Usage examples

CLI

General help

$ chronoleak -h
bin/chronoleak <IP_address_or_domain>

Version: 0.0.1 - ICMP Timestamp Remote Time Leaker

Nessus - ICMP Timestamp Request Remote Date Disclosure - https://www.tenable.com/plugins/nessus/10114
CVE-1999-0524 - https://www.tenable.com/cve/CVE-1999-0524

Examples

It will display remote time and you local time both in UTC and in your local timezone (ex: CET), as well as display the time shift between you and the remote machine.

$ chronoleak 10.10.205.11
Remote time:
23:23:00 UTC
00:23:00 CET

Local time:
23:23:01 UTC
00:23:01 CET

Time shift:
00:00:01

Note: the CLI requires to have hping installed. See the package for your distro on repology. ChronoLeak will look for the hping3 command to be accessible in your PATH.

Library

The library will only do time conversion and will not retrieve the ICMP timestamp since this requires root privileges. That’s why it’s handled only in the CLI with system call to hping and sudo elevation of privilege.

require 'chronoleak'

timestamp_in_ms = 76853656

# Transform a ICMP timestamp to a Time object
remote_time = ChronoLeak.timestamp_to_time(timestamp_in_ms) # => 1970-01-01 22:20:53 +0100

# Display remote time in humanly readable format
ChronoLeak.format_time(remote_time) # => "22:20:53 CET"