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As if the IE vulnerability wasn’t enough

January 19th, 2010 by Hescominsoon

Full Disclosure: Microsoft Windows NT #GP Trap Handler Allows Users to Switch Kernel Stack.

If you honestly believed Vista or 7 was a total rewrite because Microsoft said so this issue blows that straight out of the water. This is code from back in the nt.x days.  This allows anyone to elevate themselves to kernel level without any kind of notification.  Vista and 7 were not supposed to have any dos or 16 bit code left in them…guess what?  It’s still there.  The workarounds are easy for experienced administrators.  I will be implementing the recommended configuration of not allowing the execution of 16 bit code.  Luckily 64 bit versions appear to not be affected.

Time to Block DLL’s at the firewall.

January 19th, 2010 by Hescominsoon

Computer Security Research – McAfee Labs Blog.

This is an expansion of the most recent IE exploit.  Now comes the analysis.

Allowing a system level file for windows(in this case a dll) be executable without any kind of security context is a really bad idea.  That’s really all  Activex is but there are several other DLL’s inside of IE that allow other DLL’s to be executed.  In this case it was mshtml.dll.  Mshtml.dll was the source of hte exploit and now a further analysis of the malware shows it uses it’s own dll to leverage this vulnerability.

ECC HIGHLY reccomends you do one of two things:

1.  Simply don’t use IE at all

2.  If you can’t(or won’t) at least get your security setup to wholesale blacklist dll’s at the firewall.  This will break some sites that are coded for IE.  Many of these sites will work under Firefox as well.

Praetorian Prefect | Using Group Policy to Disable JavaScript in Adobe PDF Files

January 15th, 2010 by Hescominsoon

Praetorian Prefect | Using Group Policy to Disable JavaScript in Adobe PDF Files.

This is also a good idea.  Adobe right now is having all kinds of JavaScript issues.  Killing JavaScript across the entire network is a good idea.

IE Opens Your System to Baddies again. Video of Exploit online. Breathe deeply and say: Firefox, Chrome

January 15th, 2010 by Hescominsoon

This was an exploit form back in ie6.  It is present in all version up to 8.  mshtml.dll once again has a major issue that allows remote sites to take over your machine.  If you are running ie6, ie7, or ie8 you are vulnerable.  HOWEVER if you have DEP turned on for ie 7 or 8 then the threat is reduced but not eliminated.  This is also why you NEVER surf on a server.  Frankly I am going to extend Microsoft’s advice.  Raise ALL security levels to high except trusted sites…leave it at medium(for windows updates) then never launch IE again.  I am being dead serious.

VIDEO OF EXPLOIT IN ACTION.  Blow the video up to full screen then watch for a list that shows up at around 1 minute.  Notice how notepad is running nicely.  At around 1 minute 50 seconds the “hacker” issues a kill command followed by a number.  That number is the notepad.  watch as notepad goes boom..no warning..no notifications.  This person has full control of your system..all because of a badly designed OS and browser.  Notice the users on the right.  Those are system processes..processes even the administrator does not have direct access to.  I have said it over and over having a web browser tied so closely to the kernel is a bad idea.  As long as IE exists in it’s current form Windows will NEVER be remotely secure.

Here’s the backstory.  Apparently some Chinese folks(possibly the gov’t) started using this unknown security hole in IE to start trying to get into various activists that are opposed to the vast range of Chinese gov’t controls.  They targeted Google because this is where these targeted activists had their mail.  Google detected this activity and began a backtrace.  They found out that multiple large companies had also been attacked using this issue.  The story is continuing to unfold.  The only fix available right now is to put all of your IE settings up to high.  This has the effect of making IE unusable on the internet.

My recommendation:  Use either google chrome or firefox.  Don’t bother with IE anymore…at all.  There’s so many links with full information I am not going to embed them into this post.  The list follows.

*UPDATE* there are quite a few programs that idiotically use IE to operate.  Now various exploit writers and researchers are hitting these as well.  Many other programs are now falling over after being hit either with IE exploits or ones similar that are now being found in a rash of other software.

Google’s Initial Response disclosure of what was targeted and revelations of other companies hit

Microsoft’s confirmation and advisory.

Other companies also hit.

(This list will continue to grow)

Mcafee has multiple postings:

1 2 3(twitter feed) 4

*UPDATE*  Itworld has much the same opinion of IE as I have had for a long time.

Cert, Securosis, and Me Screw up a Major Security Warning

December 1st, 2009 by Hescominsoon

Uncommon Sense Security: CERT spreads marketing BS and misinformation.

I did this one quickly without fully vetting the article because i was in a hurry…bad move.  Securosis and CERT misidentify several things as clientless when they aren’t like OpenVpn.  The only “clientless” apps are those that run purely in the browser and do not require activex or java.  Most of the “affected” or “unknown” software listed is NOT clientless.  Sorry for the mess on my part.

Web Based VPN’s are a bad Idea

November 30th, 2009 by Hescominsoon

US-CERT Vulnerability Note VU#261869.

Via Securosis

Web based VPN has always been a bad idea.  This is also known as “clientless” vpn meaning you don’t have to fire up a separate application for a vpn.  Like anything in the “cloud” this type of arrangement offers no real security benefit.

IE6 and 7 Busted. Upgrade to IE8 or Firefox

November 22nd, 2009 by Hescominsoon

New Zero-Day Flaw Discovered in IE7 | threatpost.

New Code is Bad Code(as per Stever Gibson @grc.com)

November 12th, 2009 by Hescominsoon

Laurent Gaffié blog: Windows 7 / Server 2008R2 Remote Kernel Crash.

notice this is only in the two major operating systems that use the new smb protocol by Microsoft?  Vista isn’t mentioned but i bet this will kill Vista as well.

MIcrosoft’s Newest Operating Systems Vulnerable to Old Flaw

September 10th, 2009 by Hescominsoon

Microsoft Confirms SMB2 Flaw, Heightens Severity

By Ryan Naraine

Microsoft has issued a formal security advisory to confirm the remote reboot flaw in its implementation of the SMB2 protocol, going a step further to warn that a successful attack could lead to remote code execution and full system takeover.

via Microsoft Confirms SMB2 Flaw, Heightens Severity | threatpost.

Ugh.  This is an issue from 9x and 2k.  Sounds like some of the same old mistakes are still being committed int he latest iterations of Windows.

Facebook Users and Others Watch out.

August 23rd, 2009 by Hescominsoon

(updated) 4Chan launches embarrassing attack on devout Christians on Facebook – The Next Web.

4chan first went after Scientology…now they are after Christians.  If you have been spoofed on your facebook change your passwords on everything(not just facebook but everything)…yesterday.  I say this because this story is developing quickly.  4chan users are hitting not just facebook but paypal and other sites as well.

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