CWE-1220 Insufficient Granularity of Access Control

The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack the required granularity

• Confidentiality, Integrity, Availability, Access Control: Modify Memory, Read Memory, Execute Unauthorized Code or Commands, Gain Privileges or Assume Identity, Bypass Protection Mechanism, Other — A common weakness that can exist in such protection schemes is that access controls or policies are not granular enough, which renders the control policy too broad, because it allows accesses from unauthorized agents to security-sensitive assets. This condition allows agents beyond trusted agents to access assets and could lead to a loss of functionality or the ability to set up the device securely. This further results in security risks from leaked, sensitive, key material to modification of device configuration.

• [Architecture and Design, Implementation, Testing] • Access-control-policy protections must be reviewed for design inconsistency and common weaknesses. • Access-control-policy definition and programming flow must be tested in pre-silicon, post-silicon testing.

• CVE-2022-24985: A form hosting website only checks the session authentication status for a single form, making it possible to bypass authentication when there are multiple forms • CVE-2021-36934: An operating system has an overly permissive Access Control List on some system files, including those related to user passwords