Techniques › T1495 › AN0477
AN0477 Analytic 0477
Network Devices · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Firmware image uploaded via TFTP/SCP or web interface followed by reboot or unexpected loss of connectivity.</p>
- Detects
- T1495 Firmware Corruption
- Part of
- DET0167 Firmware Modification via Flash Tool or Corrupted Firmware Upload
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| NSM:Flow | large upload to firmware interface port or path | DC0085 Network Traffic Content |
| networkdevice:firmware | Firmware update initiated or bootloader tampering detected | DC0004 Firmware Modification |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
UploadSizeThreshold | Size of firmware images varies by vendor |
RebootWindow | Reboots outside of patch maintenance may be suspicious |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2024-54085 | AMI MegaRAC SPx | Mapped |
| CVE-2025-21480 | Qualcomm Multiple Chipsets | Mapped |