New Metaspoit 0-Day IE7, IE8, IE9, WinXP, Vista, Windows 7

New Metasploit 0-day exploit for IE 7, 8 & 9 on Windows XP, Vista, and 7 – SecurityStreet/Rapid7

We have some Metasploit freshness for you today: A new zero-day exploit for Internet Explorer 7, 8, and 9 on Windows XP, Vista and 7. Computers can get compromised simply by visiting a malicious website, which gives the attacker the same privileges as the current user. Since Microsoft has not released a patch for this vulnerability yet, Internet users are strongly advised to switch to other browsers, such as Chrome or Firefox, until a security update becomes available. The exploit had already been used by malicious attackers in the wild before it was published in Metasploit. The associated vulnerability puts about 41% of Internet users in North America and 32% world-wide at risk (source: StatCounter). We have added the zero-day exploit module to Metasploit to give the security community a way to test if their systems are vulnerable and to develop counter-measures.

Here’s the back story: Some of you may remember that a couple of weeks ago, the Metasploit exploit team released a blog regarding a new Java exploit (CVE-2012-4681), with a blog entry titled “Let’s Start the Week with a New Java 0day in Metasploit“. You’d think the 0-day attack from the same malicious group might cool down a little after that incident… well, you’d be wrong. …

BOLD and COLOR emphasis mine.

I am sure that they only tested IE7, IE8 and IE9 initially on this because those are the only IE browsers in use right now for Windows XP, Vista and Windows 7 and based on the w3Counter, the largest number of IE users at this time.

He also said that if he were to test IE10, he was certain it would fail the test as well.

One can only imagine how miserably IE6, as the highest level of IE that works on Win2K, would do. You would think that most people have moved onto newer versions of Windows, but some have not sadly despite the fact that Win2K hasn’t had an update since I think July 2010 and despite articles like this one from Ed Bott January 16, 2010. Don’t think it’s a big issue? Well according to the IE6Countdown website, IE6 still has an impressive 6% of Internet users worldwide as of August 2012.

Sure the USA’s piece of pie for IE6 is only 0.04% but I know a few of those folks and they are diehard users who refuse to leave a dead OS and browser due to economic issues, or sight issues, or both. Now, to their credit, some of these Win2K users do have a NAT hardware router, a software firewall, and they use Firefox and not IE6, but still, Win2K has not had any updates since July 2010! Not a wise move.

Personally,  I have NO addons allowed to work in IE8 in Windows XP by default on the Installations of Windows XP SP3 that I have still running, or IE9 on Windows 7.

I lock down my other browsers with no scripting type extensions like NoScript on Firefox, Chrome, etc. regardless of the operating system I am using (Windows, Mac, Linux), as well as Adblock Plus.

Another great little program for Windows that can help you keep a handle on what is happening on your Windows computer is BillP Studio’s WinPatrol Plus and FREE WinPatrol. I use it on my WinXP SP3 as an added protection since I have a laptop that can only run WinXP (SP3 of course), I use very intermittently for special use tasks such as setting up routers, or downloading music using Amazon Downloader, or sites that use OverDrive Media Console, etc. which won’t run on Linux on my laptop. This is when I am on the road using Library or Starbucks, or other public wifi hotspots due to our bandwidth limitations here at home on Verizon Wireless.

And I have found it to be wise to use a different browser (locked down of course as much as you can tolerate), rather than the ‘ubiquitous’ browser (IE in Windows, Safari on the Mac, or whatever the default browser is in a given GUI in Linux) in any given operating system.

One can not leave this to chance these days, IMHO.

 

EDIT: Added articles – one more about the exploit and the link to information on Microsoft’s workaround:

Update: Hackers exploit new IE zero-day vulnerability – Computerworld

Customers can use the Enhanced Mitigation Experience Toolkit (EMET) 3.0 to harden IE enough to ward off the current attacks, said Wee, of the company’s Trustworthy Computing Group, in an email late on Monday.EMET 3.0 can be downloaded from Microsoft’s websites.

