Security News

Trend Micro on Thursday disclosed the details of a recently patched privilege escalation vulnerability that has been found to impact macOS, iOS and iPadOS. The flaw, tracked as CVE-2021-30724, was discovered by Trend Micro researcher Mickey Jin, and it was patched by Apple on May 24 with the release of macOS 11.4, iOS 14.6 and iPadOS 14.6. The vulnerability, caused by an out-of-bounds memory access issue, can allow a local attacker to elevate privileges by sending specially crafted requests.

A researcher has released a proof-of-concept exploit for CVE-2021-31166, a use-after-free, highly critical vulnerability in the HTTP protocol stack that could lead to wormable remote code execution. An exploit would allow RCE with kernel privileges or a denial-of-service attack.

A researcher has released a proof-of-concept exploit for a recently patched Windows vulnerability that could allow remote code execution and which has been described by Microsoft as wormable. The vulnerability affects the HTTP Protocol Stack and exploitation does not require authentication or user interaction.

Apple fixes four zero-days under attackA week after Apple patched a macOS zero-day exploited by Shlayer malware for months for months, the company has released new security updates for macOS, iOS, iPadOS and watch OS that plug four additional zero-days that "May have been actively exploited". Users increasingly putting password security best practices into playWhile there is awareness of password security best practices, there is still work to be done to put that awareness to full use, a Bitwarden survey reveals.

In the wake of the Microsoft Exchange ProxyLogon zero-day and F5 BIG-IP security exploits earlier this year, many are questioning if and when should researchers publish proof of concepts for vulnerabilities and associated patches. While publishing PoC exploits for patched vulnerabilities is common practice, this one came with an increased risk of threat actors using them to attack the thousands of servers not yet protected.

Technical documentation and proof-of-concept exploit code is available for a high-severity vulnerability in Microsoft Exchange Server that could let remote attackers execute code on unpatched machines. A technical write-up is available since April 26 from security researcher Nguyen Jang, who released in the past a short-lived PoC exploit for ProxyLogon vulnerabilities.

A researcher has made public a proof-of-concept exploit for a recently discovered vulnerability affecting Chrome, Edge and other Chromium-based web browsers. On April 7, at the Pwn2Own 2021 hacking competition, Bruno Keith and Niklas Baumstark of Dataflow Security earned $100,000 for a remote code execution exploit that works against web browsers that are based on Google's open source Chromium project.

Almost 10 days after application security company F5 Networks released patches for critical vulnerabilities in its BIG-IP and BIG-IQ products, adversaries have begun opportunistically mass scanning and targeting exposed and unpatched networking devices to break into enterprise networks. News of in the wild exploitation comes on the heels of a proof-of-concept exploit code that surfaced online earlier this week by reverse-engineering the Java software patch in BIG-IP. The mass scans are said to have spiked since March 18.

Google has released proof-of-concept exploit code, which leverages the Spectre attack against the Chrome browser to leak data from websites. Three years after the Spectre attack was first disclosed, researchers with Google have now released a demonstration website that leverages the attack, written in JavaScript, to leak data at a speed of 1 kilobyte per second when running on Chrome 88 on an Intel Skylake CPU. The researchers said they hope the PoC will light a fire under web application developers to take active steps to protect their sites.

Microsoft Exchange servers around the world are still getting compromised via the ProxyLogon and three other vulnerabilities patched by Microsoft in early March. A. Human operated ransomware attacks are utilizing the Microsoft Exchange vulnerabilities to exploit customers.