CVE-2025-34064

Estado: AplazadaCrítica (9)—

A cloud infrastructure misconfiguration in OneLogin AD Connector results in log data being sent to a hardcoded S3 bucket (onelogin-adc-logs-production) without validating bucket ownership. An attacker who registers this unclaimed bucket can begin receiving log files from other OneLogin tenants. These logs may contain sensitive data such as directory tokens, user metadata, and environment configuration. This enables cross-tenant leakage of secrets, potentially allowing JWT signing key recovery and user impersonation.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 9

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.53%
Percentil entre todas las CVEs puntuadas: 43
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access90 %
Impacto principalT1005 Data from Local Systemcollection85 %
Impacto secundarioT1098 Account Manipulationpersistence · privilege escalation75 %
Impacto secundarioT1552 Unsecured Credentialscredential access80 %

Explotación de aplicación expuesta en la nube por misconfiguracion (bucket S3 sin validación de propiedad). Impactos: acceso a logs sensibles (T1005), extracción de tokens/credenciales (T1552), suplantación de usuarios (T1098).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Restrict File and Directory Permissions Operating System Configuration Network Segmentation Limit Access to Resource Over Network Filter Network Traffic

Tecnologías afectadas (1)

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

Onelogin — AD Connector^AI

CWE

CWE-200, CWE-668

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-34064",
  "cveTags": [],
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "options": [
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            {
              "automatable": "yes"
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            {
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          "version": "2.0.3",
          "timestamp": "2025-07-01T15:12:18.763125Z"
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    "cvssMetricV40": [
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          "Automatable": "NOT_DEFINED",
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          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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      "affectedData": [
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          "vendor": "One Identity",
          "modules": [
            "AD Connector logging system and cloud configuration for log upload",
            "Hardcoded S3 bucket name (onelogin-adc-logs-production)"
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          "product": "OneLogin Active Directory Connector (ADC)",
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  "published": "2025-07-01T15:15:25.050",
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      "url": "https://specterops.io/blog/2025/06/10/onelogin-many-issues-how-i-pivoted-from-a-trial-tenant-to-compromising-customer-signing-keys/",
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      "url": "https://support.onelogin.com/product-notification/noti-00001768",
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      "value": "A cloud infrastructure misconfiguration in OneLogin AD Connector results in log data being sent to a hardcoded S3 bucket (onelogin-adc-logs-production) without validating bucket ownership. An attacker who registers this unclaimed bucket can begin receiving log files from other OneLogin tenants. These logs may contain sensitive data such as directory tokens, user metadata, and environment configuration. This enables cross-tenant leakage of secrets, potentially allowing JWT signing key recovery and user impersonation."
    },
    {
      "lang": "es",
      "value": "Una configuración incorrecta de la infraestructura en la nube en OneLogin AD Connector provoca el envío de datos de registro a un bucket S3 codificado (onelogin-adc-logs-production) sin validar su propiedad. Un atacante que registre este bucket no reclamado puede empezar a recibir archivos de registro de otros inquilinos de OneLogin. Estos registros pueden contener datos confidenciales, como tokens de directorio, metadatos de usuario y configuración del entorno. Esto facilita la filtración de secretos entre inquilinos, lo que podría permitir la recuperación de claves de firma JWT y la suplantación de identidad de usuarios."
    }
  ],
  "lastModified": "2026-06-17T09:13:24.507",
  "sourceIdentifier": "disclosure@vulncheck.com"
}