The Identity Firewall (IDFW) functionality in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to change the user-cache contents via a replay attack involving crafted RADIUS Change of Authorization (CoA) messages, aka Bug ID CSCuj45332.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.