Affichage des articles dont le libellé est security. Afficher tous les articles
Affichage des articles dont le libellé est security. Afficher tous les articles

lundi 24 novembre 2014

How to Become an Ethical Hacker

Do viruses, DDoS attacks, or buffer overflows tickle your fancy? If so, you might consider becoming a legal hacker, aka an ethical hacker, "white hat" hacker, or penetration tester.
Businesses and government-related organizations that are serious about their network security hire ethical hackers and penetration testers to help probe and improve their networks, applications, and other computer systems with the ultimate goal of preventing data theft and fraud. You may not get the same adrenaline rush that you might with underground hacking, but you can earn a good and honest living--and not end up facing prison time, as some illegal "black hat" hackers do.
How does the job market look like for ethical hackers? Extremely good! The IT market overall continues to grow despite the current economic turmoil. Research firm Gartner estimates that worldwide enterprise IT spending grew by 5.9 percent between 2009 and 2010, to a total of $2.7 trillion. At the same time, security is becoming a more pressing concern. Gartner expects to see an increase of nearly 40 percent in spending on worldwide security services during the five-year period from 2011 to 2015, eventually surpassing $49.1 billion.
In your first years as an ethical hacker, you'll be in a position to earn anywhere from $50,000 to $100,000 per year, depending on the company that hires you, and on your IT experience and education. With several years of professional experience, you could command $120,000 or more per year, especially if you do your own independent consulting.
You can't just dive into an ethical hacker position, however. Without IT security experience, you won't get very far, even with degrees and certifications. As is true for other IT jobs, employers typically want candidates who have college degrees, but related experience is king. And experience with certifications can typically take the place of some degree requirements.

Getting Started

What you need to do to get started on the road to becoming an ethical hacker depends on where you are in the IT field. If you haven't started your IT career yet, you might even consider military service. The military offers many IT opportunities, and you get paid to go to school, even if you enlist in a part-time branch such as the National Guard or Reserves. Military service also looks good to employers that require security clearances.
Start with the basics: Earn your A+ Certification and get a tech support position. After some experience and additional certification (Network+ or CCNA), move up to a network support or admin role, and then to network engineer after a few years. Next, put some time into earning security certifications (Security+, CISSP, or TICSA) and find an information security position. While you're there, try to concentrate on penetration testing--and get some experience with the tools of the trade. Then work toward the Certified Ethical Hacker (CEH) certification offered by the International Council of Electronic Commerce Consultants (EC-Council for short). At that point, you can start marketing yourself as an ethical hacker.
For a hacker, networking know-how is vital; but make sure that you gain experience in related areas as well. Discover and play with Unix/Linux commands and distributions. Make sure you also learn some programming--maybe C, LISP, Perl, or Java. And spend some time with databases such as SQL.

Soft Skills

Hacking isn't all technical. It also requires so-called soft skills, just as any other IT job does. You'll need a strong work ethic, very good problem-solving and communications skills, and the ability to say motivated and dedicated.
Ethical hackers also need street smarts, people skills, and even some talent for manipulation, since at times they need to be able to persuade others to disclose credentials, restart or shut down systems, execute files, or otherwise knowingly or unknowingly help them achieve their ultimate goal. You'll need to master this aspect of the job, which people in the business sometimes call "social engineering," to become a well-rounded ethical hacker.

Stay Legal!

It's important never to engage in "black hat" hacking--that is, intruding or attacking anyone's network without their full permission. Engaging in illegal activities, even if it doesn't lead to a conviction, will likely kill your ethical hacking career. Many of the available jobs are with government-related organizations and require security clearances and polygraph testing. Even regular companies will perform at least a basic background check.

