Infrastructure Layer
Time Travel Attack
The Time Travel Gremlin modifies the system time of the target's operating system. This Gremlin also optionally blocks all traffic over the standard NTP port, which is equivalent to running a Blackhole Gremlin against outgoing port 123.
Linux
The Time Travel Gremlin issues a settimeofday syscall. See settimeofday(2)
This Gremlin requires the SYS_TIME capability, which is enabled for Gremlin by default at installation time. See capabilities(7)
Options
| Parameter | Flag | Required | Default | Version | Description |
|---|---|---|---|---|---|
| NTP | -n | False | False | 1.5.0 | Disable NTP from correcting systemtime. |
| Offset | -o int | False | 86400 | 1.5.0 | The offset to the current time (seconds). |
| Length | -l int | False | 60 | 1.5.0 | The length of the attack (seconds). |