Microsoft issues workaround for IE 0-day exploited in current attacks – net-security.org

Microsoft has reacted fast by issuing a security advisory yesterday, in which it confirms the existence of the flaw in Internet explorer 9 and all previous versions (IE10 is not affected), and offers instructions on steps the users can take to mitigate – but not yet remove – the threat:

  • Deploy the Enhanced Mitigation Experience Toolkit (EMET) and configure it for Internet Explorer
  • Set Internet and Local intranet security zone settings to “High” to block ActiveX Controls and Active Scripting in these zones
  • Configure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone.

These steps could bring additional problems to the users, such as being bombarded by a slew of security warnings, so until Microsoft releases a definitive patch for the hole, maybe it would be easier for IE users to take Rapid7’s advice and switch to another browser for the time being.

Again BOLD emphasis mine.

Advertisements

Java flaws already included in Blackhole exploit kit within 12 hours

Java flaws already included in Blackhole exploit kit, Oracle was informed of vulnerabilities in April – Sophos Naked Security

It took less than 12 hours from the time the proof of concept for the latest Java zero-day vulnerabilities went public for exploits of those vulnerabilities to be included in a commercial crimeware kit.

Brian Krebs was first to mention having heard that CVE 2012-4681 was being added to the Blackhole exploit kit, and SophosLabs confirmed seeing it in the wild a few hours later.

And this about Macs in particular:

Some have asked if Mac users are at risk from the CVE 2012-4681 exploit and the answer is “Maybe.” The version officially distributed by Apple is Java 6, which is not vulnerable.

Interesting that an older version is not vulnerable to this particular zero day exploit. But if users of Lion and Mountain Lion have installed Java 7 directly from  Oracle’s Java.com site (which is the only way to even get Java on Lion and Mountain Lion), then they are vulnerable.

And of course, Windows and Linux/UNIX/BSD are all vulnerable as well if Java 7 has been installed.

Soon Twitter users were tweeting that Mac users were being attacked, but that the malware apparently on the blackhole server is serving Windows malware. Gives Mac users a reprieve to get their Java updated … if they installed it at all.

What is really sad is that Oracle was made aware of this vulnerability back in April and didn’t fix it in a timely manner.

Thankfully Firefox and Google Chrome will disable or at least not automatically run Java if it’s outdated. Other browsers (Internet Explorer, Opera, etc.) should be doing the same thing.

Chrome trumps IE as world’s top browser

Chrome trumps IE as world’s top browser – Computerworld

StatCounter says Google’s browser edged Microsoft’s for the week’s No. 1 spot; Chrome on pace to take May, too

Google Chrome eclipsed Microsoft's Internet Explorer for the first time last week, according to an Irish metrics company. (Data: StatCounter.)

Google Chrome eclipsed Microsoft’s Internet Explorer for the first time last week, according to an Irish metrics company. (Data: StatCounter.)

This is quite understandable since Google Chrome has most of the same great extensions as Mozilla Firefox, as well as tab separation/sandboxing, active updating happens behind the scenes, and it has built-in Flash plugin so users don’t have to worry about keeping Flash updated separately since Google Chrome takes care of that.

And for those who use more than one OS, it is also cross platform.

I use Google Chrome in Linux, and as a alternative browser in both Mac and Windows, although my main browser in Mac and Linux is still Firefox for the most part.

Still, I am impressed by the money being paid out for Bounties for vulnerabilities in the Google Chrome browser. I really like that they are so pro-active about getting vulnerabilities corrected.

Google Chrome certainly makes life easier!

Adobe Flash Zero Day Bug Emergency Patch

Adobe patches new Flash zero-day bug with emergency update – Computerworld

Adobe today warned that hackers are exploiting a critical vulnerability in its popular Flash Player program, and issued an emergency update to patch the bug.

