Showing posts with label zero-day. Show all posts
Showing posts with label zero-day. Show all posts

Tuesday, 15 March 2011

CRITICAL Zero-Day Security Exploit In-The-Wild: Adobe Flash & Adobe Acrobat & Adobe Reader

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Q: So Adobe! How's that quarterly 'in-band' update schedule working for you?
A: Um...

After a nice break from The Summer Of Security Holes, we are back on track with CRITICAL Adobe zero-day exploits. This one hits ALL versions of Adobe Flash (v10.2.152.33 on down) on ALL OS platforms, except of course Apple's iOS which does not allow Flash content. Now perhaps skeptics can understand why. It also hits versions 10.0.1 on down through v9.x of Adobe Reader and Adobe Acrobat on Mac and Windows.

Here is the security advisory from Adobe.
This vulnerability (CVE-2011-0609) could cause a crash and potentially allow an attacker to take control of the affected system. 
Here is an article by Electronista.
Given the popularity of the Flash platform, it would seem that this could be a somewhat difficult situation to manage.
Here is the advisory from Adobe's PSIRT (Adobe Product Security Incident Response Team) blog.
We are in the process of finalizing a fix for the issue and expect to make available an update . . . during the week of March 21, 2011.
And here are even more details from yet-another Adobe security blog, this time called ASSET (Adobe Secure Software Engineering Team).
We currently plan to address CVE-2011-0609 in Adobe Reader X with the next quarterly security update for Adobe Reader, currently scheduled for June 14, 2011.... We determined that the above patch schedule would allow us to provide the best balance of risk mitigation and admin/update costs for our customers.
Translation: Watch for patches of Adobe Flash Player, Adobe Acrobat and Adobe Reader v9.x (not 10.x) the week of March 21, 2011. There will be NO patch for Acrobat Reader v10.x until the scheduled quarterly "in-band" date of June 14, 2011. There is an explanation of this inexplicable schedule in the ASSET article.

The currently known exploit is a Microsoft Excel (XLS) file sent via email to victims. Embedded within this file is a Trojan horse Flash file (SWF). Adobe does not explicitly state that this specific file is directed only at Windows users. However, the details they provide refer only to using 'Protected Mode' in Adobe Reader, which is a Windows-only feature. Therefore, I can infer that this is a Windows-only exploit file.

Other exploits are possible. Therefore, until Adobe patch this hole, beware of Flash in general, either as straight Flash files OR embedded in another file type.

My solutions:

A) Use one of the many Flash blocking extensions in your web browsers AT ALL TIMES.

B) As a corollary of The Second Rule Of Computing:
  1. Only open files emailed to you AFTER you have verified that their source is legitimate.
  2. Only click on embedded Flash on web sites that have been verified to be legitimate.
C) Don't use Adobe Reader. Use Apple's Preview application.

D) If you just 'have to' use Adobe Reader: Be sure you are using 'Enhanced Security' inside the Preferences. You'll find it listed under 'Security (Enhanced)'. Note that this is enabled by default when you first install Adobe Reader.

E) Or to be totally safe: Remove Adobe Flash, Adobe Acrobat and Adobe Reader from your computer.

Q: Does this make the Internet more dangerous than ever?
A: You bet!

Q: Why does the Internet have to be such an annoying pain?
A: Bad coding practices by developers as well as poor code documentation, critical to cleaning up bad code.

Theoretically, newer coding students are being taught how to avoid computer memory security holes. However, even if they are diligent at writing 'perfect' code, other problems persist in the code languages themselves. For example, the Java code language was created specifically to never be able to exploit the user's computer. And yet it does. As I ever rant: We are still in The Stone Age Of Computing.

Q: Are Mac users really vulnerable to this security exploit?
A: Absolutely!

Keep in mind that this is not an Apple or Mac OS X problem. This is an Adobe problem. It is their software that is being exploited and ends up damaging the computer. There is nothing Apple can do to prevent Flash exploits apart from ban Flash, which is thankfully the case with all Apple iOS devices.

Meanwhile, whether this exploit will be targeted specifically at Macs is entirely up to the evil scumbag hackers writing the exploit code. If I hear of a Mac specific exploit file, I will post here.
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Thursday, 28 October 2010

Adobe Flash, Reader and Acrobat CRITICAL Security Hole Of The Month Club

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Another month, and other Adobe software security hole exploit. If you still use Flash, pay attention! This security hole is currently being exploited In-The-Wild.

Affected:

-> Adobe Flash Player 10.1.85.3 and earlier

-> Adobe Reader 9.4 and earlier 9.x versions

-> Adobe Acrobat 9.4 and earlier 9.x versions

Hackers exploit newest Flash zero-day bug
Those reports came from Mila Parkour, an independent security researcher who notified Adobe early today after spotting and then analyzing a malicious PDF file. According to Parkour, the rigged PDF document exploits the Flash bug in Reader, then drops a Trojan horse and other malware on the victimized machine.
Security Advisory for Adobe Flash Player, Adobe Reader and Acrobat

This issue is described in CVE-2010-3654.

Adobe provide a workaround in their 'Security Advisory' article linked above. They have promised to fix the security hole by November 9th.

Darn, Adobe blew their quarterly update schedule yet again. Can you comprehend why Adobe still believe in 'scheduled' security updates?
(o_0)

Wednesday, 27 October 2010

Firefox v3.6.12 Released <- Important security patch

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Just gotta love the Mozilla developers! Within A DAY Firefox has been updated to repair a nasty JavaScript security hole being exploited out In-The-Wild. So go grab the thing and update NOW:

Firefox v3.6.12 (English, US)








Thank you Mozilla!
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Firefox v3.5 & v3.6 Zero-Day Exploit: JavaScript Hell

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An active zero-day exploit of Firefox versions 3.5 and 3.6 been found In-The-Wild. (The current version of Firefox is v3.6.11). Specifically, the Nobel Peace Prize website injects malware into victim computers via a newly discovered Firefox security hole. So far, the malware being injected is the Windows-only Trojan horse Belmoo-A. However, the injected malware could just as easily be any of the current Mac OS X Trojans.

Note of course that Trojan horses are inert until a 'LUSER' runs and installs them, providing it with their computer's Administrator password.

Firefox are aware of the situation and are working on a patch. In the meantime, they recommend the workaround of disabling JavaScript (aka ECMAScript), or installing and using the Firefox add-on NoScript. I use NoScript. I love it! I never leave my homepage without it.

As per usual, JavaScript is the bane of the Internet. However, Java isn't fairing too well either, much to everyone's dismay. I'll be writing about Java's security ills early next month.
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