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CVE-2020-37248

Estado: AplazadaMedia (6.5)—

OfflineIMAP before 8.0.3 trusts the server with their STARTTLS capability prior to authentication, which allows STRIPTLS/man-in-the-middle attacks, taking over the connection and extracting account credentials in cleartext.

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Offlineimap — OfflineimapAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-37248",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-37248",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-08T18:08:25.432667Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "OfflineIMAP",
          "product": "OfflineIMAP",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "8.0.3",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:pypi/offlineimap",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-06-08T16:16:33.257",
  "references": [
    {
      "url": "https://github.com/OfflineIMAP/offlineimap/issues/669",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/OfflineIMAP/offlineimap3/commit/46505c53ef995455d66c685f9ec3ff6ea93dbb74",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/OfflineIMAP/offlineimap3/issues/222",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://pypi.org/project/offlineimap/#history",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/06/08/3",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-348"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "OfflineIMAP before 8.0.3 trusts the server with their STARTTLS capability prior to authentication, which allows STRIPTLS/man-in-the-middle attacks, taking over the connection and extracting account credentials in cleartext."
    },
    {
      "lang": "es",
      "value": "OfflineIMAP anterior a la 8.0.3 confía en el servidor con su capacidad STARTTLS antes de la autenticación, lo que permite ataques STRIPTLS/man-in-the-middle, tomando el control de la conexión y extrayendo las credenciales de la cuenta en texto claro."
    }
  ],
  "lastModified": "2026-07-23T07:10:00.113",
  "sourceIdentifier": "cve@mitre.org"
}