“There are reports that the vulnerability is being exploited in the wild in active targeted attacks designed to trick the user into clicking on a malicious file delivered in an email message,” the Friday advisory said.

All editions of the Flash player are affected, but those abusing this vulnerability are targeting Internet Explorer with this current exploit and Adobe is giving it their Priority 1 status:

The update was pegged with Adobe’s priority rating of “1,” used to label patches for actively-exploited vulnerabilities or bugs that will likely be exploited. For such updates, Adobe recommends that customers install the new version within 72 hours.

In this case of course it’s already actively being exploited. So don’t wait! Don’t be a target, get your Adobe Flash Player update today!

Religious websites riskier than porn for online viruses: study

Religious websites riskier than porn for online viruses: study – Raw Story

Web wanderers are more likely to get a computer virus by visiting a religious website than by peering at porn, according to a study released on Tuesday.

“Drive-by attacks” in which hackers booby-trap legitimate websites with malicious code continue to be a bane, the US-based anti-virus vendor Symantec said in its Internet Security Threat Report.

The same article, or variations on the theme have been have been run by many news/technology venues such as InformationWeek, NYDailyNews, WallStreetJournal Blogs, CSO Online, PCWorld, etc. Many created their own stories from the report, so well worth a read.

Where did all this information come from:
Symantec Internet Security Threat Report – 2011
Symantec Logo - Confidence in a Connected World - Click to view Malicious Code Threat Report 2011

Malware in 2011
By analyzing malicious code we can determine which threats types and attack vectors are being employed. The endpoint is often the last line of defense, but it can often be the first-line of defense against attacks that spread using USB storage devices, insecure network connections and compromised, infected websites. Symantec’s cloud-based technology and reputation systems can also help to identify and block new and emerging attacks that haven’t been seen before, such as new targeted attacks employing previously unknown zero-day exploits. Analysis of malware activity trends both in the cloud and at the endpoint can help to shed light on the wider nature of threats confronting businesses, especially from blended attacks and threats facing mobile workers.

Corresponding to their large internet populations, the United States, China and India remained the top sources for overall malicious activity. …

The reference about religious sites?

Moreover, religious and ideological sites were found to have triple the average number of threats per infected site than adult/pornographic sites. We hypothesize that this is because pornographic website owners already make money from the internet and, as a result, have a vested interest in keeping their sites malware-free – it’s not good for repeat business.

And here’s just one more small area of the report:

Exploiting the Web: Attack toolkits, rootkits and social networking threats

Attack toolkits, which allow criminals to create new malware and assemble an entire attack without having to write the software from scratch, account for nearly two-thirds (61%) of all threat activity on malicious websites. As these kits become more widespread, robust and easier to use, this number is expected to climb. New exploits are quickly incorporated into attack kits. Each new toolkit version released during the year is accompanied with increased malicious Web attack activity. As a new version emerges that incorporates new exploit functionality, we see an increased use of it in the wild, making as much use of the new exploits until potential victims have patched their systems. For example, the number of attacks using the Blackhole toolkit, which was very active in 2010, dropped to a few hundred attacks per day in the middle of 2011, but re-emerged with newer versions generating hundreds of thousands of infection attempts per day towards the end of the year.
On average, attack toolkits contain around 10 different exploits, mostly focusing on browser independent plug-in vulnerabilities like Adobe Flash Player, Adobe Reader and Java. Popular kits can be updated every few days and each update may trigger a wave of new attacks.
They are relatively easy to find and sold on the underground black market and web forums. Prices range from $40 to $4,000. …

The whole report is well worth a read! There is only so much you can put into an article.

Much more in the report!

Oracle Java SE Update – Critical Update

Oracle Java SE Update – Security Garden

Oracle Java released an update to Java SE 6 and Java SE 7.

