Enabling QR codes in Internet Explorer, or a story of a cross-platform memory disclosure

Posted by Mateusz Jurczyk of Google Project Zero In the previous series of posts parts 1 2 3 4, we discussed the exploitation process of a serious “blend” vulnerability CVE-2015-0093 / CVE-2015-3052, which was special in that it provided the attacker with an extremely powerful primitive arbitrary...

CVE-2015-2542

Microsoft Internet Explorer 10 and 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service memory corruption via a crafted web site, aka "Memory Corruption Vulnerability."...

Steganography Over JPEG

A remote code execution vulnerability has been reported in the way web browsers handle embedded content. To trigger this issue, an attacker may embed a malicious JPEG file in a webpage. Successful exploitation of this vulnerability will allow execution of arbitrary code on the vulnerable system...

Multi Purpose Fuzzer: zzuf

Multi Purpose Fuzzer zzuf is a transparent application input fuzzer. Its purpose is to find bugs in applications by corrupting their user-contributed data which more than often comes from untrusted sources on the Internet. It works by intercepting file and network operations and changing random...

Google to Publish Research on Browser Ad Injectors

Google is preparing to release new research on the prevalence of ad injectors, the often-unwanted browser extensions that inject ads onto Web pages, and the numbers will show just how widespread and problematic the software is. Ad injectors belong to that great, amorphous pile of applications tha...

DDoS Attack Against GitHub Continues After More Than Four Days

More than four days after it began, the massive DDoS attack on GitHub is still ongoing. The attack has evolved significantly since it started and GitHub officials said they believe that the goal of the operation is to force the site to remove some specific content. In the evening hours of March 2...

Adobe CVE-2011-2461 Remains Exploitable Via Flex Four Years After Patch

UPDATE: This article has been updated to add commentary and clarification from Adobe. A four year old Adobe Flash patch did not properly resolve a vulnerable Flex application, and attackers can exploit the bug, which is said to affect some 30 percent of Alexa’s top 10 most popular sites in the...

libpng: User-assisted execution of arbitrary code

Background libpng is a standard library used to process PNG Portable Network Graphics images. It is used by several programs, including web browsers and potentially server processes. Description Two vulnerabilities have been discovered in libpng: The pnguserversioncheck function contains an...

Grinder - System to Automate the Fuzzing of Web Browsers

Grinder is a system to automate the fuzzing of web browsers and the management of a large number of crashes. Grinder Nodes provide an automated way to fuzz a browser, and generate useful crash information such as call stacks with symbol information as well as logging information which can be used...

TA14-290A: SSL 3.0 Protocol Vulnerability and POODLE Attack

NCCIC / US-CERT National Cyber Awareness System: TA14-290A: SSL 3.0 Protocol Vulnerability and POODLE Attack 10/17/2014 12:27 PM EDT Original release date: October 17, 2014 Systems Affected All systems and applications utilizing the Secure Socket Layer SSL 3.0 with cipher-block chaining CBC mode...

WebBrowserPassView v1.56 - Recover lost passwords stored in your Web browser

WebBrowserPassView is a password recovery tool that reveals the passwords stored by the following Web browsers: Internet Explorer Version 4.0 - 11.0, Mozilla Firefox All Versions, Google Chrome, Safari, and Opera. This tool can be used to recover your lost/forgotten password of any Website,...

Browser Password Remover - Browser Website Login Password Removal Software

Browser Password Remover is the free software to quickly display and remove all the stored website login passwords from popular browsers. Most of the web browsers allow users to remember passwords and stores them into local database file. This file and all the stored passwords within it can be...

WebBrowserPassView - Recover lost passwords stored in your Web browser

WebBrowserPassView is a password recovery tool that reveals the passwords stored by the following Web browsers: Internet Explorer Version 4.0 - 10.0, Mozilla Firefox All Versions, Google Chrome, Safari, and Opera. This tool can be used to recover your lost/forgotten password of any Website,...

Browser Navigation Download Trick

No description provided by source. Another moderately interesting tidbit, I guess... It is an important and little-known property of web browsers that one document can always navigate other, non-same-origin windows to arbitrary URLs. Perhaps more interestingly, you can also navigate third-party...

MS IE 6.0,Mozilla 0.9.6,Opera 5.1 Image Count Denial of Service Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/3684/info An issue which affects users of multiple web browsers on Microsoft Windows platforms has been discovered. An unusually high image count may cause a denial of services to users who view the webpage containing the...

Sun Java Runtime Environment 1.x Java Plug-in JavaScript Security Restriction Bypass Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/11726/info A vulnerability is reported to exist in the access controls of the Java to JavaScript data exchange within web browsers that employ the Sun Java Plug-in. Reports indicate that it is possible for a malicious...

Firefox 1.x JavaScript Key Filtering Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/18308/info Multiple web browsers are prone to a JavaScript key-filtering vulnerability because the browsers fail to securely handle keystroke input from users. This issue is demonstrated to allow attackers to divert...

Internet Explorer 6.0,Firefox 0.8/0.9.x JavaScript Denial of Service Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/10998/info Web browsers from various vendors are reported prone to a JavaScript denial-of-service vulnerability. The specified JavaScript code will consume 100% of the CPU resources of the affected computer, crashing the...

Internet Explorer 5.5/6.0/7.0 JavaScript Key Filtering Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/18308/info Multiple web browsers are prone to a JavaScript key-filtering vulnerability because the browsers fail to securely handle keystroke input from users. This issue is demonstrated to allow attackers to divert...

MS IE 3/4/5,Netscape Communicator 4 IMG Tag DoS Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/3122/info An issue which affects users of multiple web browsers on Microsoft Windows platforms has been discovered. Multiple malicious IMG tags may cause a denial of services to users who view webpages they are embedded...