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CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0

Vault Community and Vault Enterprise (“Vault”) clusters using Vault’s Integrated Storage backend are vulnerable to a denial-of-service (DoS) attack through memory exhaustion through a Raft cluster join API endpoint . An attacker may send a large volume of requests to the endpoint which may cause Vault to consume excessive system memory resources, potentially leading to a crash of the underlying system and the Vault process itself. This vulnerability, CVE-2024-8185, is fixed in Vault Community 1.18.1 and Vault Enterprise 1.18.1, 1.17.8, and 1.16.12. • https://discuss.hashicorp.com/t/hcsec-2024-26-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-processing-raft-cluster-join-requests/71047 • CWE-636: Not Failing Securely ('Failing Open') •

CVSS: 7.2EPSS: 0%CPEs: 2EXPL: 0

A privileged Vault operator with write permissions to the root namespace’s identity endpoint could escalate their own or another user’s privileges to Vault’s root policy. Fixed in Vault Community Edition 1.18.0 and Vault Enterprise 1.18.0, 1.17.7, 1.16.11, and 1.15.16. • https://discuss.hashicorp.com/t/hcsec-2024-21-vault-operators-in-root-namespace-may-elevate-their-privileges/70565 • CWE-266: Incorrect Privilege Assignment •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0

Vault’s SSH secrets engine did not require the valid_principals list to contain a value by default. If the valid_principals and default_user fields of the SSH secrets engine configuration are not set, an SSH certificate requested by an authorized user to Vault’s SSH secrets engine could be used to authenticate as any user on the host. Fixed in Vault Community Edition 1.17.6, and in Vault Enterprise 1.17.6, 1.16.10, and 1.15.15. • https://discuss.hashicorp.com/t/hcsec-2024-20-vault-ssh-secrets-engine-configuration-did-not-restrict-valid-principals-by-default/70251 • CWE-732: Incorrect Permission Assignment for Critical Resource •

CVSS: 6.2EPSS: 0%CPEs: 2EXPL: 0

Vault Community Edition and Vault Enterprise experienced a regression where functionality that HMAC’d sensitive headers in the configured audit device, specifically client tokens and token accessors, was removed. This resulted in the plaintext values of client tokens and token accessors being stored in the audit log. This vulnerability, CVE-2024-8365, was fixed in Vault Community Edition and Vault Enterprise 1.17.5 and Vault Enterprise 1.16.9. Vault Community Edition y Vault Enterprise experimentaron una regresión en la que se eliminó la funcionalidad que codificaba mediante HMAC los encabezados confidenciales en el dispositivo de auditoría configurado, específicamente los tokens de cliente y los descriptores de acceso de token. Esto provocó que los valores de texto sin formato de los tokens de cliente y los descriptores de acceso de token se almacenaran en el registro de auditoría. • https://discuss.hashicorp.com/t/hcsec-2024-18-vault-leaks-client-token-and-token-accessor-in-audit-devices • CWE-532: Insertion of Sensitive Information into Log File •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0

Vault and Vault Enterprise did not properly handle requests originating from unauthorized IP addresses when the TCP listener option, proxy_protocol_behavior, was set to deny_unauthorized. When receiving a request from a source IP address that was not listed in proxy_protocol_authorized_addrs, the Vault API server would shut down and no longer respond to any HTTP requests, potentially resulting in denial of service. While this bug also affected versions of Vault up to 1.17.1 and 1.16.5, a separate regression in those release series did not allow Vault operators to configure the deny_unauthorized option, thus not allowing the conditions for the denial of service to occur. Fixed in Vault and Vault Enterprise 1.17.2, 1.16.6, and 1.15.12. Vault y Vault Enterprise no manejaron adecuadamente las solicitudes originadas en direcciones IP no autorizadas cuando la opción de escucha TCP, proxy_protocol_behavior, estaba configurada en deny_unauthorized. Al recibir una solicitud de una dirección IP de origen que no figuraba en proxy_protocol_authorized_addrs, el servidor API de Vault se cerraba y ya no respondía a ninguna solicitud HTTP, lo que podría provocar una denegación de servicio. Si bien este error también afectó a las versiones de Vault hasta 1.17.1 y 1.16.5, una regresión separada en esas series de versiones no permitió a los operadores de Vault configurar la opción deny_unauthorized, por lo que no permitió que se cumplieran las condiciones para la denegación de servicio. • https://discuss.hashicorp.com/t/hcsec-2024-14-vault-vulnerable-to-denial-of-service-when-setting-a-proxy-protocol-behavior/68518 • CWE-703: Improper Check or Handling of Exceptional Conditions •