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Security researchers at Microsoft have unveiled details of two critical and important zero-day vulnerabilities that had recently been discovered after someone uploaded a malicious PDF file to VirusTotal, and get patched before being used in the wild . In late March, researchers at ESET found a malicious PDF file on VirusTotal, which they shared with the security team at Microsoft "as a potential exploit for an unknown Windows kernel vulnerability." After analyzing the malicious PDF file, the Microsoft team found that the same file includes two different zero-day exploits—one for Adobe Acrobat and Reader, and the other targeting Microsoft Windows. Since the patches for both the vulnerabilities were released in the second week of May, Microsoft released details of both the vulnerabilities today, after giving users enough time to update their vulnerable operating systems and Adobe software. According to the researchers, the malicious PDF including both the zero-days e...

Facebook has admitted that the company gave dozens of tech companies and app developers special access to its users' data after publicly saying it had restricted outside companies to access such data back in 2015. It's an unusual clear view of how the largest social networking site manages your personal information. During the Cambridge Analytica scandal revealed March this year, Facebook stated that it already cut off third-party access to its users' data and their friends in May 2015 only. However, in a 747-page long document [ PDF ] delivered to Congress late Friday, the social networking giant admitted that it continued sharing data with 61 hardware and software makers , as well as app developers after 2015 as well. The disclosure comes in response to hundreds of questions posed to Facebook CEO Mark Zuckerberg by members of Congress in April about its company's practices with data of its billions of users. The Washington Post reported that the company...

If your mobile carrier offers LTE, also known as the 4G network, you need to beware as your network communication can be hijacked remotely. A team of researchers has discovered some critical weaknesses in the ubiquitous LTE mobile device standard that could allow sophisticated hackers to spy on users' cellular networks, modify the contents of their communications, and even can re-route them to malicious or phishing websites. LTE, or Long Term Evolution, is the latest mobile telephony standard used by billions of people designed to bring many security improvements over the predecessor standard known as Global System for Mobile (GSM) communications. However, multiple security flaws have been discovered over the past few years, allowing attackers to intercept user's communications, spy on user phone calls and text messages, send fake emergency alerts, spoof location of the device and knock devices entirely offline. 4G LTE Network Vulnerabilities Now, security researchers...

Typeform, the popular Spanish-based online data collection company specializes in form building and online surveys for businesses worldwide, has today disclosed that the company has suffered a data breach that exposed partial data of its some users. The company identified the breach on June 27th, and then quickly performed a full forensic investigation of the incident to identify the source of the breach. According to the company, some unknown attackers managed to gain unauthorized access to its servers and downloaded a partial data backups for surveys conducted before May 3rd 2018. Typeform confirmed that it patched the issue within just half an hour after identifying the intrusion, and emailed all the affected users, warning them to watch out for potential phishing scams, or spam emails. The company did not disclose any details about the vulnerability that was exploited by hackers to gain access to its servers, though it assured its users that no payment card details or pass...

A team of security researchers has discovered a new set of techniques that could allow hackers to bypass all kind of present mitigations put in place to prevent DMA-based Rowhammer attacks against Android devices. Dubbed RAMpage , the new technique (CVE-2018-9442) could re-enable an unprivileged Android app running on the victim's device to take advantage from the previously disclosed Drammer attack , a variant of DRAM Rowhammer  hardware vulnerability for Android devices, in an attempt to gain root privileges on the target device. You might have already read a few articles about RAMpage on the Internet or even the research paper, but if you are still unable to understand— what the heck is RAMpage —we have briefed the research in language everyone can understand. Before jumping directly on the details of RAMpage, it is important for you to understand what is RowHammer vulnerability, how it can be exploited using Drammer attack to hack Android devices and what mitigations G...

Downloaded anything from Gentoo's GitHub account yesterday? Consider those files compromised and dump them now—as an unknown group of hackers or an individual managed to gain access to the GitHub account of the Gentoo Linux distribution on Thursday and replaced the original source code with a malicious one. Gentoo is a free open source Linux or FreeBSD-based distribution built using the Portage package management system that makes it more flexible, easier to maintain, and portable compared to other operating systems. In a security alert released on its website yesterday, developers of the Gentoo Linux distribution warned users not to use code from its GitHub account, as some "unknown individuals" had gained its control on 28 June at 20:20 UTC and "modified the content of repositories as well as pages there." According to Gentoo developer Francisco Blas Izquierdo Riera, after gaining control of the Gentoo Github organization, the attackers "repla...