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A team of cybersecurity researchers yesterday revealed details of a new side-channel attack on dynamic random-access memory (DRAM) that could allow malicious programs installed on a modern system to read sensitive memory data from other processes running on the same hardware. Dubbed RAMBleed and identified as CVE-2019-0174 , the new attack is based on a well-known class of DRAM side channel attack called Rowhammer , various variants [ GLitch , RAMpage , Throwhammer ,  Nethammer , Drammer ] of which have been demonstrated by researchers in recent years. Known since 2012, Rowhammer bug is a hardware reliability issue that was found in the new generation of DRAM chips. It turned out that repeatedly and rapidly accessing (hammering) a row of memory can cause bit flips in adjacent rows, i.e., changing their bit values from 0 to 1 or vice-versa. In the following years, researchers also demonstrated successful exploits to achieve privilege escalation on the vulnerable computers by

After Adobe , the technology giant Microsoft today—on June 2019 Patch Tuesday—also released its monthly batch of software security updates for various supported versions of Windows operating systems and other Microsoft products. This month's security updates include patches for a total of 88 vulnerabilities, 21 are rated Critical, 66 are Important, and one is rated Moderate in severity. The June 2019 updates include patches Windows OS, Internet Explorer, Microsoft Edge browser, Microsoft Office and Services, ChakraCore, Skype for Business, Microsoft Lync, Microsoft Exchange Server, and Azure. Four of the security vulnerabilities, all rated important and could allow attackers to escalate privileges, patched by the tech giant this month were disclosed publicly, of which none were found exploited in the wild. Unpatched Issue Reported by Google Researcher However, Microsoft failed to patch a minor flaw in SymCrypt , a core cryptographic function library currently used by

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It's Patch Tuesday week! Adobe has just released the latest June 2019 software updates to address a total 11 security vulnerabilities in its three widely-used products Adobe ColdFusion, Flash Player, and Adobe Campaign. Out of these, three vulnerabilities affect Adobe ColdFusion, a commercial rapid web application development platform—all critical in severity—that could lead to arbitrary code execution attacks. Here below you can find brief information about all newly patched ColdFusion flaws : CVE-2019-7838 — This vulnerability has been categorized as "File extension blacklist bypass" and can be exploited if the file uploads directory is web accessible. CVE-2019-7839 — There's a command injection vulnerability in ColdFusion 2016 and 2018 editions, but it does not impact ColdFusion version 11. CVE-2019-7840 — This flaw originates from the deserialization of untrusted data and also leads to arbitrary code execution on the system. Besides ColdFusion

Security researchers have been warning about a critical vulnerability they discovered in one of a popular WordPress Live Chat plugin, which, if exploited, could allow unauthorized remote attackers to steal chat logs or manipulate chat sessions. The vulnerability, identified as CVE-2019-12498, resides in the "WP Live Chat Support" that is currently being used by over 50,000 businesses to provide customer support and chat with visitors through their websites. Discovered by cybersecurity researchers at Alert Logic , the flaw originates because of an improper validation check for authentication that apparently could allow unauthenticated users to access restricted REST API endpoints. As described by researchers, a potential remote attacker can exploit exposed endpoints for malicious purposes, including: stealing the entire chat history for all chat sessions, modifying or deleting the chat history, injecting messages into an active chat session, posing as a custome

Linux users, beware! If you haven't recently updated your Linux operating system, especially the command-line text editor utility, do not even try to view the content of a file using Vim or Neovim. Security researcher Armin Razmjou recently discovered a high-severity arbitrary OS command execution vulnerability (CVE-2019-12735) in Vim and Neovim —two most popular and powerful command-line text editing applications that come pre-installed with most Linux-based operating systems. On Linux systems, Vim editor allows users to create, view or edit any file, including text, programming scripts, and documents. Since Neovim is just an extended forked version of Vim, with better user experience, plugins and GUIs, the code execution vulnerability also resides in it. Code Execution Flaw in Vim and Neovim Razmjou discovered a flaw in the way Vim editor handles "modelines," a feature that's enabled-by-default to automatically find and apply a set of custom pref

An anonymous security researcher going by the name of SandboxEscaper today publicly shared a second zero-day exploit that can be used to bypass a recently patched elevation of privilege vulnerability in the Microsoft Windows operating system. SandboxEscaper is known for publicly dropping zero-day exploits for unpatched Windows vulnerabilities. In the past year, the hacker has disclosed over half a dozen zero-day vulnerabilities in Windows OS without actually bothering to make Microsoft aware of the issues first. Just two weeks ago, the hacker disclosed four new Windows exploits , one of which was an exploit that could allow attackers to bypass a patched elevation of privilege vulnerability (CVE-2019-0841) in Windows that existed when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. Now, the hacker claims to have found a new way to bypass Microsoft security patch for the same vulnerability, allowing a specially crafted malicious application to escalate its

Security researchers have discovered an ongoing sophisticated botnet campaign that is currently brute-forcing more than 1.5 million publicly accessible Windows RDP servers on the Internet. Dubbed GoldBrute , the botnet scheme has been designed in a way to escalate gradually by adding every new cracked system to its network, forcing them to further find new available RDP servers and then brute force them. To fly under the radar of security tools and malware analysts, attackers behind this campaign command each infected machine to target millions of servers with a unique set of username and password combination so that a targeted server receives brute force attempts from different IP addresses. The campaign, discovered  by Renato Marinho at Morphus Labs, works as shown in the illustrated image, and its modus operandi has been explained in the following steps: Step 1 — After successfully brute-forcing an RDP server, the attacker installs a JAVA-based GoldBrute botnet malware