Title: Covert Channel using the IP Timestamp Option of an IPv4 Packet

Year of Publication: Jan - 2015
Page Numbers: 48-51
Authors: Hassan Alsaffar , Daryl Johnson
Conference Name: The International Conference on Electrical and Bio-medical Engineering, Clean Energy and Green Computing (EBECEGC2015)
- United Arab Emirates


The TCP/IP protocol suite is known to be lacking security in many aspects, which may allow an attacker to leverage them using some techniques in the form of covert communications. Secret messages could be embedded into one of the TCP/IP header fields and possibly not get detected by various firewalls or intrusion detection systems (IDS’s). This paper proposes a novel covert channel utilizing the IP timestamp option inside an IPv4 packet header to exchange a secret message with another party.