February 7, 2007 2:59 PM PST
Two flaws found in Firefox
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Both flaws were announced by SecuriTeam, a division of Beyond Security, this week. The first flaw lies in Firefox's pop-up blocker feature, according to a SecuriTeam statement on Monday. The browser typically does not allow Web sites to access files that are stored locally, according to the official report, but this URL permission check is superseded when a Firefox user has turned off pop-up windows manually. As a result, an attacker could use this flaw to steal locally stored files and personal information that might be stored in them.
A possible scenario for such an attack would involve the user clicking on a malicious link that would furtively plant a target file equipped with an exploit code on the computer's hard drive. Then it would display a prompt asking the user to allow a pop-up to appear in order to play a video file or download. The attacker-supplied file would then be loaded thanks to the browser flaw, which could give the attacker local file read privileges.
It appears that this flaw may only apply to older versions of Firefox, prior to the current 2.0 release, but Beyond Security was unavailable for comment on the matter.
The second flaw, announced by SecuriTeam on Wednesday, concerns Firefox's phishing protection feature. With this vulnerability, an adept phisher could fool the browser into believing that a fraudulent site is actually secure by adding particular characters into the URL of its Web site.
The phishing flaw does appear to apply to the current 2.0.0.1 version of Firefox.
Mozilla was unavailable for comment on Wednesday.
See more CNET content tagged:
flaw, phishing, Firefox, pop-up blocker, attack
25 comments
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Changes are that you're more secure in IE7 protected mode under Windows Vista.
Mozilla will patch those puny flaws within hours, whereas Microslop takes months to think about how to develop patches for their flawed products and they seldom if ever work!
Windows 'fails' active virus test
<a class="jive-link-external" href="http://news.bbc.co.uk/2/hi/technology/6331959.stm" target="_newWindow">http://news.bbc.co.uk/2/hi/technology/6331959.stm</a>
When Vista was launched on 30 January, Microsoft chairman Bill Gates claimed that it was "dramatically more secure" than other operating systems.
He lied again, of course. Force of habit with Billy boy!!
Firefox 2.0 has been available free for months & has not been shown to have these flaws. Or to put it another way, I switched to Firefox full time initially due to several, consecutive flaws I experienced in IE, & discovered it was a much faster, superior browser along the way. It is also interesting to note that Spybot's immunization feature protects against IE flaws, specifically. I think I will stay with what I know is working.
laugh this morning!
ad-free version Opera costs something like $35 IIRC (unless
that's changed - has it?), else you're stuck w/ valuable desktop
space being eaten by ad banners on the free version.
2) I actually use Safari when I'm on the Mac (it's a modified fork
of Konquerer, and works very, very well IMHO).
/P
This article just puts the exclamation point on the risks of adding another browser to the Windows environment. Despite all the OpenSource promises of impervious security because of "many eyes" examining the code, Firefox has been patched again and again, proving that it increases the attack profile on your PCs. Firefox has its own share of problems that must be patched regularly. Installing and using it just makes your security problems GREATER, because you have to worry about its flaws, and flaws in it's myriad, god-knows-what-source extensions.
There are a series of security steps one can take (besides having a clue) to make IE just as broken as Firefox (by eliminating the ability to run AvtiveX components and disabling ActiveScripting.) So if you can't avoid risky sites, and clicking on OK when you shouldn't, then just make IE as clueless as Firefox.
Just don't drink the Koolaid and install another security risk like Firefox on your PC.
sometime.
2) By your logic, why do you even bother using A/V software?
MSFT already has one... that doesn't work so well (just like most
other brands). Why do you bother installing any nice games...
you have Freecell and Solitare in there, do you not? Why bother
with Photoshop... you've got MS Paint.
/P
The sad fact is that using "IE" to access Web-sites has been proven to be far, FAR, more DANGEROUS to the basic security of both, Windows, and the users-computer, than using "Firefox" (or, almost ANY, other non-MS applications). Yes, even, despite the FAR SMALLER INCIDENCE of "security risks" that have, occasionally, been discovered in various "Open-Source software" packages.
In short, as many security-experts (and even National security-advisories) have repeatedly pointed out, Microsoft software DOES tend to have "...the largest number of serious-flaws", therefore, using software OTHER than "Microsoft Windows" (and its "integrated" components, and applications), ...DOES VASTLY IMPROVE BASIC SECURITY.
So, using non-Microsoft software DOES NOT make a computer less secure. But, rather, it CAN help mitigate the numerous, more-serious, "flaws", and "security threats" that Microsofts fundamental product-philosophies has been shown to have created.
Besides... this particular threat can, apparently, be easily eliminated, simply by updating the "free" browser.
In short... the REAL "Kool-Aid" drinkers, would be those people who, very-foolishly, ONLY used Microsoft-products.