Posts Tagged: opera


7
Dec 10

Rap Sheets on Top Software Vendors

A new online resource aims to make it easier to gauge the relative security risk of using different types of popular software, such as Web browsers and media players.

Last month, I railed against the perennial practice of merely counting vulnerabilities in a software product as a reliable measure of its security: Understanding the comparative danger of using different software titles, I argued, requires collecting much more information about each, such as how long known flaws existed without patches. Now, vulnerability management firm Secunia says its new software fact sheets try to address that information gap, going beyond mere vulnerability counts and addressing the dearth of standardized and scheduled reporting of important security parameters for top software titles.

Secunia "fact sheet" on Adobe Reader security flaws.

“In the finance industry, for example, key performance parameters are reported yearly or quarterly to consistently provide interested parties, and the public, with relevant information for decision-making and risk assessment,” the company said.

In addition to listing the number of vulnerabilities reported and fixed by different software vendors, the fact sheets show the impact of a successful attack on the flaw; whether the security hole was patched or unpatched on the day it was disclosed; and information about the window of exploit opportunity between disclosure and the date a patch was issued.

The fact sheets allow some useful comparisons — such as between Chrome, Firefox, Internet Explorer and Opera. But I’m concerned they will mainly serve to fan the flame wars over which browser is more secure. The reality, as shown by the focus of exploit kits like Eleonore, Crimepack and SEO Sploit Pack, is that computer crooks don’t care which browser you’re using: They rely on users browsing the Web with outdated software, especially browser plugins like Java, Adobe Flash and Reader (all links lead to PDF files).


23
Jun 10

Security Updates for Firefox, Opera Browsers

Mozilla has shipped a new version of Firefox that corrects a number of vulnerabilities in the browser. Separately, a new version of Opera is available that fixes at least five security flaws in the software.

Firefox version 3.6.4 addresses seven security holes ranging from lesser bugs to critical flaws. Mozilla says this latest version of Firefox also does a better job of handling plugin crashes, so that if a plugin causes problems when the user browses a site, Firefox will simply let the plugin crash instead of tying up the entire browser process. Firefox should auto-update (usually on your next restart of the browser), but you can force an update check by clicking “Help,” and then “Check for Updates” (when I did this, I noticed that in its place was the “Apply Downloaded Update Now,” option, indicating that Firefox had already fetched this upgrade.

Mozilla also shipped, 3.5.10, an update that fixes at least nine security vulnerabilities in its 3.5.x line of Firefox. The software maker will only continue to support this version of Firefox for another couple of months, so if you’re on the 3.5.x line, you might consider upgrading soon (don’t know which version you’re using, click “Help” and “About Mozilla Firefox”).

Opera’s update brings the browser to version 10.54, which corrects a few critical vulnerabilities. Opera now includes an auto-update feature, so Opera users may already have been notified about this update (I wasn’t). In any case, Opera is urging users to upgrade to the latest version, available here.


24
May 10

Revisiting the Eleonore Exploit Kit

Not long after I launched this blog, I wrote about the damage wrought by the Eleonore Exploit Kit, an increasingly prevalent commercial hacking tool that makes it easy for criminals to booby-trap Web sites with malicious software. That post generated tremendous public interest because it offered a peek at the statistics page that normally only the criminals operating these kits get to see. I’m revisiting this topic again because I managed to have a look at another live Eleonore exploit pack panel, and the data seem to reinforce a previous observation: Today’s attackers care less about the browser you use and more about whether your third-party browser add-ons and plugins are out-of-date and exploitable.

Hacked and malicious sites retrofitted with kits like Eleonore have become more common of late: In a report issued this week, Web security firm Zscaler found that roughly 5 percent of the browser exploits they identified during the first quarter of this year were tied to hacked or malicious sites that criminals had outfitted with some version of Eleonore.

Like most exploit kits, Eleonore is designed to invisibly probe the visitor’s browser for known security vulnerabilities, and then use the first one found as a vehicle to silently install malicious software. The hacker’s end of the kit is a Web-based interface that features detailed stats on the percentage of visitors to the booby-trapped site(s) that are successfully attacked, and which software vulnerabilities were most successful in leading to the installation of the hacker’s malware.

This particular Eleonore kit — which is currently stitched into several live adult Web sites — comes with at least a half-dozen browser exploits, including three that target Internet Explorer flaws, two that attack Java bugs, and one that targets a range of Adobe PDF Reader vulnerabilities. According to this kit’s stats page, the malicious adult sites manage to infect roughly every one in ten visitors.

As we can see from the landing page pictured above, Windows XP users represent by far the largest group of users hitting these poisoned porn sites.

Once again, Eleonore shows just how heavily Java flaws are now being used to infect computers (the above graphic shows the number of successful malware installations or “loads” per exploit). The last time I reviewed a working Eleonore admin panel, we saw that Java flaws were the second most reliable exploits. This time around, Java was the biggest source infections. In the Eleonore kit I wrote about earlier this year, some 34 percent of the systems that were successfully exploited were attacked via a Java flaw. In this installation, four out of every ten victims who were hacked were compromised because of they were running an outdated version of Java.

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5
May 10

Opera Plugs ‘Extremely Severe’ Security Hole

The makers of the Opera Web browser are urging users to apply an update that fixes what the company described as an “extremely severe” security flaw in Windows and Mac versions of the software. The vulnerability is fixed in the latest version, v. 10.53, available from this link. Alternatively, Opera users can click “Help” then “Check for Updates” from within the browser.


15
Jan 10

Exploit in the Wild for New Internet Explorer Flaw

Less than 24 hours after Microsoft acknowledged the existence of an unpatched, critical flaw in all versions of its Internet Explorer Web browser, computer code that can be used to exploit the flaw has been posted online.

This was bound to happen, as dozens of researchers were poring over malicious code samples that exploited the flaw, which has generated more interest and buzz than perhaps any other vulnerability in recent memory. The reason? Anti-virus makers and security experts say this was the same flaw and exploit that was used in a series of sophisticated, targeted attacks against Google, Adobe and a slew of other major corporations, in what is being called a massive campaign by Chinese hacking groups to hoover up source code and other proprietary information from these companies.

Microsoft said it will continue monitoring this situation and take appropriate action to protect its customers, including releasing an out-of-band patch to address the threat. Typically, Microsoft issues patches on the second Tuesday of the month (a.k.a. “Patch Tuesday), but due to the seriousness of this threat and the sheer number of companies that have apparently already been hacked because of it, Microsoft is likely to push out an update before the end of the month. In fact, I would not be surprised to see a fix for this within the next 7 to 10 days.

In the meantime, Redmond is urging IE users to upgrade to the latest version, IE8, which the company touts as its most secure version of the browser. Still, even IE is still vulnerable, and this is a browse-to-a-nasty-site-and-get-owned kind of vulnerability. As such, Internet users will be far more secure surfing the Web with an alternative browser (at least until Microsoft fixes this problem), such as Google Chrome, Mozilla Firefox, Opera, or Apple‘s Safari for Windows.