Becoming a Certified Ethical Hacker (CEH)

As noted earlier, becoming a Certified Ethical Hacker (CEH) involves earning the appropriate credential from the EC-Council after a few years of security-related IT experience. The certification will help you understand security from the mindset of a hacker. You'll learn the common types of exploits, vulnerabilities, and countermeasures.
Qualification for a CEH (a vendor-neutral certification) involves mastering penetration testing, footprinting and reconnaissance, and social engineering. The course of study covers creating Trojan horses, backdoors, viruses, and worms. It also covers denial of service (DoS) attacks, SQL injection, buffer overflow, session hijacking, and system hacking. You'll discover how to hijack Web servers and Web applications. You'll also find out how to scan and sniff networks, crack wireless encryption, and evade IDSs, firewalls, and honeypots.
Through approved EC-Council training partners, you can take a live, five-day onsite or online training course to prepare for the CEH cert. You can generally take live online classes over five consecutive days; onsite courses typically offer the content spread over a couple weeks for locals. In addition, you can take self-paced courses and work with self-study materials (including the CEH Certified Ethical Hacker Study Guide book) with or without the training courses. The EC-Council also offers iLabs, a subscription based-service that allows you to log on to virtualized remote machines to perform exercises.
The EC-Council usually requires that you have at least two years of information-security-related work experience (endorsed by your employer) in addition to passing the exam before it will award you the official CEH certification.

Resources

If you're interested in ethical hacking, you can consult many useful resources for more information. To start, check the resources section of the EC-Council site. A quick Amazon search will reveal many books on ethical hacking and the CEH certification, as well.
With some googling, you can find simple hacking how-tos, which may motivate you even more. Consider downloading the Firefox add-on Firesheep or the Android app Droidsheep, and hijack your online accounts via Wi-Fi (but don't use these tools to hijack others' accounts--you could find yourself in legal trouble if you do).
Another option is to experiment with the BackTrack live CD. Try enabling WEP security on your wireless router at home, and then take a stab at cracking it. Check out Hack This Site to test and expand your skills. You could even set up a Linux box with Apache or buy a used Cisco router and see what you can do with it. If you want to play with malware, consider downloading--cautiously, and at your own risk--a malware DIY kit or a keylogger, and use it to experiment on a separate old PC or virtual machine.
Like other IT areas, hacking has conventions and conferences dedicated to it, such as DefCon, one of the oldest and largest of these. Such gatherings can be a great place to meet and network with peers and employers, and to discover more about hacking. DefCon also has affiliated local groups in select areas.
And remember, never attack or intrude on anyone else's network or computers without full written permission.
Eric Geier is the founder of NoWiresSecurity, which helps businesses easily protect their Wi-Fi networks with the Enterprise mode of WPA/WPA2 security by offering a hosted RADIUS/802.1X service. He is also a freelance tech writer—become a Twitter follower or use the RSS Feed to keep up with his writings.

Best Information Security Certifications for 2015

Serious minded InfoSec professionals should consider adding one or more of these top five information security certifications to their to-do lists if they want to set themselves apart and pitch themselves as leaders, movers, or shakers in the security field. Here is our updated list of the best security certs for 2015.

 


When it comes to information security (aka InfoSec), you need only read the headlines to observe that those with malintent constantly find new and scary ways to access -- and misuse -- privileged information for unscrupulous or questionable purposes. As a result, IT professionals skilled in information security remain in very high demand.
When evaluating prospective candidates, employers frequently look to certification as a measure of excellence and commitment to quality. In this article, we take a look at five InfoSec certifications we consider to be leaders in the field of information security. This year's list includes entry level credentials, like the CompTIA Security+ and GIAC Security Essentials, as well as more advanced certs, like the Certified Ethical Hacker (CEH), Certified Information Systems Security Professional (CISSP) and Certified Information Security Manager (CISM). We also offer some additional certification options on the last page, as the field of information security is wide and varied.
If you're serious about advancing your career in the IT field and are interested in specializing in security, then certification is your best bet. It's an effective way to validate your skills and show your current or prospective employer that you're qualified and properly trained.

dimanche 9 mars 2014

Mexico to Texas on convicted cop killer: Don't execute our citizen


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Mexico's government is trying to block the execution of a convicted cop killer in Texas this week, arguing that it would violate international law.
The case of Mexican citizen Edgar Tamayo Arias is the latest battle in a dispute over the rights of the foreign-born on American death rows. And U.S. Secretary of State John Kerry has said it could put Americans abroad at risk.


