November 18th, 2009

Mozilla locks out rogue Firefox add-ons

Posted by Ryan Naraine @ 10:33 am

Categories: Anti Virus, Arbitrary Code Execution, Browsers, Denial of Service (DoS), Exploit code, Firefox, Malware, Microsoft, Mozilla, Open source, Patch Watch, Vulnerability research

Tags: Mozilla Firefox, Mozilla Corp., Migration Document, Web Browsers, Internet, Ryan Naraine

Mozilla has made a significant tweak to this Firefox 3.6 code base to block rogue add-ons from loading in the browser’s application components directory.

This will most certainly block developers and software vendors from silently installing Firefox add-ons without explicit user permission.  It will also significantly reduce browser crashes linked to third-party add-ons, Mozilla said. Read the rest of this entry »

October 28th, 2009

Opera browser dinged by code execution flaw

Posted by Ryan Naraine @ 9:18 am

Categories: Arbitrary Code Execution, Browsers, Data theft, Denial of Service (DoS), Exploit code, Firefox, Malware, Mozilla, Open source, Passwords, Patch Watch

Tags: Opera Browser, Flaw, Opera Software ASA, Web Browser, Domain Names, Web Browsers, Patches, Security, Internet, Ryan Naraine

Mozilla isn’t the only alternative browser maker struggling with serious security problems.

On the same day Mozilla shipped a Firefox update to fix multiple critical vulnerabilities, Opera dropped a major patch to fix three documented flaws, including a memory corruption issue that exposes users to code execution attacks. Read the rest of this entry »

October 28th, 2009

Firefox hit by multiple drive-by download flaws

Posted by Ryan Naraine @ 7:34 am

Categories: Arbitrary Code Execution, Botnets, Browsers, Data theft, Denial of Service (DoS), Exploit code, Firefox, Malware, Mozilla, Open source, Passwords, Patch Watch, Privacy, Responsible disclosure, Vulnerability research

Tags: Mozilla Firefox, Attacker, Flaw, Vulnerability, Web Browser, Mozilla Corp., Web Browsers, Security, Internet, Ryan Naraine

Mozilla’s flagship Firefox browser is vulnerable to at least 11 “critical” vulnerabilities that expose users to drive-by download attacks that require no user interaction beyond normal browsing.

The open-source group shipped Firefox 3.5.4 with patches for the vulnerabilities, which range from code execution risk to the theft of information in the browser’s form history. Read the rest of this entry »

October 19th, 2009

Mozilla blocks (then unblocks) dangerous MS .NET Firefox add-on

Posted by Ryan Naraine @ 5:29 am

Categories: Adobe, Anti Virus, Arbitrary Code Execution, Browsers, Data theft, Denial of Service (DoS), Exploit code, Firefox, Google, Google Chrome, Malware, Microsoft, Mozilla, Open source, Patch Watch, Pen testing, Uncategorized

Tags: Mozilla Firefox, Microsoft Corp., Mozilla Corp., Add-on, Web Browsers, Spyware, Adware & Malware, Cyberthreats, Security, Viruses And Worms, Internet

FINAL UPDATE: In the Threatpost podcast above, Mozilla’s Mike Shaver explains what happened (.mp3)

[ UPDATE: Mozilla has now removed the extension from the blocklist after Microsoft clarified some information in its bulletin on how Firefox users were affected.  I'll attempt to get to the bottom of what appears to be a case of miscommunication ]

Mozilla has added the Microsoft .NET Framework Assistant add-on to its blacklist, a move that effectively disables the dangerous extension and plug-in for all Firefox users.

The move comes in the wake of an admission from Microsoft that the add-on was exposing users to drive-by malware downloads via a remote code execution vulnerability. Read the rest of this entry »

October 16th, 2009

Podcast: Inside the OWA attacks, Patch Tuesday wrap-up

Posted by Ryan Naraine @ 1:35 pm

Categories: Adobe, Anti Virus, Botnets, Browsers, Complex Attacks, Data theft, Denial of Service (DoS), Exploit code, Firefox, Flash, Malware, Microsoft, Mozilla, Oracle

Tags: Attack, Microsoft Outlook Web Access, Microsoft Outlook, Podcasts, Phishing, Microsoft Office, Office Suites, Software, Internet, Security

In this podcast with Threatpost co-editor Dennis Fisher, I discuss the recent Outlook Web Access phishing attacks, the Microsoft/Adobe patchapalooza and the true extent of the botnet/malware epidemic.  Listen here.