Edited to clarify:  Included in the Oracle updates are eighty-eight (88) new critical security fixes across numerous Oracle products, listed in the Oracle Critical Patch Update Advisory.  It is strongly advised that the update be installed for those products as soon as possible due to the thread posed by a successful attack.

More in the article.

Time to start checking Java.com for updates from Oracle that fix the latest Bugfixes for Java for your Windows, Solaris, and Linux operating systems. Linux users can also check their distros for these updates, and Mac users should start checking rigorously for updates to Java SE 6 from Apple.

NOTE: As of 10:37 AM EDT today, April 28, 2012, the Java website still shows Java SE 6, Update 31.

You will want to check the download links on Security Garden’s posting for the most recent updates. Or here on Oracle’s download page for Java SE Runtime Environment 6 Update 32 for Linux, Solaris, Windows (mainstream version that works with most applications). Mac OS X users still need to get their Java SE 6, Update 32 from Apple, so please keep checking!

Thanks for keeping us updated on Oracle’s Java status, Security Garden!

New, sneakier Flashback malware infects Macs

New, sneakier Flashback malware infects Macs – Computerworld

A new, sneakier variant of the Flashback malware was uncovered yesterday by the French security firm Intego.

Flashback.S, which Intego described Monday, uses the same Java vulnerability as an earlier version that has infected an estimated 820,000 Macs since its appearance and still plagues over 600,000 machines.

But unlike Flashback.K, the variant that first surfaced last month and has caused consternation among Mac users, Flashback.S never asks the victim to enter an administrative password for installation, but instead relies only on the silent exploit of the Java bug to sneak onto the system.

“The differences are very subtle,” Peter James, a spokesman for Intego, said in an interview Tuesday. “There’s no password request [by Flashback.S].”

Much more in the two page article.

Apple will likely need to update their seek and destroy tool very quickly to help users stay free of this new variant.

If you think you are beginning to need an antivirus/antimalware solution, there are quite a few out there. Below are just a few:


Sophos Anti-Virus for Mac Home Edition
– Sophos has a worthy product out there and it is nice that they make their money on corporate/business computers and offer the home version for free.

ClamXav The Free Anti-Virus Solution for Mac OS X It uses the popular open source ClamAV engine as it’s back end and has the ability to detect both Windows and Mac threats.

There are other options as well for the Pay to Play crowd.

ESET Cybersecurity for Mac

And others from Intego Virus Barrier for Mac free and Pro versions available in the Mac App Store. Intego as noted above found this newest FlashBack in the wild). Other Mac antivirus firms Symantec/Norton, and many more.

Many of these come with a heavy CPU usage hit that is very annoying considering the small number of actual threats out there for the Mac. Of course some users may feel that the ones that provide real time protection are the way to go, some may feel it is worth it if their Macs are speedy enough and they have enough RAM.

For those who don’t think they need a Mac antivirus just yet, if you don’t use Java or none of your programs use Java, you could go to the ~/Applications/Utilities/Java Preferences.app and disable Java until you actually need it and then re-enable it as needed. It’s a very easy thing to do really.

Or you could set up AppleScript to monitor areas where malware might inject itself so it will alert you.

Monitor OS X LaunchAgents folders to help prevent malware attacks – CNET

Some additional locations to add can be found at MrAnderson.info here.

Also installing Piriform CCleaner for Mac is a great idea and can be run as needed very quickly every day even.

Certainly less of a system resource hit and one could still have a non-resident antivirus and scan at your convenience and respond if the Applescript tells you something is going on that you didn’t instigate by installing a program, etc.

The Applescript monitoring locations that you can set up is built with Mac OS X which is light on resources and free. The Applescript monitoring does a similar thing as WinPatrol does in Windows – but of course in a very small area comparatively. WinPatrol does so much more but the key similarity is the monitoring for changes to areas that malware can hit a Windows PC.

What we need for people who are not very savvy about these things is a MacPatrol app like WinPatrol.

Call Starkist