Tamayo, 46, was convicted in the 1994 murder of a Houston police officer, whom he shot three times in the back of the head, according to the Texas Department of Criminal Justice.
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Mexico's Foreign Ministry said Sunday that going ahead with Arias' execution by lethal injection, scheduled for Wednesday, would violate international law because Tamayo wasn't advised of his right to receive consular assistance.

This isn't the first time Mexico has stepped in to try to stop the execution of one of its citizens.

Mexican officials made similar arguments -- unsuccessfully -- before executions in 2008 and 2011.

"The Mexican government is opposed to the death penalty and has decided to use the necessary resources to protect its citizens who are in danger of receiving this sentence," the ministry said in a statement.

Kerry has also weighed in on Tamayo's case, arguing that setting an execution date is "extremely detrimental to the interests of the United States."

"I want to be clear: I have no reason to doubt the facts of Mr. Tamayo's conviction, and as a former prosecutor, I have no sympathy for anyone who would murder a police officer," Kerry wrote. "This is a process issue I am raising because it could impact the way American citizens are treated in other countries."

In a response to Kerry, Texas Deputy Attorney General Don Clemmer said he'd meet with representatives from the Justice Department and the State Department over the matter.

The International Court of Justice ruled in 2004 that the United States had violated the Vienna Convention on Consular Relations, the treaty that lays out rights of people detained in other nations, in the cases of dozens of Mexican nationals. The judges ordered the United States to provide "review and reconsideration" of the sentences and convictions of those Mexican prisoners as a result.

Mexico's Foreign Ministry argues that hasn't happened in Tamayo's case.

It's a case Tamayo's lawyer had made as well in attempts to stay his execution.

"Mr. Tamayo was never informed of his treaty rights at the time of his arrest, and no court has agreed to review that treaty violation and the consequences that it had for his conviction and sentence," attorney Sandra Babcock told CNN affiliate KTRK.

Prosecutors have disputed that argument.

"Since 1994, this case has gone to all the courts that it can possibly go to -- the state courts, the federal courts," Roe Wilson, assistant district attorney in Harris County, Texas, told KTRK. "It has been reviewed."

Revealed: how US and UK spy agencies defeat internet privacy and security

US and British intelligence agencies have successfully cracked much of the online encryption relied upon by hundreds of millions of people to protect the privacy of their personal data, online transactions and emails, according to top-secret documents revealed by former contractor Edward Snowden.

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The files show that the National Security Agency and its UK counterpart GCHQ have broadly compromised the guarantees thatinternet companies have given consumers to reassure them that their communications, online banking and medical records would be indecipherable to criminals or governments.


The agencies, the documents reveal, have adopted a battery of methods in their systematic and ongoing assault on what they see as one of the biggest threats to their ability to access huge swathes of internet traffic – "the use of ubiquitous encryption across the internet".

Those methods include covert measures to ensure NSA control over setting of international encryption standards, the use of supercomputers to break encryption with "brute force", and – the most closely guarded secret of all – collaboration with technology companies and internet service providers themselves.

Through these covert partnerships, the agencies have inserted secret vulnerabilities – known as backdoors or trapdoors – into commercial encryption software.

The files, from both the NSA and GCHQ, were obtained by the Guardian, and the details are being published today in partnership with the New York Times and ProPublica. They reveal:

• A 10-year NSA program against encryption technologies made a breakthrough in 2010 which made "vast amounts" of data collected through internet cable taps newly "exploitable".

• The NSA spends $250m a year on a program which, among other goals, works with technology companies to "covertly influence" their product designs.

• The secrecy of their capabilities against encryption is closely guarded, with analysts warned: "Do not ask about or speculate on sources or methods."

• The NSA describes strong decryption programs as the "price of admission for the US to maintain unrestricted access to and use of cyberspace".

• A GCHQ team has been working to develop ways into encrypted traffic on the "big four" service providers, named as Hotmail, Google, Yahoo and Facebook.

The agencies insist that the ability to defeat encryption is vital to their core missions of counter-terrorism and foreign intelligence gathering.

But security experts accused them of attacking the internet itself and the privacy of all users. "Cryptography forms the basis for trust online," said Bruce Schneier, an encryption specialist and fellow at Harvard's Berkman Center for Internet and Society. "By deliberately undermining online security in a short-sighted effort to eavesdrop, the NSA is undermining the very fabric of the internet." Classified briefings between the agencies celebrate their success at "defeating network security and privacy".

