'Browsers' Tagged Posts

Thunderbird 2.0.0.19 Released With Security Fixes

MFSA 2008-60 - Crashes with evidence of memory corruption (rv:1.9.0.5/1.8.1.19) MFSA 2008-61 Information stealing via loadBindingDocument MFSA 2008-64 XMLHttpRequest 302 response disclosure MFSA 2008-65 Cross-domain data theft via script redirect error message| MFSA 2008-66 Errors parsing URLs with leading whitespace and control characters MFSA 2008-67 Escaped null characters ignored by CSS...

Thousands of legitimate sites SQL injected to serve IE exploit

"Once again confirming the trend of having more legitimate sites serving exploits and malware than purely malicious ones, Chinese hackers have been keeping themselves busy during the last couple of days, launching massive SQL injection attacks affecting over 100,000 web sites. The SQL injection attacks serving the just patched Internet Explorer...

Firefox Halting 2.x security patching/support, urges users to upgrade to 3.0 or get pwned

"Mozilla has told Firefox users that it will no longer be updating version 2 of the browser and they should upgrade to version 3 right away. The warning came alongside a security update patching ten problems, four of them critical. The critical problems involve cross-site scripting. That’s a serious concern as...

Microsoft issues emergency patch for IE

"Microsoft will push out an emergency security patch for Internet Explorer on Wednesday, addressing a critical security hole currently being exploited in the wild. Redmond issued advanced notice for tomorrow's fix, describing the out-of-cycle patch as protection from "remote code execution." Unscheduled updates are pretty rare for Microsoft, stressing the potentially...

FireFox 3.0.5 fixes three critical security flaws

"Mozilla has rushed out updates to plug a few critical holes in versions 2 and 3 of its popular open source Firefox browser. Firefox 3.0.5 fixes three critical security flaws in the browser, while 2.0.0.19 stitches four critical vulns. Mozilla said that XSS vulnerabilities in SessionStore, XSS and so-called JavaScript “privilege...

Opera releases update for 'extremely severe' vulns

"Opera pushed out an update to its popular web browser on Tuesday that fixes vulnerabilities it described as "extremely severe". The update fixes seven security bugs, some of which were previously known. Version 9.63 of the browser addresses separate code injection risks stemming from flaws in HTML parsing and text inputing,...

Google Chrome Receives Lowest Password Security Score

"Google's new web browser may be fast and slim, but the password management features it offers are full of bugs. Chapin Information Services (CIS) reported critical vulnerabilities in this software during its beta period, all of which were unfixed at release time. Among the problems are three in particular that, when...

Internet Explorer 8.0 Beta 2 Anti-XSS Filter Vulnerabilities

Rafel Ivgi has published an extensive list of IE8 XSS filter evasions. "Aspect9 has discovered several vulnerabilities in Microsoft Windows Internet Explorer 8.0 Beta 2. This new version of Microsoft's famous browser includes new security improvements such as a Cross Site Scripting(XSS) filter. This version also includes a new object that...

Google publishes Browser Security Handbook

Michal Zalewski from google has published an an extremely in depth guide describing the various behavioral differences between the major browsers. "I am happy to announce the availability of our "Browser Security Handbook" - a comprehensive, 60-page document meant to provide web application developers and information security researchers with a one-stop...

Inside Safari 3.2’s anti-phishing features

An article over at macworld discusses the anti phishing features in the new safari."The release of Safari 3.2 on November 13 displayed Apple’s penchant for cryptic release notes, as the company describes all three versions as featuring “protection from fraudulent phishing Web sites.” Let's decode that for you: Safari 3.2 offers...

Firefox 3.0.4 Released to address multiple security flaws

A handful of security vulnerabilities have been fixed in the latest version of firefox. Fixed in Firefox 3.0.4 MFSA 2008-58 Parsing error in E4X default namespaceMFSA 2008-57 -moz-binding property bypasses security checks on codebase principalsMFSA 2008-56 nsXMLHttpRequest::NotifyEventListeners() same-origin violationMFSA 2008-55 Crash and remote code execution in nsFrameManagerMFSA 2008-54 Buffer overflow in...

Firefox 3.0.2 released to address multiple security flaws

Firefox 3.0.2 has been released which addresses the following security flaws. MFSA 2008-44 resource: traversal vulnerabilitiesMFSA 2008-43 BOM characters stripped from JavaScript before execution MFSA 2008-42 Crashes with evidence of memory corruption (rv:1.9.0.2/1.8.1.17) MFSA 2008-41 Privilege escalation via XPCnativeWrapper pollution MFSA 2008-40 Forced mouse drag Read more at : http://www.mozilla.org/security/known-vulnerabilities/firefox30.html#firefox3.0.2

Mozilla security chief: Apple should open up

"Mozilla's security chief said Apple should disclose more information about the steps it takes to protect customers from malware and other computer-born threats. At a security conference on Monday, Window Snyder said open communication about recently reported vulnerabilities and ongoing processes for locking down products is a core responsibility of security...

