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TECHNIQUES
PRE-ATT&CK
Priority Definition Planning
Priority Definition Direction
Target Selection
Technical Information Gathering
People Information Gathering
Organizational Information Gathering
Technical Weakness Identification
People Weakness Identification
Organizational Weakness Identification
Adversary OPSEC
Establish & Maintain Infrastructure
Persona Development
Build Capabilities
Test Capabilities
Stage Capabilities
Enterprise
Initial Access
Phishing
Supply Chain Compromise
Valid Accounts
Execution
Command and Scripting Interpreter
Inter-Process Communication
Scheduled Task/Job
System Services
User Execution
Persistence
Account Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create Account
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Office Application Startup
Pre-OS Boot
Scheduled Task/Job
Server Software Component
Traffic Signaling
Valid Accounts
Privilege Escalation
Abuse Elevation Control Mechanism
Access Token Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Process Injection
Scheduled Task/Job
Valid Accounts
Defense Evasion
Abuse Elevation Control Mechanism
Access Token Manipulation
Execution Guardrails
File and Directory Permissions Modification
Hide Artifacts
Hijack Execution Flow
Impair Defenses
Indicator Removal on Host
Masquerading
Modify Authentication Process
Modify Cloud Compute Infrastructure
Obfuscated Files or Information
Pre-OS Boot
Process Injection
Signed Binary Proxy Execution
Signed Script Proxy Execution
Subvert Trust Controls
Traffic Signaling
Trusted Developer Utilities Proxy Execution
Use Alternate Authentication Material
Valid Accounts
Virtualization/Sandbox Evasion
Credential Access
Brute Force
Credentials from Password Stores
Input Capture
Man-in-the-Middle
Modify Authentication Process
OS Credential Dumping
Steal or Forge Kerberos Tickets
Unsecured Credentials
Discovery
Account Discovery
Permission Groups Discovery
Software Discovery
Virtualization/Sandbox Evasion
Lateral Movement
Remote Service Session Hijacking
Remote Services
Use Alternate Authentication Material
Collection
Archive Collected Data
Data from Information Repositories
Data Staged
Email Collection
Input Capture
Man-in-the-Middle
Command and Control
Application Layer Protocol
Data Encoding
Data Obfuscation
Dynamic Resolution
Encrypted Channel
Proxy
Traffic Signaling
Web Service
Exfiltration
Exfiltration Over Alternative Protocol
Exfiltration Over Other Network Medium
Exfiltration Over Physical Medium
Exfiltration Over Web Service
Impact
Data Manipulation
Defacement
Disk Wipe
Endpoint Denial of Service
Network Denial of Service
Mobile
Initial Access
Execution
Persistence
Privilege Escalation
Defense Evasion
Credential Access
Discovery
Lateral Movement
Collection
Command and Control
Exfiltration
Impact
Network Effects
Remote Service Effects
  1. Home
  2. Techniques
  3. Mobile
  4. Exploit TEE Vulnerability

Exploit TEE Vulnerability

A malicious app or other attack vector could be used to exploit vulnerabilities in code running within the Trusted Execution Environment (TEE) [1]. The adversary could then obtain privileges held by the TEE potentially including the ability to access cryptographic keys or other sensitive data [2]. Escalated operating system privileges may be first required in order to have the ability to attack the TEE [3]. If not, privileges within the TEE can potentially be used to exploit the operating system [4].

ID: T1405
Sub-techniques:  No sub-techniques
Tactic Type: Post-Adversary Device Access
Tactics: Credential Access, Privilege Escalation
Platforms: Android
MTC ID: APP-27
Version: 1.0
Created: 25 October 2017
Last Modified: 17 October 2018

Mitigations

Mitigation Description
Application Vetting
Security Updates
Use Recent OS Version

References

  1. Josh Thomas and Charles Holmes. (2015, September). An infestation of dragons: Exploring vulnerabilities in the ARM TrustZone architecture. Retrieved December 9, 2016.
  2. laginimaineb. (2016, June). Extracting Qualcomm's KeyMaster Keys - Breaking Android Full Disk Encryption. Retrieved December 9, 2016.
  1. Jan-Erik Ekberg. (2015, September 10). Android and trusted execution environments. Retrieved December 9, 2016.
  2. laginimaineb. (2016, May). War of the Worlds - Hijacking the Linux Kernel from QSEE. Retrieved December 21, 2016.