizaci\u00f3n shell de desarrollo (devshell) para Aironet Series Access Points (APs) de Cisco  que utilizan el sistema operativo AP-COS de Cisco podr\u00eda permitir que un atacante local identificado acceder a shell de desarrollo sin la autenticaci\u00f3n adecuada, lo que permite el acceso root al subyacente SO Linux. El atacante necesitar\u00eda credenciales de dispositivo v\u00e1lidas. La vulnerabilidad se debe a que el programa comprueba incorrectamente la entrada suministrada por el usuario en la solicitud de autorizaci\u00f3n de CLI para el acceso a shell de desarrollo. Un atacante podr\u00eda aprovechar esta vulnerabilidad al identificarse en el dispositivo e ingresar una entrada creada en la CLI. Una operaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante acceder a shell de desarrollo de AP sin la identificaci\u00f3n adecuada, lo que permite el acceso de root al sistema operativo Linux subyacente. Las versiones del programa anteriores a 8.3.150.0, 8.5.135.0 y 8.8.100.0 est\u00e1n afectadas."
    }
  ],
  "id": "CVE-2019-1654",
  "lastModified": "2024-11-21T04:37:01.390",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-04-17T22:29:00.327",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/107991"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aironet-shell"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/107991"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aironet-shell"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-255"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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