The Hacker News | #1 Trusted Source for Cybersecurity News — Index Page

Joe Vennix of Apple security has found another significant vulnerability in sudo utility that under a specific configuration could allow low privileged users or malicious programs to execute arbitrary commands with administrative ('root') privileges on Linux or macOS systems. Sudo is one of the most important, powerful, and commonly used utilities that comes as a core command pre-installed on macOS and almost every UNIX or Linux-based operating system. Sudo has been designed to let users run apps or commands with the privileges of a different user without switching environments. Sudo Vulnerability (CVE-2019-18634) The newly discovered privilege escalation vulnerability, tracked as CVE-2019-18634 , in question stems from a stack-based buffer overflow issue that resides in Sudo versions before 1.8.26. According to Vennix, the flaw can only be exploited when the " pwfeedback " option is enabled in the sudoers configuration file, a feature that provides visua...

Remember the recent payment card breach at Wawa convenience stores ? If you're among those millions of customers who shopped at any of 850 Wawa stores last year but haven't yet hotlisted your cards, it's high time to take immediate action. That's because hackers have finally put up payment card details of more than 30 million Wawa breach victims on sale at Joker's Stash, one of the largest dark web marketplaces where cybercriminals buy and sell stolen payment card data. As The Hacker News reported last month, on 10th December Wawa learned that its point-of-sale servers had malware installed since March 2019, which stole payment details of its customers from potentially all Wawa locations. At that time, the company said it's not aware of how many customers may have been affected in the nine-month-long breach or of any unauthorized use of payment card information as a result of the incident. Now it turns out that the Wawa breach marked itself in the ...

Cybersecurity researchers at Check Point today disclosed details of two recently patched potentially dangerous vulnerabilities in Microsoft Azure services that, if exploited, could have allowed hackers to target several businesses that run their web and mobile apps on Azure. Azure App Service is a fully-managed integrated service that enables users to create web and mobile apps for any platform or device, and easily integrate them with SaaS solutions, on-premises apps to automate business processes. According to a report researchers shared with The Hacker News, the first security vulnerability ( CVE-2019-1234 ) is a request spoofing issue that affected Azure Stack, a hybrid cloud computing software solution by Microsoft. If exploited, the issue would have enabled a remote hacker to unauthorizedly access screenshots and sensitive information of any virtual machine running on Azure infrastructure—it doesn't matter if they're running on a shared, dedicated or isolated vir...

Cybersecurity researchers have discovered a new critical vulnerability ( CVE-2020-7247 ) in the OpenSMTPD email server that could allow remote attackers to take complete control over BSD and many Linux based servers. OpenSMTPD is an open-source implementation of the server-side SMTP protocol that was initially developed as part of the OpenBSD project but now comes pre-installed on many UNIX-based systems. According to Qualys Research Labs, who discovered this vulnerability, the issue resides in the OpenSMTPD's sender address validation function, called smtp_mailaddr(), which can be exploited to execute arbitrary shell commands with elevated root privileges on a vulnerable server just by sending specially crafted SMTP messages to it. The flaw affects OpenBSD version 6.6 and works against the default configuration for both, the locally enabled interface as well as remotely if the daemon has been enabled to listen on all interfaces and accepts external mail. "Exploit...

Facebook is one of the world's biggest advertising platforms, and that's because it knows a lot about you, me, and everyone. Facebook uses many tools to track people across the Internet, whether they have an account with the social networking site or not, and most of them rely on the online activity data other apps and websites share with Facebook. Everything we do online generates an extensive amount of behavioral data, from buying clothes to looking for hotels, which apps and websites often share with advertising companies, allowing them to build more accurate profiles of your interests and needs. However, after facing worldwide criticism over privacy and data breach controversies, Facebook last summer announced a privacy tool, called Off-Facebook Activity , which gives users more control of their data collected by Facebook. Starting today on Data Privacy Day 2020 , the Off-Facebook Activity feature is now available to every user around the world, which was initiall...