« Volver al listado

CVE-2017-12373

Estado: ModificadaMedia (5.9)—

A vulnerability in the TLS protocol implementation of legacy Cisco ASA 5500 Series (ASA 5505, 5510, 5520, 5540, and 5550) devices could allow an unauthenticated, remote attacker to access sensitive information, aka a Return of Bleichenbacher's Oracle Threat (ROBOT) attack. An attacker could iteratively query a server running a vulnerable TLS stack implementation to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions. Cisco Bug IDs: CSCvg97652.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (5)

Cisco — Adaptive Security Appliance 5505 FirmwareCisco — Adaptive Security Appliance 5510 FirmwareCisco — Adaptive Security Appliance 5520 FirmwareCisco — Adaptive Security Appliance 5540 FirmwareCisco — Adaptive Security Appliance 5550 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2017-12373",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Cisco legacy ASA 5500 products TLS protocol implementation",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco legacy ASA 5500 products TLS protocol implementation"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-12-15T20:29:00.207",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/102170",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171212-bleichenbacher",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/102170",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171212-bleichenbacher",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the TLS protocol implementation of legacy Cisco ASA 5500 Series (ASA 5505, 5510, 5520, 5540, and 5550) devices could allow an unauthenticated, remote attacker to access sensitive information, aka a Return of Bleichenbacher's Oracle Threat (ROBOT) attack. An attacker could iteratively query a server running a vulnerable TLS stack implementation to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions. Cisco Bug IDs: CSCvg97652."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la implementación del protocolo TLS de dispositivos heredados Cisco ASA 5500 Series (ASA 5505, 5510, 5520, 5540 y 5550)podría permitir que un atacante remoto no autenticado acceda a información sensible. Esto también se conoce como ataque ROBOT (Return of Bleichenbacher's Oracle Threat). Un atacante podría consultar repetidamente un servidor que ejecuta una implementación de la pila TLS vulnerable para realizar operaciones criptoanalíticas que podrían permitir la descodificación de sesiones TLS previamente capturadas. Cisco Bug IDs: CSCvg97652."
    }
  ],
  "lastModified": "2026-06-17T01:03:14.253",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_5505_firmware:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "804FAA4B-1F4A-45F2-83B0-0C8B5377F4FD"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:adaptive_security_appliance_5505:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "5AC84224-8B1A-4D92-9FBD-813F6C857A77"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_5510_firmware:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9E1BA0E9-B3E1-48A3-88BA-362B61127232"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:adaptive_security_appliance_5510:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "4FF7123A-5538-48AF-BD7A-A0D7962CB10E"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_5520_firmware:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A06904DC-FEE6-4DB0-9DA8-08A52E5EAE7A"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:adaptive_security_appliance_5520:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "35954D5D-F767-485F-94AB-0CD8B58F6352"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_5540_firmware:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8749102F-8AF6-4FF8-9804-BFC4544BEFA8"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:adaptive_security_appliance_5540:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "4CCBF299-D6F5-4D00-8616-9EDE7EAFAC28"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_5550_firmware:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3A33CBA0-FEE5-40CA-A85D-D9F07B800138"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:adaptive_security_appliance_5550:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "C24537C8-4F9C-4979-BB1A-466ADA6C3FF5"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}