The commandline package update tool zypper writes HTTP proxy credentials into its logfile, allowing local attackers to gain access to proxies used.
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 |
|---|---|---|---|
| Zypper | Opensuse | - (including) | - (including) |
| Zypper | Ubuntu | hirsute | * |
| Zypper | Ubuntu | impish | * |
| Zypper | Ubuntu | kinetic | * |
| Zypper | Ubuntu | lunar | * |
| Zypper | Ubuntu | mantic | * |
| Zypper | Ubuntu | trusty | * |
| Zypper | 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: