CWE-1299: Missing Protection Mechanism for Alternate… | Glexia
CWE-1299 (Missing Protection Mechanism for Alternate Hardware Interface) weakness overview with consequences, detection methods, mitigations, related CVEs and…
Glexia's Take · Automated analysis
CWE-1299: Missing Protection Mechanism for Alternate Hardware Interface
Missing Protection Mechanism for Alternate Hardware Interface represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Executive Impact
- Confidentiality,Integrity,Availability,Access Control: Modify Memory,Read Memory,DoS: Resource Consumption (Other),Execute Unauthorized Code or Commands,Gain Privileges or Assume Identity,Alter Execution Logic,Bypass Protection Mechanism,Quality Degradation
Developer Pattern
CWE-1299 is the kind of defect developers can usually prevent with explicit validation, safer framework defaults, and tests that exercise hostile input or unsafe state transitions.
Automation confidence
high confidence from CWE-1299, 4.20.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Official CWE Definition
CWE-1299: Missing Protection Mechanism for Alternate Hardware Interface
The lack of protections on alternate paths to access control-protected assets (such as unprotected shadow registers and other external facing unguarded interfaces) allows an attacker to bypass existing protections to the asset that are only performed against the primary path.
Developer And Remediation Guidance
How teams prevent and detect this weakness
Causes
- The bugged line of code is repeated in the Bad example above. The weakness arises from the fact that the SECURE_ME register can be modified by writing to the shadow register COPY_OF_SECURE_ME. The address of COPY_OF_SECURE_ME should also be included in the check. That buggy line of code should instead be replaced as shown in the Good Code Snippet below.
Remediation
- Requirements: Protect assets from accesses against all potential interfaces and alternate paths.
- Architecture and Design: Protect assets from accesses against all potential interfaces and alternate paths.
- Implementation: Protect assets from accesses against all potential interfaces and alternate paths.
Detection
- Code review
- SAST
- DAST
- Focused regression tests
Mappings
Related CVEs, CWEs, and ATT&CK context
Related CWEs
ATT&CK Relevance
ATT&CK relevance is shown only when reviewed or responsibly inferred.