Vault Enterprise, when configured with performance standby nodes and a configured audit device, will inadvertently log request headers on the standby node. These logs may have included sensitive HTTP request information in cleartext.
This vulnerability, CVE-2024-2877, was fixed in Vault Enterprise 1.15.8.
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
While logging all information may be helpful during development stages, it is important that logging levels be set appropriately before a product ships so that sensitive user data and system information are not accidentally exposed to potential attackers. Different log files may be produced and stored for: