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A valuable extension to the Hacking Exposed franchise; the authors do a great job of
incorporating the vast pool of knowledge of security testing from the team who built the Open
Source Security Testing Methodology Manual (OSSTMM) into an easy-to-digest, concise read
on how Linux systems can be hacked.
Steven Splaine
Author, The Web Testing Handbook and Testing Web Security
Industry-Recognized Software Testing Expert
With Pete being a pioneer of open-source security methodologies, directing ISECOM, and
formulating the OPSA certification, few people are more qualified to write this book than him.
Matthew Conover
Principal Software Engineer
Core Research Group, Symantec Research Labs
You’ll feel as if you are sitting in a room with the authors as they walk you through the steps
the bad guys take to attack your network and the steps you need to take to protect it. Or, as the
authors put it: “Separating the asset from the threat.” Great job, guys!
Michael T. Simpson, CISSP
Senior Staff Analyst
PACAF Information Assurance
An excellent resource for security information, obviously written by those with real-world
experience. The thoroughness of the information is impressive— very useful to have it presented in
one place.
Jack Louis
Security Researcher
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HACKING EXPOSED LINUX:
™
LINUX SECURITY SECRETS
& SOLUTIONS
THIRD EDITION
ISECOM
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DOI: 10.1036/0072262575
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As Project Leader, I want to dedicate this book to all the
volunteers who helped out and contributed through
ISECOM to make sense of security so the rest of the world
can fi nd a little more peace. It’s the selfl ess hackers like
them who make being a hacker such a cool thing.
I also need to say that all this work would be overwhelming
if not for my unbelievably supportive wife, Marta. Even my
three children, Ayla, Jace, and Aidan, who can all put
ISECOM on the list of their fi rst spoken words, were all
very helpful in the making of this book.
—Pete Herzog
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ABOUT THE AUTHORS
This book was written according to the ISECOM (Institute for Security and Open
Methodologies) project methodology. ISECOM is an open, nonprofit security research
and certification organization established in January 2001 with the mission to make sense
of security. They release security standards and methodologies under the Open
Methodology License for free public and commercial use.
This book was written by multiple authors, reviewers, and editors—too many to all
be listed here—who collaborated to create the best Linux hacking book they could. Since
no one person can master everything you may want to do in Linux, a community wrote
the book on how to secure it.
The following people contributed greatly and should be recognized.
About the Project Leader
Pete Herzog
As Managing Director, Pete is the co-founder of ISECOM and creator of the
OSSTMM. At work, Pete focuses on scientific, methodical testing for controlling
the quality of security and safety. He is currently managing projects in development
that include security for homeowners, hacking lessons for teenagers, source-
code static analysis, critical-thinking training for children, wireless certification
exam and training for testing the operational electromagnetic spectrum, a
legislator’s guide to security solutions, a Dr. Seuss–type children’s book in metered prose
and rhyme, a security analysis textbook, a guide on human security, solutions for
university security and safety, a guide on using security for national reform, a guide for
factually calculating trust for marriage counselors and family therapists, and of course,
theOpen Source Security Testing Methodology Manual (OSSTMM).
In addition to managing ISECOM projects, Pete teaches in the Masters for Security
program at La Salle University in Barcelona and supports the worldwide security
certification network of partners and trainers. He received a bachelor’s degree from
Syracuse University. He currently only takes time off to travel in Europe and North
America with his family.
About the Project Managers
Marta Barceló
Marta Barceló is Director of Operations, co-founder of ISECOM, and is
responsible for ISECOM business operations. In early 2003, she designed the
process for the Hacker Highschool project, developing and designing teaching
methods for the website and individual and multilingual lessons. Later that
same year, she developed the financial and IT operations behind the ISESTORM
conferences. In 2006, Marta was invited to join the EU-sponsored Open Trusted
Computing consortium to manage ISECOM’s participation within the project, including
financial and operating procedures. In 2007, she began the currently running advertising
campaign for ISECOM, providing all creative and technical skills as well as direction.
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Marta maintains the media presence of all ISECOM projects and provides technical
server administration for the websites. She attended Mannheim University of Applied
Sciences in Germany and graduated with a masters in computer science.
In addition to running ISECOM, Marta has a strong passion for the arts, especially
photography and graphic design, and her first degree is in music from the Conservatori
del Liceu in Barcelona.
Rick Tucker
Rick Tucker has provided ISECOM with technical writing, editing, and general
support on a number of projects, including SIPES and Hacker Highschool. He
currently resides in Portland, Oregon, and works for a small law firm as the go-
to person for all manner of mundane and perplexing issues.
About the Authors
Andrea Barisani
Andrea Barisani is an internationally known security researcher. His
professional career began eight years ago, but it all really started with a
Commodore-64 when he was ten-years-old. Now Andrea is having fun with
large-scale IDS/firewall-deployment administration, forensic analysis,
vulnerability assessment, penetration testing, security training, and his
open-source projects. He eventually found that system and security administration are
the only effective way to express his need for paranoia.
Andrea is the founder and project coordinator of the oCERT effort, the Open Source
CERT. He is involved in the Gentoo project as a member of the Security and Infrastructure
Teams and is part of Open Source Security Testing Methodology Manual, becoming an
ISECOM Core Team member. Outside the community, he is the co-founder and chief
security engineer of Inverse Path, Ltd. He has been a speaker and trainer at the PacSec,
CanSecWest, BlackHat, and DefCon conferences among many others.
Thomas Bader
Thomas Bader works at Dreamlab Technologies, Ltd., as a trainer and solution
architect. Since the early summer of 2007, he has been in charge of ISECOM
courses throughout Switzerland. As an ISECOM team member, he participates
in the development of the OPSE certification courses, the ISECOM test network,
and the OSSTMM.
