Sensitive data could be exposed in logs of subiquity version 23.09.1 and earlier. An attacker in the adm group could use this information to find hashed passwords and possibly escalate their privilege.
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Subiquity | Canonical | * | 23.09.1 (including) |
| Subiquity | Ubuntu | bionic | * |
| Subiquity | Ubuntu | trusty | * |
| Subiquity | Ubuntu | xenial | * |
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: