Scientific Linux Security Update : grub2 on SL7.x x86_64
Medium Nessus Plugin ID 87586
SynopsisThe remote Scientific Linux host is missing one or more security updates.
DescriptionA flaw was found in the way the grub2 handled backspace characters entered in username and password prompts. An attacker with access to the system console could use this flaw to bypass grub2 password protection and gain administrative access to the system.
This update also fixes the following bug :
- When upgrading from Scientific Linux 7.1 and earlier, a configured boot password was not correctly migrated to the newly introduced user.cfg configuration files. This could possibly prevent system administrators from changing grub2 configuration during system boot even if they provided the correct password. This update corrects the password migration script and the incorrectly generated user.cfg file.
SolutionUpdate the affected packages.