fkie_cve-2019-1731
Vulnerability from fkie_nvd
Published
2019-05-15 17:29
Modified
2024-11-21 04:37
Summary
A vulnerability in the SSH CLI key management functionality of Cisco NX-OS Software could allow an authenticated, local attacker to expose a user's private SSH key to all authenticated users on the targeted device. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to incomplete error handling if a specific error type occurs during the SSH key export. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the CLI. A successful exploit could allow the attacker to expose a user's private SSH key. In addition, a similar type of error in the SSH key import could cause the passphrase-protected private SSH key to be imported unintentionally.
Impacted products
Vendor Product Version
cisco nx-os *
cisco nx-os *
cisco nexus_3016 -
cisco nexus_3048 -
cisco nexus_3064 -
cisco nexus_3064-t -
cisco nexus_31108pc-v -
cisco nexus_31108tc-v -
cisco nexus_31128pq -
cisco nexus_3132c-z -
cisco nexus_3132q -
cisco nexus_3132q-v -
cisco nexus_3132q-xl -
cisco nexus_3164q -
cisco nexus_3172 -
cisco nexus_3172pq-xl -
cisco nexus_3172tq -
cisco nexus_3172tq-32t -
cisco nexus_3172tq-xl -
cisco nexus_3232c -
cisco nexus_3264c-e -
cisco nexus_3264q -
cisco nexus_3408-s -
cisco nexus_34180yc -
cisco nexus_3432d-s -
cisco nexus_3464c -
cisco nexus_9000v -
cisco nexus_92160yc-x -
cisco nexus_92300yc -
cisco nexus_92304qc -
cisco nexus_92348gc-x -
cisco nexus_9236c -
cisco nexus_9272q -
cisco nexus_93108tc-ex -
cisco nexus_93108tc-fx -
cisco nexus_93120tx -
cisco nexus_93128tx -
cisco nexus_93180lc-ex -
cisco nexus_93180yc-ex -
cisco nexus_93180yc-fx -
cisco nexus_93216tc-fx2 -
cisco nexus_93240yc-fx2 -
cisco nexus_9332c -
cisco nexus_9332pq -
cisco nexus_93360yc-fx2 -
cisco nexus_9336c-fx2 -
cisco nexus_9336pq_aci_spine -
cisco nexus_9348gc-fxp -
cisco nexus_9364c -
cisco nexus_9372px -
cisco nexus_9372px-e -
cisco nexus_9372tx -
cisco nexus_9372tx-e -
cisco nexus_9396px -
cisco nexus_9396tx -
cisco nx-os *
cisco nx-os *
cisco nexus_3524 -
cisco nexus_3524-x -
cisco nexus_3524-xl -
cisco nexus_3548 -
cisco nexus_3548-x -
cisco nexus_3548-xl -
cisco nx-os *
cisco nexus_5548p -
cisco nexus_5548up -
cisco nexus_5596t -
cisco nexus_5596up -
cisco nexus_56128p -
cisco nexus_5624q -
cisco nexus_5648q -
cisco nexus_5672up -
cisco nexus_5696q -
cisco nexus_6001 -
cisco nexus_6004 -
cisco nx-os *
cisco nexus_36180yc-r -
cisco nexus_3636c-r -
cisco nexus_9504 -
cisco nexus_9508 -
cisco nexus_9516 -



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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "A vulnerability in the SSH CLI key management functionality of Cisco NX-OS Software could allow an authenticated, local attacker to expose a user\u0027s private SSH key to all authenticated users on the targeted device. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to incomplete error handling if a specific error type occurs during the SSH key export. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the CLI. A successful exploit could allow the attacker to expose a user\u0027s private SSH key. In addition, a similar type of error in the SSH key import could cause the passphrase-protected private SSH key to be imported unintentionally."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la funcionalidad de administraci\u00f3n de claves CLI SSH del software Cisco NX-OS podr\u00eda permitir que un atacante local autorizado exponga la clave SSH privada de un usuario a todos los usuarios autorizados en el dispositivo de destino. El atacante debe identificarse con credenciales de dispositivo de administrador v\u00e1lidas. La vulnerabilidad se debe a un manejo de errores incompleto si se produce un tipo de error espec\u00edfico durante la exportaci\u00f3n de la clave SSH. Un atacante podr\u00eda explotar esta vulnerabilidad al identificarse en el dispositivo e ingresar un comando creado en la CLI. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante exponer la clave SSH privada de un usuario. Adem\u00e1s, un tipo de error similar en la importaci\u00f3n de la clave SSH podr\u00eda hacer que la clave privada SSH protegida por contrase\u00f1a se importara involuntariamente."
    }
  ],
  "id": "CVE-2019-1731",
  "lastModified": "2024-11-21T04:37:12.010",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
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          "accessVector": "LOCAL",
          "authentication": "NONE",
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          "baseScore": 2.1,
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        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
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        "source": "nvd@nist.gov",
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          "confidentialityImpact": "HIGH",
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N",
          "version": "3.0"
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        "exploitabilityScore": 0.8,
        "impactScore": 4.2,
        "source": "psirt@cisco.com",
        "type": "Secondary"
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        "source": "nvd@nist.gov",
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  "published": "2019-05-15T17:29:01.780",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
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        "VDB Entry"
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      "url": "http://www.securityfocus.com/bid/108353"
    },
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      "tags": [
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-ssh-info"
    },
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}


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