« Volver al listado

CVE-2021-31520

Estado: ModificadaAlta (8.1)—

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.

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 (1)

Trendmicro — IM Security

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-31520",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "security@trendmicro.com",
      "affectedData": [
        {
          "vendor": "Trend Micro",
          "product": "Trend Micro IM Security",
          "versions": [
            {
              "status": "affected",
              "version": "1.6, 1.6.5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-05-10T11:15:08.003",
  "references": [
    {
      "url": "https://success.trendmicro.com/solution/000286439",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-525/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://success.trendmicro.com/solution/000286439",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-525/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "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 omisión de autenticación de token de sesión débil en Trend Micro IM Security versiones 1.6 y 1.6.5, podría permitir a un atacante remoto adivinar el token de sesión de los administradores que han iniciado sesión actualmente para obtener acceso a la interfaz de administración web del producto"
    }
  ],
  "lastModified": "2026-06-17T03:51:57.137",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:im_security:1.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1703CAB2-FC48-4674-9C3D-DE1ED5C2484F"
            },
            {
              "criteria": "cpe:2.3:a:trendmicro:im_security:1.6.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DF864E42-A053-4693-BCC3-B2F67A5F85E9"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@trendmicro.com"
}