Google Chrome criticised over lack of security

"Users should wait to use Google Chrome after its vulnerabilities were exposed. Randy Abrams, director of Technical Education at ESET, claimed that as vulnerable code was used users should only use Chrome when they are not viewing sensitive pages. He claimed that the oversight by Google is indicative of either a...

Microsoft IE8 and Google Chrome - Processes are the New Threads

"I happened to install Google Chrome (Alpha) the same day I installed Internet Explorer 8 (Beta). I noticed immediately, as I'm sure many of you have, that both browsers isolate tabs in different processes. Unix folks have known about the flexibility of forking a process forever. In Unix, fork() is just...

Google releases Chrome Web browser

UPDATED: Yet another issue is discovered, this time a DOS. UPDATED: 3 hours later a vulnerability has been published. Google has just released an open sourced browser based on Apple's Webkit. I'm guessing it will be less than 48 hours before the first vulnerability is discovered. Since Safari uses Webkit it...

Firefox 2.0.0.15 Addresses Multiple Security Issues

Firefox 2.0.0.15 was released addressing the following security issues. MFSA 2008-33 Crash and remote code execution in block reflow MFSA 2008-32 Remote site run as local file via Windows URL shortcut MFSA 2008-31 Peer-trusted certs can use alt names to spoof MFSA 2008-30 File location URL in directory listings not escaped...

Microsoft outlines extensive IE8 security improvements

Microsoft has posted a very extensive article outling the security improvements to IE8. Improvements have been made to the following area's. - Cross-Site-Scripting Defenses - Safer Mashups (HTML and JSON Sanitization) - MIME-Handling Changes (Restrict Upsniff and Sniffing Opt-Out) - Add-on Security - Protected Mode - Application Protocol Prompt - File...

Securityfocus interview with Mozilla security team

"Mozilla released its latest browser, Firefox 3.0, this week. SecurityFocus contributor Federico Biancuzzi tracked down two key members of Mozilla's security team, Window Snyder and Johnathan Nightingale, to learn more about the security features included in this major release. They discussed the protection against phishing and the new malware protection, the...

Firefox3 Released

Firefox3 has been released. This release improves memory management, speed, and has introduced a number of new security features. Download Link: http://www.firefox.com

Tools: The Browserrecon Project

"Most of todays tools for fingerprinting are focusing on server-side services. Well-known and widely-accepted implementations of such utilities are available for http web services, smtp mail server, ftp servers and even telnet daemons. Of course, many attack scenarios are focusing on server-side attacks. Client-based attacks, especially targeting web clients, are becoming...

Browser makers focus on reducing malware and phishing

"Microsoft unveiled two security features that will debut in the next version of its browser, Internet Explorer 8: the Safety Filter, which warns users of potentially malicious Web activity, and domain highlighting, which uses bold text to highlight the real domain of any Web site. The software giant stressed that the...

Mozilla Dismisses New Firefox Flaw Warning

"Mozilla chief evangelist Mike Shaver says the latest Firefox information leakage bug warning is exaggerated. Published reports of an information leakage vulnerability affecting fully patched versions of the open-source Firefox browser have been greatly exaggerated, according to Mozilla chief evangelist Mike Shaver. Shaver's sharp retort follows the release of an advisory...

Netscape Assinated by AOL

It is with great sadness that I post news stating that Netscape will receive no more updates after February 1, 2008. I've been a long netscape user (since 1995). "AOL has a long history on the internet, being one of the first companies to really get people online. Throughout its lifetime,...

WASC Script Mapping Project released

Romain Gaucher writes "The Web Application Security Consortium is pleased to announce the first results of the Script Mapping project! At this stage in the project we were able to cover most of the test cases for Internet Explorer 7, Firefox 2 and Safari 3. The results can be found on...

Mozilla beefs up security with Firefox 3

"The Mozilla Foundation released on Monday a beta version of the group's latest open-source Firefox browser, rewriting parts of the code and enhancing security. Firefox 3 Beta 1 adds anti-malware features to the browser, using a similar mechanism as the anti-phishing feature in Firefox 2, harnessing a Google-generated blacklist of sites...

Browser Security: I Want A Website Active Content Policy File Standard!

UPDATE Before reading on any further I want to prefix that the purpose of this post is to begin a discussion on the ways a website can communicate to a browser to instruct it of what its behavior should be on that site. The example below is a "sample implementation" and...

How to Turn Your Browser Into a Weapon

"I wrote about three of my favorite Firefox extensions that help me stay safe when I'm browsing the darker areas of the Web and incoming email. Today, let's look at three other extensions: Those that can turn Firefox into a feature-filled, Web-hacking weapon. These extensions aren't required to use Firefox for...

Presentation: Future of Firefox and JavaScript

An interesting presentation was posted on the future of firefox, javascript, and the web worth checking out (click through the slides). "I just finished giving a presentation at the Future of Web Apps conference, here in London. Thanks to everyone who attended - I hope I didn’t sound too sleep deprived!...

