CWE-1189: Improper Isolation of Shared Resources on… | Glexia
CWE-1189 (Improper Isolation of Shared Resources on System-on-a-Chip (SoC)) weakness overview with consequences, detection methods, mitigations, related CVEs and…
Glexia's Take · Automated analysis
CWE-1189: Improper Isolation of Shared Resources on System-on-a-Chip (SoC)
Improper Isolation of Shared Resources on System-on-a-Chip (SoC) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Executive Impact
- Access Control: Bypass Protection Mechanism: If resources being used by a trusted user are shared with an untrusted user, the untrusted user may be able to modify the functionality of the shared resource of the trusted user.
- Integrity: Quality Degradation: The functionality of the shared resource may be intentionally degraded.
Developer Pattern
CWE-1189 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-1189, 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-1189: Improper Isolation of Shared Resources on System-on-a-Chip (SoC)
The System-On-a-Chip (SoC) does not properly isolate shared resources between trusted and untrusted agents.
Developer And Remediation Guidance
How teams prevent and detect this weakness
Causes
- Consider the following SoC design. The Hardware Root of Trust (HRoT) local SRAM is memory mapped in the core{0-N} address space. The HRoT allows or disallows access to private memory ranges, thus allowing the sram to function as a mailbox for communication between untrusted and trusted HRoT partitions.
Remediation
- Architecture and Design:
Detection
- Automated Dynamic Analysis:
Mappings
Related CVEs, CWEs, and ATT&CK context
Related CWEs
- CWE-1331: Improper Isolation of Shared Resources in Network On Chip (NoC)
- CWE-653: Improper Isolation or Compartmentalization
- CWE-668: Exposure of Resource to Wrong Sphere
- CWE-1303: Non-Transparent Sharing of Microarchitectural Resources
- CWE-1331: Improper Isolation of Shared Resources in Network On Chip (NoC)
ATT&CK Relevance
ATT&CK relevance is shown only when reviewed or responsibly inferred.