Weakness · High

CWE-1280: Access Control Check Implemented After Asset is Accessed

What it is

A product's hardware-based access control check occurs after the asset has been accessed.

MITRE CWE 4.19.1

Severity (our rating)
High
Likelihood of exploit
Not rated by MITRE
Introduced during
Implementation
Exploited in the wild
No CVE in CISA's catalog

In more detail

The product implements a hardware-based access control check. The asset should be accessible only after the check is successful. If, however, this operation is not atomic and the asset is accessed before the check is complete, the security of the system may be compromised.

What an attacker can do

  • Modify Memory (Access Control, Confidentiality, Integrity)
  • Read Memory (Access Control, Confidentiality, Integrity)
  • Modify Application Data (Access Control, Confidentiality, Integrity)
  • Read Application Data (Access Control, Confidentiality, Integrity)
  • Gain Privileges or Assume Identity (Access Control, Confidentiality, Integrity)
  • Bypass Protection Mechanism (Access Control, Confidentiality, Integrity)

How to prevent it

Implementation

  • Implement the access control check first. Access should only be given to asset if agent is authorized.

CWE-1280 on MITRE's CWE site

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Source: MITRE Common Weakness Enumeration, CWE version 4.19.1. CWE is a trademark of The MITRE Corporation.