Raising the bar: dynamic JavaScript obfuscation

"Couple of days ago one of our readers, Daniel Kluge, pointed us to a web page with some heavily obfuscated JavaScript code. The operation was typical and consisted of a compromised site that had an obfuscated iframe which pointed to the final web site serving various exploits. The obfuscation of the...

Mozilla Releases JavaScript Fuzzer at Blackhat

"Mozilla has been using an open-source application security testing tool, known as a fuzzer, for JavaScript to detect and fix dozens of security bugs in Firefox, Mozilla director of ecosystem development Window Snyder said Thursday at the Black Hat USA 2007 conference in Las Vegas. The JavaScript fuzzer found 280 bugs...

Mozilla Protocol Abuse

Larholm writes "First they came for Safari, but no one complained because it was beta. Then they came for Internet Explorer, but no one cared because that was to be expected. Finally they came for Mozilla, but there was no one left to speak out." Article Link: http://larholm.com/2007/07/25/mozilla-protocol-abuse/

Mozilla confirms own URL handling bug

"The Mozilla Foundation acknowledged over the weekend that its own Firefox browser allows links that can send malicious code to external programs, a security issue that the group had previously argued should be fixed by the browser maker. In early July, three researchers found a way to execute code in Firefox...

Securing Firefox: How to avoid hacker attacks on Mozilla's browser

"Security problems with Microsoft's dominant Internet Explorer browser helped pave the way for Mozilla Firefox to emerge as an alternative for Web surfers. However, Firefox users should be aware that hackers can exploit software flaws and design features to launch attacks. The following configuration changes, recommended by CERT/CC, can disable various...

New Security Features in Internet Explorer 7

"Markellos Diorinos from the IE team at Microsoft introduces the new security features in IE 7 and speaks about extended validation SSL certificates. He also covers the Certification Authority Browser Forum whose members apart from Microsoft include also the Mozilla Foundation, Opera Software and KDE." Article Link: http://www.net-security.org/article.php?id=1003

Same-Origin Policy Part 1: Why we're stuck with things like XSS and XSRF/CSRF

"The last few years have seen a constant rise in vulnerabilities like cross-site scripting (XSS), HTTP response splitting, and cross-site request forgery (XSRF or CSRF). While the vectors and exploit of each of these vulnerability classes vary, they all have one common thread. Each of these vulnerabilities exploits trust shared between...

Hacking Web 2.0 Applications with Firefox

"AJAX and interactive web services form the backbone of “web 2.0” applications. This technological transformation brings about new challenges for security professionals. This article looks at some of the methods, tools and tricks to dissect web 2.0 applications (including Ajax) and discover security holes using Firefox and its plugins. The key...

IE7 Is out, and vulnerable

IE7 has finally been released but according to Secunia a vulnerability has already been published. They also provide a test that can be performed to see if you're vulnerable. Article Link: http://www.theregister.co.uk/2006/10/19/ie7_release/ Advisory Link: http://secunia.com/Internet_Explorer_Arbitrary_Content_Disclosure_Vulnerability_Test/ Download IE7: http://www.microsoft.com/windows/ie/default.mspx

Firefox Zero-Day Code Execution Hoax?

"A public claim by hackers that Mozilla's Firefox browser is vulnerable to multiple code execution vulnerabilities may be an overblown hoax. On the heels of a ToorCon presentation where two security researchers—Mischa Spiegelmock and Andrew Wbeelsoi—warned that Firefox's implementation of JavaScript was badly flawed and could allow PC takeover attacks, Mozilla's...

IE 7 plus Vista security measures stop latest IE 0day

A great article at ZDNet explaining how Vista + IE7 stopped the latest IE 0day from exploiting the machine. "The initial security warnings are hardly perfect. I've seen similar ActiveX opt-in dialog boxes for other built-in ActiveX components. How is an unsuspecting user supposed to know which one is safe and...

Browser Fun Security Blog

"This blog will serve as a dumping ground for browser-based security research and vulnerability disclosure. To kick off this blog, we are announcing the Month of Browser Bugs (MoBB), where we will publish a new browser hack, every day, for the entire month of July. The hacks we publish are carefully...

Microsoft Releases 8 Patches on Security Patch Tuesday

"Of the eight most serious fixes, two affect Internet Explorer, one for JScript within Internet Explorer, one in Windows Media Player, two in Windows, one in Word, and another in PowerPoint. The patch for Word fixes a highly-publicized zero-day exploit that has already been used in several cyber attacks. The vulnerability...

Getting on the right side of IE 7 security

"But protecting the naïve user from the malicious attacker can mean the blameless developer loses a feature they were relying on. Vista Beta 2 secures what's just been renamed Internet Explorer 7+ by running it in a new protected mode, which restricts the changes IE can make to the registry and...