T1556.004 Network Device Authentication
sub-techniqueEnterpriseAdversaries may use Patch System Image to hard code a password in the operating system, thus bypassing of native authentication mechanisms for local accounts on network devices. Modify System Image may include implanted code to the operating system for network devices to provide access for adversaries using a specific password. The modification includes a specific password which is implanted in the operating system image via the patch. Upon authentication attempts, the inserted code will first check to see if the user input is the password. If so, access is granted. Otherwise, the implanted code will pass the credentials on for verification of potentially valid credentials.
platforms
Platforms this applies to.
tactics
ATT&CK tactics this technique serves.
sub-technique of
The broader entity this sits under.
mitigations
ATT&CK mitigations that reduce this.
detected by (2)
Data components that detect this.
NIST CSF 2.0 — areas of relevance (Protect / Detect)
NIST CSF 2.0 areas this most relates to (evidence-ranked).
- PR.AAIdentity Management, Authentication, and Access Controlstrong · backed by 7 of 13 mapped controls
- DE.CMContinuous Monitoringmoderate · backed by 4 of 13 mapped controls
- PR.DSData Securitymoderate · backed by 4 of 13 mapped controls
Derived from MITRE CTID (Apache-2.0) and the NIST 800-53 ↔ CSF crosswalk (public domain). Indicative relevance along the Protect/Detect axis — not a compliance assessment or coverage claim.
mitigating controls (13)
Security controls that mitigate this.
software (3)
Malware and tools associated with this.
Detected by (Sigma) (1)
Sigma detection rules related to this.
source
Where this definition is published.