CVE-2021-31798

El espacio de claves efectivo usado para cifrar la caché en CyberArk Credential Provider versiones anteriores a 12.1, presenta una entropía baja, y en determinadas condiciones un usuario local malicioso puede obtener el texto plano de los archivos de la caché

CyberArk Credential Providers can be configured to retain passwords, password metadata, and other application properties in a local, encrypted cache file. Under certain conditions, the effective key space used to encrypt the cache is significantly reduced. For an attacker who understands the key derivation scheme and encryption mechanics, full access to the information used to derive the encryption key is sufficient to reduce effective key space to one. Even in cases where the information is not known, the encrypted cache files will likely be unable to withstand a brute force attack. However, the severity of this issue is partially mitigated by the privilege level required (root) for access. Versions prior to 12.1 are affected.