CVE-2024-3183
Full vulnerability record from the local CVENow database.
Description
A vulnerability was found in FreeIPA in a way when a Kerberos TGS-REQ is encrypted using the client’s session key. This key is different for each new session, which protects it from brute force attacks. However, the ticket it contains is encrypted using the target principal key directly. For user principals, this key is a hash of a public per-principal randomly-generated salt and the user’s password. If a principal is compromised it means the attacker would be able to retrieve tickets encrypted to any principal, all of them being encrypted by their own key directly. By taking these tickets and salts offline, the attacker could run brute force attacks to find character strings able to decrypt tickets when combined to a principal salt (i.e. find the principal’s password).
Severity
HIGH
CVSS score
8.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2024-06-12 09:15:18.683000
Last modified
2026-11-04 22:17:21.840000
View original CVE JSON
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"id": "CVE-2024-3183",
"sourceIdentifier": "[email protected]",
"published": "2024-06-12T09:15:18.683",
"lastModified": "2026-11-04T22:17:21.840",
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"value": "A vulnerability was found in FreeIPA in a way when a Kerberos TGS-REQ is encrypted using the client’s session key. This key is different for each new session, which protects it from brute force attacks. However, the ticket it contains is encrypted using the target principal key directly. For user principals, this key is a hash of a public per-principal randomly-generated salt and the user’s password.\r\n\r\nIf a principal is compromised it means the attacker would be able to retrieve tickets encrypted to any principal, all of them being encrypted by their own key directly. By taking these tickets and salts offline, the attacker could run brute force attacks to find character strings able to decrypt tickets when combined to a principal salt (i.e. find the principal’s password)."
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"value": "Se encontró una vulnerabilidad en FreeIPA cuando un Kerberos TGS-REQ se cifra utilizando la clave de sesión del cliente. Esta clave es diferente para cada nueva sesión, lo que la protege de ataques de fuerza bruta. Sin embargo, el ticket que contiene se cifra utilizando directamente la clave principal de destino. Para los usuarios principales, esta clave es un hash de un salt público generado aleatoriamente por principal y la contraseña del usuario. Si un principal se ve comprometido, significa que el atacante podría recuperar tickets cifrados para cualquier principal, y todos ellos estarán cifrados directamente con su propia clave. Al desconectar estos tickets y salts, el atacante podría ejecutar ataques de fuerza bruta para encontrar cadenas de caracteres capaces de descifrar tickets cuando se combinan con un salt principal (es decir, encontrar la contraseña del principal)."
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