Using AIX's "Maintenance Mode", it is possible for an attacker with physical access to the machine to gain privileged access. The issue is due to the maintenance prompt allowing you to spawn a sub-shell, that will be executed with root privileges. While in maintenance mode, no password prompt will appear.
Classification
Location:
Physical Access Required
Attack Type:
Other
Impact:
Loss of Integrity
Solution:
Solution Unknown
Exploit:
Exploit Public
Solution
OSVDB is not aware of a solution for this vulnerability.