"For the past decade, NSA has lead [sic] an aggressive, multi-pronged effort to break widely used internet encryption technologies," stated a 2010 GCHQ document. "Vast amounts of encrypted internet data which have up till now been discarded are now exploitable."

An internal agency memo noted that among British analysts shown a presentation on the NSA's progress: "Those not already briefed were gobsmacked!"

The breakthrough, which was not described in detail in the documents, meant the intelligence agencies were able to monitor "large amounts" of data flowing through the world's fibre-optic cables and break its encryption, despite assurances from internet company executives that this data was beyond the reach of government.

The key component of the NSA's battle against encryption, its collaboration with technology companies, is detailed in the US intelligence community's top-secret 2013 budget request under the heading "Sigint [signals intelligence] enabling".

Funding for the program – $254.9m for this year – dwarfs that of thePrism program, which operates at a cost of $20m a year, according to previous NSA documents. Since 2011, the total spending on Sigintenabling has topped $800m. The program "actively engages US and foreign IT industries to covertly influence and/or overtly leverage their commercial products' designs", the document states. None of the companies involved in such partnerships are named; these details are guarded by still higher levels of classification.

Among other things, the program is designed to "insert vulnerabilities into commercial encryption systems". These would be known to the NSA, but to no one else, including ordinary customers, who are tellingly referred to in the document as "adversaries".

"These design changes make the systems in question exploitable through Sigint collection … with foreknowledge of the modification. To the consumer and other adversaries, however, the systems' security remains intact."

The document sets out in clear terms the program's broad aims, including making commercial encryption software "more tractable" to NSAattacks by "shaping" the worldwide marketplace and continuing efforts to break into the encryption used by the next generation of 4G phones.

Among the specific accomplishments for 2013, the NSA expects the program to obtain access to "data flowing through a hub for a major communications provider" and to a "major internet peer-to-peer voice and text communications system".
Technology companies maintain that they work with the intelligence agencies only when legally compelled to do so. The Guardian has previously reported that Microsoft co-operated with the NSA to circumvent encryption on the Outlook.com email and chat services. The company insisted that it was obliged to comply with "existing or future lawful demands" when designing its products.

The documents show that the agency has already achieved another of the goals laid out in the budget request: to influence the international standards upon which encryption systems rely.

Independent security experts have long suspected that the NSA has been introducing weaknesses into security standards, a fact confirmed for the first time by another secret document. It shows the agency worked covertly to get its own version of a draft security standard issued by the US National Institute of Standards and Technology approved for worldwide use in 2006.
"Eventually, NSA became the sole editor," the document states.

The NSA's codeword for its decryption program, Bullrun, is taken from a major battle of the American civil war. Its British counterpart, Edgehill, is named after the first major engagement of the English civil war, more than 200 years earlier.

A classification guide for NSA employees and contractors on Bullrunoutlines in broad terms its goals.

"Project Bullrun deals with NSA's abilities to defeat the encryption used in specific network communication technologies. Bullrun involves multiple sources, all of which are extremely sensitive." The document reveals that the agency has capabilities against widely used online protocols, such as HTTPS, voice-over-IP and Secure Sockets Layer (SSL), used to protect online shopping and banking.

The document also shows that the NSA's Commercial Solutions Center, ostensibly the body through which technology companies can have their security products assessed and presented to prospective government buyers, has another, more clandestine role.
It is used by the NSA to "to leverage sensitive, co-operative relationships with specific industry partners" to insert vulnerabilities into security products. Operatives were warned that this information must be kept top secret "at a minimum".

A more general NSA classification guide reveals more detail on the agency's deep partnerships with industry, and its ability to modify products. It cautions analysts that two facts must remain top secret: that NSA makes modifications to commercial encryption software and devices "to make them exploitable", and that NSA "obtains cryptographic details of commercial cryptographic information security systems through industry relationships".

