MITRE ATT&CKsub-technique
T1542.005 TFTP Boot
- Domain
- enterprise
- Tactics
- Stealth, Persistence
- Platforms
- Network Devices
- Version
- 2.0
- Created
- 2020-10-20
Description
Adversaries may abuse netbooting to load an unauthorized network device operating system from a Trivial File Transfer Protocol (TFTP) server. TFTP boot (netbooting) is commonly used by network administrators to load configuration-controlled network device images from a centralized management server. Netbooting is one option in the boot sequence and can be used to centralize, manage, and control device images.
Adversaries may manipulate the configuration on the network device specifying use of a malicious TFTP server, which may be used in conjunction with Modify System Image to load a modified image on device startup or reset. The unauthorized image allows adversaries to modify device configuration, add malicious capabilities to the device, and introduce backdoors to maintain control of the network device while minimizing detection through use of a standard functionality. This technique is similar to ROMMONkit and may result in the network device running a modified image.
Related
Subtechnique of · MITRE ATT&CK (1)
- T1542 Pre-OS Boot technique
Referenced by MITRE ATT&CK · mitigates (6)
Referenced by Compliance · mitigates (26)
- CIS-12.2 Establish and Maintain a Secure Network Architecture CIS Safeguard v8.1
- CIS-12.6 Use of Secure Network Management and Communication Protocols CIS Safeguard v8.1
- CIS-13.8 Deploy a Network Intrusion Prevention Solution CIS Safeguard v8.1
- NIST-AC-2 Account Management NIST 800-53 control
- NIST-AC-3 Access Enforcement NIST 800-53 control
- NIST-AC-5 Separation of Duties NIST 800-53 control
- NIST-AC-6 Least Privilege NIST 800-53 control
- NIST-CA-7 Continuous Monitoring NIST 800-53 control
- NIST-CM-2 Baseline Configuration NIST 800-53 control
- NIST-CM-3 Configuration Change Control NIST 800-53 control
- NIST-CM-5 Access Restrictions for Change NIST 800-53 control
- NIST-CM-6 Configuration Settings NIST 800-53 control
- NIST-CM-7 Least Functionality NIST 800-53 control
- NIST-CM-8 System Component Inventory NIST 800-53 control
- NIST-IA-2 Identification and Authentication (Organizational Users) NIST 800-53 control
- NIST-IA-7 Cryptographic Module Authentication NIST 800-53 control
- NIST-IA-8 Identification and Authentication (Non-organizational Users) NIST 800-53 control
- NIST-RA-5 Vulnerability Monitoring and Scanning NIST 800-53 control
- NIST-RA-9 Criticality Analysis NIST 800-53 control
- NIST-SA-10 Developer Configuration Management NIST 800-53 control
- NIST-SA-11 Developer Testing and Evaluation NIST 800-53 control
- NIST-SC-34 Non-modifiable Executable Programs NIST 800-53 control
- NIST-SC-7 Boundary Protection NIST 800-53 control
- NIST-SI-2 Flaw Remediation NIST 800-53 control
- NIST-SI-4 System Monitoring NIST 800-53 control
- NIST-SI-7 Software, Firmware, and Information Integrity NIST 800-53 control
References
- https://community.cisco.com/t5/security-blogs/attackers-continue-to-target-legacy-devices/ba-p/4169954 Cisco Blog Legacy Device Attacks