October 16th, 2009

Microsoft exposes Firefox users to drive-by malware downloads

Posted by Ryan Naraine @ 9:24 am

Categories: Adobe, Anti Virus, Arbitrary Code Execution, Browsers, Complex Attacks, Data theft, Denial of Service (DoS), Exploit code, Firefox, Flash, Google, Google Chrome, Hackers, Malware, Metasploit, Microsoft, Mozilla, Open source, Passwords, Patch Watch, Pen testing

Tags: Google Inc., Mozilla Firefox, Vulnerability, Malware, Microsoft Internet Explorer, Microsoft Corp., Attack Vector, Web Browser, Google Chrome, Plug-in

Remember that Microsoft .NET Framework Assistant add-on that Microsoft sneaked into Firefox without explicit permission from end users?

Well, the code in that add-on has a serious code execution vulnerability that exposes Firefox users to the “browse and you’re owned” attacks that are typically used in drive-by malware downloads. Read the rest of this entry »

October 9th, 2009

Mozilla 'Plugin Check' keeps Firefox add-ons secure

Posted by Ryan Naraine @ 9:06 am

Categories: Adobe, Botnets, Browsers, Data theft, Exploit code, Firefox, Flash, Google Chrome, Mozilla, Open source, Patch Watch

Tags: Mozilla Firefox, Web Browser, Mozilla Corp., Plug-in, Web Browsers, Internet, Ryan Naraine

Mozilla has expanded its Plugin Check service to provide an easy way for Firefox users to pinpoint browser add-ons that might be vulnerable to hacker attacks.

The new service, available here, effectively scans the browser for all installed plug-ins and provides one-click options to apply patches if an outdated plugin is found. Read the rest of this entry »

September 17th, 2009

Firefox Flash patch nudge working, but...

Posted by Ryan Naraine @ 9:26 am

Categories: Adobe, Anti Virus, Arbitrary Code Execution, Browsers, Data theft, Exploit code, Firefox, Flash, Malware, Mozilla, Open source

Tags: Adobe Systems Inc., Mozilla Firefox, Macromedia Flash Player, Malware, Mozilla Corp., Web Browsers, Internet, Ryan Naraine

Mozilla’s move to nudge Firefox users into updating the browser’s Flash Player plug-in is being hailed as a “phenomenal” success with about 10 million users clicking through to the Web page with Adobe’s patch.

Mozilla released some brief statistics to track the success of its new program, which serves up a visual warning to Firefox users if their version of the ever-present Adobe Flash Player plug-in is out of date. The program started last week with the releases of Firefox 3.5.3 and Firefox 3.0.14.

Read the rest of this entry »

September 9th, 2009

Mozilla patches 'drive-by download' security flaws

Posted by Ryan Naraine @ 5:48 pm

Categories: Anti Virus, Browsers, Data theft, Denial of Service (DoS), Exploit code, Firefox, Java, Mozilla, Open source, Patch Watch, Responsible disclosure

Tags: Web, Mozilla Firefox, Attacker, Vulnerability, Patch Management, Web Browser, Mozilla Corp., Web Browsers, Patches, Security

Mozilla has released a new version of its flagship Firefox browser to fix 10 vulnerabilities that put Web surfers at risk of code execution attacks.

The Firefox 3.5.3 update — available for Windows, Mac and Linux users — patches security holes that could allow drive-by download attacks if a user simply surfs to a booby-trapped Web site.

Read the rest of this entry »

September 8th, 2009

Firefox to run checks for Adobe Flash patch

Posted by Ryan Naraine @ 11:03 am

Categories: Adobe, Anti Virus, Arbitrary Code Execution, Browsers, Data theft, Denial of Service (DoS), Exploit code, Firefox, Flash, Mozilla, Passwords, Patch Watch, Pen testing

Tags: Adobe Systems Inc., Mozilla Firefox, Mozilla Corp., Plug-in, Nightingale, Web Browsers, Internet, Ryan Naraine

Starting with the upcoming releases of Firefox 3.5.3 and Firefox 3.0.14, Mozilla will warn users if their version of the popular Adobe Flash Player plug-in is out of date, according to Mozilla Human Shield Johnathan Nightingale.

Once the browser is updated, Mozilla will present the user with a visual notice on its first-run Web site that the Flash Player plugin contains security and stability vulnerabilities.

Read the rest of this entry »