Identifying Insufficient User ID Randomization in Authd
CVE-2024-9312 
7.5HIGH
What is CVE-2024-9312?
An authentication vulnerability exists in Authd, up to version 0.3.6, where insufficient randomization of user IDs can lead to collisions. This flaw allows a local attacker, capable of registering usernames, to spoof another user's ID, subsequently gaining unauthorized access to their privileges. This situation poses a significant risk to user security and data integrity, necessitating immediate remediation.
Affected Version(s)
Authd Linux 0 < 0.3.6
References
CVSS V3.1
Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
 High
Availability:
 High
Attack Vector:
Local
Attack Complexity:
 High
Privileges Required:
 High
User Interaction:
 None
Scope:
 Changed
Timeline
- Vulnerability published 
- Vulnerability Reserved 
Credit
nicoo
Michael Gebetsroither
Jamie Bliss
Adrian Dombeck
Mark Esler
