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A team of cybersecurity researchers has discovered a clever technique to remotely inject inaudible and invisible commands into voice-controlled devices — all just by shining a laser at the targeted device instead of using spoken words. Dubbed ' Light Commands ,' the hack relies on a vulnerability in MEMS microphones embedded in widely-used popular voice-controllable systems that unintentionally respond to light as if it were sound. According to experiments done by a team of researchers from Japanese and Michigan Universities, a remote attacker standing at a distance of several meters away from a device can covertly trigger the attack by simply modulating the amplitude of laser light to produce an acoustic pressure wave. "By modulating an electrical signal in the intensity of a light beam, attackers can trick microphones into producing electrical signals as if they are receiving genuine audio," the researchers said in their paper [ PDF ]. Doesn't this so...

Everis , one of the largest IT consulting companies in Spain, suffered a targeted ransomware attack on Monday, forcing the company to shut down all its computer systems until the issue gets resolved completely. Ransomware is a computer virus that encrypts files on an infected system until a ransom is paid. According to several local media, Everis informed its employees about the devastating widespread ransomware attack, saying: "We are suffering a massive virus attack on the Everis network. Please keep the PCs off. The network has been disconnected with clients and between offices. We will keep you updated." "Please, urgently transfer the message directly to your teams and colleagues due to standard communication problems." According to cybersecurity consultant  Arnau Estebanell Castellví , the malware encrypted files on Everis's computers with an extension name resembling the company's name, i.e., " .3v3r1s ," which suggests the at...

If you're using the popular rConfig network configuration management utility to protect and manage your network devices, here we have an important and urgent warning for you. A cybersecurity researcher has recently published details and proof-of-concept exploits for two unpatched, critical remote code execution vulnerabilities in the rConfig utility, at least one of which could allow unauthenticated remote attackers to compromise targeted servers, and connected network devices. Written in native PHP, rConfig is a free, open source network device configuration management utility that allows network engineers to configure and take frequent configuration snapshots of their network devices. According to the project website, rConfig is being used to manage more than 3.3 million network devices, including switches, routers, firewalls, load-balancer, WAN optimizers. What's more worrisome? Both vulnerabilities affect all versions of rConfig, including the latest rConfig ver...

Cybersecurity researchers have spotted a new cyberattack that is believed to be the very first but an amateur attempt to weaponize the infamous BlueKeep RDP vulnerability in the wild to mass compromise vulnerable systems for cryptocurrency mining. In May this year, Microsoft released a patch for a highly-critical remote code execution flaw, dubbed  BlueKeep , in its Windows Remote Desktop Services that could be exploited remotely to take full control over vulnerable systems just by sending specially crafted requests over RDP. BlueKeep, tracked as CVE-2019-0708 , is a wormable vulnerability because it can be weaponized by potential malware to propagate itself from one vulnerable computer to another automatically without requiring victims' interaction. BlueKeep has been considered to be such a serious threat that since its discovery, Microsoft and even government agencies [ NSA and GCHQ ] had continuously been encouraging Windows users and admins to apply security p...

Attention readers, if you are using Chrome on your Windows, Mac, and Linux computers, you need to update your web browsing software immediately to the latest version Google released earlier today. With the release of Chrome 78.0.3904.87, Google is warning billions of users to install an urgent software update immediately to patch two high severity vulnerabilities, one of which attackers are actively exploiting in the wild to hijack computers. Without revealing technical details of the vulnerability, the Chrome security team only says that both issues are use-after-free vulnerabilities, one affecting Chrome's audio component ( CVE-2019-13720 ) while the other resides in the PDFium ( CVE-2019-13721 ) library. The use-after-free vulnerability is a class of memory corruption issues that allows corruption or modification of data in the memory, enabling an unprivileged user to escalate privileges on an affected system or software. Thus, both flaws could enable remote attackers...