Covert communications through network configuration messages

被引：10
|
作者：
Rios, Ruben [1 ]
Onieva, Jose A. [1 ]
Lopez, Javier [1 ]
机构：
[1] Univ Malaga, Network Informat & Comp Secur NICS Lab, E-29071 Malaga, Spain
来源：
COMPUTERS & SECURITY | 2013年 / 39卷
关键词：
System information security; Network security; Covert channels; Information warfare; Intrusion detection; CHANNELS;
D O I：
10.1016/j.cose.2013.03.004
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Covert channels are a form of hidden communication that may violate the integrity of systems. Since their birth in Multi-Level Security systems in the early 70's they have evolved considerably, such that new solutions have appeared for computer networks mainly due to vague protocols specifications. In this paper we concentrate on short-range covert channels and analyze the opportunities of concealing data in various extensively used protocols today. From this analysis we observe several features that can be effectively exploited for subliminal data transmission in the Dynamic Host Configuration Protocol (DHCP). The result is a proof-of-concept implementation, HIDE_DHCP, which integrates three different covert channels each of which accommodate to different stealthiness and capacity requirements. Finally, we provide a theoretical and experimental analysis of this tool in terms of its reliability, capacity, and detectability. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：34 / 46
页数：13
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