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CVE-2025-40924

Estado: AplazadaMedia (6.5)—

Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely.

The session id is generated from a (usually SHA-1) hash of a simple counter, the epoch time, the built-in rand function, the PID and the current Catalyst context. This information is of low entropy. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage.

Predicable session ids could allow an attacker to gain access to systems.

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.

Catalyst — Plugin SessionAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-40924",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-40924",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-17T19:51:00.779304Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "repo": "https://github.com/perl-catalyst/Catalyst-Plugin-Session",
          "vendor": "HAARG",
          "product": "Catalyst::Plugin::Session",
          "versions": [
            {
              "status": "affected",
              "version": "0.01",
              "lessThan": "0.44",
              "versionType": "custom"
            }
          ],
          "packageName": "Catalyst-Plugin-Session",
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-07-17T14:15:31.227",
  "references": [
    {
      "url": "https://github.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce1008286db8c571b6ee98c22c.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/perl-catalyst/Catalyst-Plugin-Session/pull/5",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catalyst/Plugin/Session.pm#L632",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "description": [
        {
          "lang": "en",
          "value": "CWE-338"
        },
        {
          "lang": "en",
          "value": "CWE-340"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely.\n\nThe session id is generated from a (usually SHA-1) hash of a simple counter, the epoch time, the built-in rand function, the PID and the current Catalyst context. This information is of low entropy. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage.\n\nPredicable session ids could allow an attacker to gain access to systems."
    },
    {
      "lang": "es",
      "value": "Catalyst::Plugin::Session para Perl, versiones anteriores a la 0.44, genera identificadores de sesión de forma insegura. El identificador de sesión se genera a partir de un hash (generalmente SHA-1) de un contador simple, la fecha de la época, la función rand integrada, el PID y el contexto actual de Catalyst. Esta información es de baja entropía. El PID se obtendrá de un pequeño conjunto de números, y la fecha de la época puede ser descifrada si no se filtra desde la cabecera HTTP Date. La función rand integrada no es adecuada para uso criptográfico. Los identificadores de sesión predecibles podrían permitir que un atacante acceda a los sistemas."
    }
  ],
  "lastModified": "2026-06-17T09:22:18.090",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
}