Showing posts with label flaws. Show all posts
Showing posts with label flaws. Show all posts

Saturday, 13 July 2013

Nations Buying as Hackers Sell Computer Flaws

The hackers, Luigi Auriemma, 32, and Donato Ferrante, 28, sell technical details of such vulnerabilities to countries that want to break into the computer systems of foreign adversaries. The two will not reveal the clients of their company, ReVuln, but big buyers of services like theirs include the National Security Agency — which seeks the flaws for America’s growing arsenal of cyberweapons — and American adversaries like the Revolutionary Guards of Iran.

All over the world, from South Africa to South Korea, business is booming in what hackers call “zero days,” the coding flaws in software like Microsoft Windows that can give a buyer unfettered access to a computer and any business, agency or individual dependent on one.

Just a few years ago, hackers like Mr. Auriemma and Mr. Ferrante would have sold the knowledge of coding flaws to companies like Microsoft and Apple, which would fix them. Last month, Microsoft sharply increased the amount it was willing to pay for such flaws, raising its top offer to $150,000.

But increasingly the businesses are being outbid by countries with the goal of exploiting the flaws in pursuit of the kind of success, albeit temporary, that the United States and Israel achieved three summers ago when they attacked Iran’s nuclear enrichment program with a computer worm that became known as “Stuxnet.”

The flaws get their name from the fact that once discovered, “zero days” exist for the user of the computer system to fix them before hackers can take advantage of the vulnerability. A “zero-day exploit” occurs when hackers or governments strike by using the flaw before anyone else knows it exists, like a burglar who finds, after months of probing, that there is a previously undiscovered way to break into a house without sounding an alarm.

“Governments are starting to say, ‘In order to best protect my country, I need to find vulnerabilities in other countries,’ ” said Howard Schmidt, a former White House cybersecurity coordinator. “The problem is that we all fundamentally become less secure.”

A zero-day bug could be as simple as a hacker’s discovering an online account that asks for a password but does not actually require typing one to get in. Bypassing the system by hitting the “Enter” key becomes a zero-day exploit. The average attack persists for almost a year — 312 days — before it is detected, according to Symantec, the maker of antivirus software. Until then it can be exploited or “weaponized” by both criminals and governments to spy on, steal from or attack their target.

Ten years ago, hackers would hand knowledge of such flaws to Microsoft and Google free, in exchange for a T-shirt or perhaps for an honorable mention on a company’s Web site. Even today, so-called patriotic hackers in China regularly hand over the information to the government.

Now, the market for information about computer vulnerabilities has turned into a gold rush. Disclosures by Edward J. Snowden, the former N.S.A. consultant who leaked classified documents, made it clear that the United States is among the buyers of programming flaws. But it is hardly alone.

Israel, Britain, Russia, India and Brazil are some of the biggest spenders. North Korea is in the market, as are some Middle Eastern intelligence services. Countries in the Asian Pacific, including Malaysia and Singapore, are buying, too, according to the Center for Strategic and International Studies in Washington.

To connect sellers and buyers, dozens of well-connected brokers now market information on the flaws in exchange for a 15 percent cut. Some hackers get a deal collecting royalty fees for every month their flaw is not discovered, according to several people involved in the market.

Some individual brokers, like one in Bangkok who goes by “the Grugq” on Twitter, are well known. But after the Grugq spoke to Forbes last year, his business took a hit from the publicity, according to a person familiar with the impact, primarily because buyers demand confidentiality.

A broker’s approach need not be subtle. “Need code execution exploit urgent,” read the subject line of an e-mail sent from one contractor’s intermediary last year to Billy Rios, a former security engineer at Microsoft and Google who is now a director at Cylance, a security start-up.

“Dear Friend,” the e-mail began. “Do you have any code execution exploit for Windows 7, Mac, for applications like Browser, Office, Adobe, SWF any.”

“If yes,” the e-mail continued, “payment is not an issue.”

Thursday, 11 July 2013

July's Patch Tuesday fixes 6 critical Microsoft flaws

If you use the Windows operating system, or just about any of the core products offered by Microsoft, it's time to install some crucial updates. Today, Microsoft pushed out seven new security bulletins—along with their accompanying patches—as well as a new policy that affects both third-party apps and those developed by Microsoft itself.

Of the seven security bulletins, six of them are rated Critical, while the remaining one is ranked as Important. The Critical security bulletins affect Windows, Internet Explorer, Microsoft Office, Silverlight, and more. The Important security bulletin addresses a privilege elevation flaw in the Windows Defender security software, so that definitely shouldn’t be ignored.
Microsoft squashes a number of bugs
with seven new security bulletins.
Ross Barrett, senior manager of security engineering at Rapid7, stressed this isn't your typical Patch Tuesday announcement. “Basically everything in the core Microsoft world is affected by one or more of these; every supported OS, every version of MS Office, Lync, Silverlight, Visual Studio and .NET. It’s going to be a busy time for security teams everywhere.”

Tyler Reguly, technical manager of security research and development at Tripwire, said it can be difficult to prioritize patch deployment when almost all of them are Critical. “Luckily, there's safety in the known, so customers should patch Internet Explorer first, a common theme for Microsoft patch drops.”

That means start with MS13-055—the ever-popular cumulative patch update for the Internet Explorer web browser. Reguly feels that MS13-053 should be next in line for attention after MS13-055 because it fixes a vulnerability that is already being exploited in the wild.

Qualys CTO Wolfgang Kandek agrees that MS13-053 and MS13-055 are the top priorities, but in his mind the urgency is flip-flopped. In a blog post, Kandek believes that MS13-053 is the most crucial because it affects all versions of the Windows OS, and addresses vulnerabilities that are being actively exploited. Kandek warns, “The most likely attack vector is through end users browsing a malicious web page or opening an infected document, which results in Remote Code Execution that gives control of the affected machine to the attacker.”
Developers--including Microsoft--will have only 180 days to address critical vulnerabilities.
The other big news from Microsoft is the unveiling of a new policy that places a countdown clock on dealing with vulnerabilities. Craig Young, Tripwire security researcher, explained, “Under the new policy, any app in any of the four [Microsoft] app stores will be given 180 days to resolve reported code execution bugs. This policy applies to 3rd-party developers as well as Microsoft’s own applications and is a great addition to Microsoft’s existing policy of scanning and reviewing app submissions.”

This new policy from Microsoft is significant for businesses that rely on Microsoft platforms and devices. Six months is still a long time for a vulnerability to be in place—especially Critical or Important vulnerabilities that can potentially be exploited to execute malicious code remotely—but the policy shows Microsoft's continued commitment to security. The policy applies to all apps available through the Windows Store, Windows Phone Store, Office Store, or Azure Marketplace."

The policy does not, however, apply to vulnerabilities that are being actively exploited in the wild. Flaws that pose an imminent or ongoing threat are handled with greater urgency. According to a blog post from Microsoft, "In those cases, we’ll work with the developer to have an update available as soon as possible and may remove the app from the store earlier."

If you have Automatic Updates enabled, sit back and relax, but plan on your system rebooting at some point to finish applying all of the necessary patches. If you don’t use Automatic Updates, get cracking! You’ve got a lot of Critical patches to install.

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