From the time he first came into contact with open-source software in 1997,
he has specialized in network and security technologies. Over the following years, he
has worked in this field and gained a great deal of experience with different firms as a
consultant and also as a technician. Since 2001, Thomas has worked as a developer and
trainer of LPI training courses. Since 2006, he has worked for Dreamlab Technologies,
Ltd., the official ISECOM representative for the German- and French-speaking countries
of Europe.
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Simon Biles
Simon Biles is the director and lead consultant at Thinking Security, a UK-based
InfoSec Consultancy. He is the author of The Snort Cookbook from O’Reilly, as well
as other material for ISECOM, Microsoft, and SysAdmin magazine. He is in
currently pursuing his masters in forensic computing at the Defence Academy in
Shrivenham. He holds a CISSP, OPSA, is an ISO17799 Lead Auditor, and is also a
Chartered Member of the British Computer Society. He is married with children
(several) and reptiles (several). His wife is not only the most beautiful woman ever, but
alsoincredibly patient when he says things like “I’ve just agreed to ... <insert time-drain
here>.” In his spare time, when that happens, he likes messing about with Land Rovers
and is the proud owner of a semi-reliable, second-generation Range Rover.
Colby Clark
Colby Clark is Guidance Software’s Network Security Manager and has the day-
to-day responsibility for overseeing the development, implementation, and
management of their information security program. He has many years of
security-related experience and has a proven track record with Fortune 500
companies, law firms, financial institutions, educational institutions,
telecommunications companies, and other public and private companies in
regulatory compliance consulting and auditing (Sarbanes Oxley and FTC Consent
Order), security consulting, business continuity, disaster recovery, incident response,
and computer forensic investigations. Colby received an advanced degree in business
administration from the University of Southern California, maintains the EnCE, CISSP,
OPSA, and CISA certifications, and has taught advanced computer forensic and incident
response techniques at the Computer and Enterprise Investigations Conference (CEIC).
He is also a developer of the Open Source Security Testing Methodology Manual (OSSTMM)
and has been with ISECOM since 2003.
Raoul Chiesa
Raoul “Nobody” Chiesa has 22 years of experience in information security
and 11 years of professional knowledge. He is the founder and president of
@ Mediaservice.net Srl, an Italian-based, vendor-neutral security consulting
company. Raoul is on the board of directors for the OWASP Italian Chapter,
Telecom Security Task Force (TSTF.net), and the ISO International User Group.
Since 2007, he has been a consultant on cybercrime issues for the UN at the United
Nations Interregional Crime & Justice Research Institute (UNICRI).
He authored Hacker Profile, a book which will be published in the U.S. by Taylor &
Francis in late 2008. Raoul’s company was the first worldwide ISECOM partner, launching
the OPST and OPSA classes back in 2003. At ISECOM, he works as Director of
Communications, enhancing ISECOM evangelism all around the world.
Pablo Endres
Pablo Endres is a security engineer/consultant and technical solution architect
with a strong background built upon his experience at a broad spectrum of
companies: wireless phone providers, VoIP solution providers, contact centers,
universities, and consultancies. He started working with computers (an XT) in
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the late 1980s and holds a degree in computer engineering from the Universidad Simón
Bolívar at Caracas, Venezuela. Pablo has been working, researching, and playing around
with Linux, Unix, and networked systems for more than a decade.
Pablo would like to thank Pete for the opportunity to work on this book and with
ISECOM, and last but not least, his wife and parents for all the support and time
sharing.
Richard Feist
Richard has been working in the computer industry since 1989 when he started as
a programmer and has since moved through various roles. He has a good view of
both business and IT and is one of the few people who can interact in both spaces.
He recently started his own small IT security consultancy, Blue Secure. He
currently holds various certifications (CISSP, Prince2 Practitioner, OPST/OPSA
trainer, MCSE, and so on) in a constant attempt to stay up-to-date.
Andrea Ghirardini
Andrea “Pila” Ghirardini has over seven years expertise in computer forensics
analysis. The labs he leads (@PSS Labs, http://www.atpss.net) have assisted Italian
and Swiss Police Special Units in more than 300 different investigations related
to drug dealing, fraud, tax fraud, terrorism, weapons trafficking, murder,
kidnapping, phishing, and many others.
His labs are the oldest ones in Italy, continuously supported by the company team’s
strong background in building CF machines and storage systems in order to handle and
examine digital evidence, using both open-source-based and commercial tools. In 2007,
Andrea wrote the first book ever published in Italy on computer forensics investigations
and methodologies (Apogeo Editore). In this book, he also analyzed Italian laws related
to these kinds of crimes. Andrea holds the third CISSP certification in Italy.
Julian “HammerJammer” Ho
Julian “HammerJammer” Ho is co-founder of ThinkSECURE Pte, Ltd., (http://
securitystartshere.org), an Asia-based practical IT security certification/training
authority and professional IT security services organization and an ISECOM-
certified OPST trainer.
Julian was responsible for design, implementation, and maintenance of
security operations for StarHub’s Wireless Hotzones in Changi International
Airport Terminals 1 and 2 and Suntec Convention Centre. He is one half of the design
team for BlackOPS:HackAttack 2004, a security tournament held in Singapore; AIRRAID
(Asia’s first-ever pure wireless hacking tournament) in 2005; and AIRRAID2 (Thailand’s
first-ever public hacking tournament) in 2008. He also contributed toward research and
publication of the WCCD vulnerability in 2006.
Julian created and maintains the OSWA-Assistant wireless auditing toolkit, which
was awarded best in the Wireless Testing category and recommended/excellent in the
LiveCDs category by Security-Database.com in their “Best IT Security and Auditing
Software 2007” article.
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