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CASEScontact.org advisory - Mozilla Firefox, Thunderbird and Sea Monkey - JavaScript vulnerability
Just the facts
     
Title   CASEScontact.org advisory - Mozilla Firefox, Thunderbird and Sea Monkey - JavaScript vulnerability
Description   The JavaScript vulnerability affects:
  • Firefox web browser
  • Thunderbird e-mail application and
  • SeaMonkey web browser,
which can be exploited by malicious people to take control of your computer and may allow remote execution of arbitrary code on your PC.
CyTRAP Labs ID   CT110068
Last update   2006-10-03
Original release date   2006-10-03
Systems affected  

If you use Mozilla Firefox, Thunderbird or Mozilla SeaMonkey this is a so-called zero-day exploit affecting users with the following operating systems:

  • Windows
  • Mac
  • Unix variants (Unix, Linux)

Read on and protect yourself right now, it is fast and easy.

PS. If your system is set up right regarding security preferences, you would not have to worry about this alert...

Below we explain how you can safe time and headaches while improving your security posture at the same time.

Select language  
Version number   1.0
ISSN   1603-9858
Verify threat   http://casescontact.org/alerts/110068
Risk assessment   High
Impact/Severity   High
 

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If you have additional information or corrections for this advisory please submit them via our contact form or by email to:

> updates at CASEScontact.org

     
How does it affect me?   Should I Worry?

Yes ==> If your PC runs the Firefox, SeaMonkey or the Thunderbird e-mail program, this affects you. Follow the steps below to minimize your risks(see below for link)

A) The Threat may result in an attacker to bypass certain security restrictions and taking control of the affected system.

B) Vulnerabilities At this time CyTRAP Labs has not confirmed these vulnerabilities that were disclosed by hackers attending a conference. Find out more details here:

- CyTRAP Labs advisory - Mozilla Firefox JavaScript vulnerability

These vulnerabilities can be mitigated by disabling JavaScript and Java in all affected products, see our solution section for help

C) Impact . Successful exploitation can result in a user having his or her system compromised. The vulnerabilities can be exploited by malicious people to execute arbitrary code on a vulnerable system.

     
Systems affected   Vulnerabilities have been reported with:
  • Mozilla Firefox
  • Mozilla Thunderbird
  • SeaMonkey
     
 

Minimize your exposure to this threat - follow the steps outlined below
     
Much Gain - Little Pain - Do this   One way to get rid of this problem fast is to allow JavaScript, Java and other executable content only for trusted domains of your choice, such as your home-banking web site. You can get a free tool here:

- CyTRAP Labs choice - Free Tool for Firefox, Mozilla and SeaMonkey - Allowing JavaScript and Java execution at trusted sites only  

     
Other Actions   CyTRAP Labs will continue to monitor the situation and release additional updates when more information becomes available.

If you want, there is also the possibility to disable JavaScript and Java execution by changing the options in these affected programs. A step-by-step instruction can be found here:

CyTRAP Labs guide - Firefox zero-day vulnerabilities - what can a user do NOW?

     
Additional risk minimization   To avoid these problems in the future, why not set your program's options or preferences in such a way that it goes and automatically checks for updates. You can find an easy step-by-step explanation (takes 2 Min max) here for:

> CyTRAP Labs’ guide - Firefox browser - updates - setting your options to get them automatically
> CyTRAP Labs' guide - Thunderbird e-mail program - updates - setting your options to get them automatically    

 

If you need more information, please read on. Otherwise follow the steps outlined above.
     
Source   CyTRAP Labs EU-IST blog - advisory - Mozilla Firefox JavaScript vulnerability
Source URL   http://cytrap.eu/blog/?p=56
Source date   2006-10-03
Other source   CyTRAP Labs WinCurity blog
Other source URL   http://blog.casescontact.org/?p=151
Other source date   2006-10-03
CyTRAP labs ID   CT110068
 

CYTRAP resources - check it out - because it will help you better protect yourself
     
Related tips  

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Administrative
     
Author   Urs E. Gattiker - CyTRAP Labs
     
Revisions  
  • 1.0 - 2006-10-03 - First Version
  • Contact details   Web: http://CASEScontact.org
    E-mail: support01 at CASEScontact.org

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    Fax: +44(0)70-9237-6036, dial 3 send fax
     

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