The agencies have not yet cracked all encryption technologies, however, the documents suggest. Snowden appeared to confirm this during a live Q&A with Guardian readers in June. "Encryption works. Properly implemented strong crypto systems are one of the few things that you can rely on," he said before warning that NSA can frequently find ways around it as a result of weak security on the computers at either end of the communication.
The documents are scattered with warnings over the importance of maintaining absolute secrecy around decryption capabilities.

Strict guidelines were laid down at the GCHQ complex in Cheltenham, Gloucestershire, on how to discuss projects relating to decryption. Analysts were instructed: "Do not ask about or speculate on sources or methods underpinning Bullrun." This informaton was so closely guarded, according to one document, that even those with access to aspects of the program were warned: "There will be no 'need to know'."

The agencies were supposed to be "selective in which contractors are given exposure to this information", but it was ultimately seen by Snowden, one of 850,000 people in the US with top-secret clearance.A 2009 GCHQ document spells out the significant potential consequences of any leaks, including "damage to industry relationships".

"Loss of confidence in our ability to adhere to confidentiality agreements would lead to loss of access to proprietary information that can save time when developing new capability," intelligence workers were told. Somewhat less important to GCHQ was the public's trust which was marked as a moderate risk, the document stated.
"Some exploitable products are used by the general public; some exploitable weaknesses are well known eg possibility of recovering poorly chosen passwords," it said. "Knowledge that GCHQ exploits these products and the scale of our capability would raise public awareness generating unwelcome publicity for us and our political masters."

The decryption effort is particularly important to GCHQ. Its strategic advantage from its Tempora program – direct taps on transatlantic fibre-optic cables of major telecommunications corporations – was in danger of eroding as more and more big internet companies encrypted their traffic, responding to customer demands for guaranteed privacy.

Without attention, the 2010 GCHQ document warned, the UK's "Sigintutility will degrade as information flows changes, new applications are developed (and deployed) at pace and widespread encryption becomes more commonplace." Documents show that Edgehill's initial aim was to decode the encrypted traffic certified by three major (unnamed) internet companies and 30 types of Virtual Private Network (VPN) – used by businesses to provide secure remote access to their systems. By 2015, GCHQ hoped to have cracked the codes used by 15 major internet companies, and 300 VPNs.

Another program, codenamed Cheesy Name, was aimed at singling out encryption keys, known as 'certificates', that might be vulnerable to being cracked by GCHQ supercomputers.
Analysts on the Edgehill project were working on ways into the networks of major webmail providers as part of the decryption project. A quarterly update from 2012 notes the project's team "continue to work on understanding" the big four communication providers, named in the document as Hotmail, Google, Yahoo and Facebook, adding "work has predominantly been focused this quarter on Google due to new access opportunities being developed".

To help secure an insider advantage, GCHQ also established a HumintOperations Team (HOT). Humint, short for "human intelligence" refers to information gleaned directly from sources or undercover agents.

This GCHQ team was, according to an internal document, "responsible for identifying, recruiting and running covert agents in the global telecommunications industry."

"This enables GCHQ to tackle some of its most challenging targets," the report said. The efforts made by the NSA and GCHQ against encryption technologies may have negative consequences for all internet users, experts warn.

"Backdoors are fundamentally in conflict with good security," said Christopher Soghoian, principal technologist and senior policy analyst at the American Civil Liberties Union. "Backdoors expose all users of a backdoored system, not just intelligence agency targets, to heightened risk of data compromise." This is because the insertion of backdoors in a software product, particularly those that can be used to obtain unencrypted user communications or data, significantly increases the difficulty of designing a secure product."

This was a view echoed in a recent paper by Stephanie Pell, a former prosecutor at the US Department of Justice and non-resident fellow at the Center for Internet and Security at Stanford Law School.

"[An] encrypted communications system with a lawful interception back door is far more likely to result in the catastrophic loss of communications confidentiality than a system that never has access to the unencrypted communications of its users," she states.

Intelligence officials asked the Guardian, New York Times and ProPublica not to publish this article, saying that it might prompt foreign targets to switch to new forms of encryption or communications that would be harder to collect or read.

The three organisations removed some specific facts but decided to publish the story because of the value of a public debate about government actions that weaken the most powerful tools for protecting the privacy of internet users in the US and worldwide.

Source : The Guardian