{
  "id": "CVE-2021-31520",
  "sourceIdentifier": "security@trendmicro.com",
  "published": "2021-05-10T11:15:08.003",
  "lastModified": "2021-05-19T18:25:09.457",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A weak session token authentication bypass vulnerability in Trend Micro IM Security 1.6 and 1.6.5 could allow an remote attacker to guess currently logged-in administrators' session session token in order to gain access to the product's web management interface."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n de token de sesi\u00f3n d\u00e9bil en Trend Micro IM Security versiones 1.6 y 1.6.5, podr\u00eda permitir a un atacante remoto adivinar el token de sesi\u00f3n de los administradores que han iniciado sesi\u00f3n actualmente para obtener acceso a la interfaz de administraci\u00f3n web del producto"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:trendmicro:im_security:1.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "1703CAB2-FC48-4674-9C3D-DE1ED5C2484F"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:trendmicro:im_security:1.6.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF864E42-A053-4693-BCC3-B2F67A5F85E9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://success.trendmicro.com/solution/000286439",
      "source": "security@trendmicro.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-525/",
      "source": "security@trendmicro.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    }
  ]
}