Possible F5 iControl REST Remote Code Execution via Util Bash Endpoint

ATT&CK techniques

Initial Access → Execution

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
- T1059.004Unix Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects POST requests to the F5 iControl REST util bash endpoint which grants arbitrary command execution when reached after the SSRF authentication bypass of CVE-2021-22986 documented by NCC Group. Access to this endpoint by an unauthenticated actor indicates full appliance compromise.

Reporting behind it

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Possible F5 iControl REST Remote Code Execution via Util Bash Endpoint

Pivot detection · T1059.004 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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