Race condition in IPCop (aka IPCop Firewall) before 1.4.10 might allow local users to overwrite system configuration files and gain privile…

Race condition in IPCop (aka IPCop Firewall) before 1.4.10 might allow local users to overwrite system configuration files and gain privileges by replacing a backup archive during the time window when the archive is owned by "nobody" but not yet encrypted, then executing ipcoprscfg to restore from this backup.