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CVE-2024-28820

Estado: AplazadaMedia (6.3)—

Buffer overflow in the extract_openvpn_cr function in openvpn-cr.c in openvpn-auth-ldap (aka the Three Rings Auth-LDAP plugin for OpenVPN) 2.0.4 allows attackers with a valid LDAP username and who can control the challenge/response password field to pass a string with more than 14 colons into this field and cause a buffer overflow.

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.

Openvpn Auth Ldap — Openvpn Auth LdapAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2024-28820",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-28820",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-06-27T18:30:13.370526Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:threerings:openvpn-auth-ldap:*:*:*:*:*:*:*:*"
          ],
          "vendor": "threerings",
          "product": "openvpn-auth-ldap",
          "versions": [
            {
              "status": "affected",
              "version": "2.04"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-06-27T16:15:10.950",
  "references": [
    {
      "url": "https://github.com/threerings/openvpn-auth-ldap/pull/92",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/threerings/openvpn-auth-ldap/tags",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/threerings/openvpn-auth-ldap/pull/92",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/threerings/openvpn-auth-ldap/tags",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in the extract_openvpn_cr function in openvpn-cr.c in openvpn-auth-ldap (aka the Three Rings Auth-LDAP plugin for OpenVPN) 2.0.4 allows attackers with a valid LDAP username and who can control the challenge/response password field to pass a string with more than 14 colons into this field and cause a buffer overflow."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer en la función extract_openvpn_cr en openvpn-cr.c en openvpn-auth-ldap (también conocido como el complemento Three Rings Auth-LDAP para OpenVPN) 2.0.4 permite a atacantes con un nombre de usuario LDAP válido y que pueden controlar el campo de contraseña de desafío/respuesta pasar una cadena con más de 14 dos puntos a este campo y provocar un desbordamiento del búfer."
    }
  ],
  "lastModified": "2026-06-17T07:21:50.790",
  "sourceIdentifier": "cve@mitre.org"
}