A recent vulnerability tracked as Rapid Reset (CVE-2023-44487) in the HTTP/2 protocol was recently disclosed by researchers and vendors. It was exploited in the wild from August 2023 to October 2023. The issue arises from the HTTP/2 protocol's ability to cancel streams using an RST_STREAM frame, which can be misused to overload servers by initiating and quickly canceling numerous streams, circumventing the server's concurrent stream limit.
On October 11 a new version of curl (8.4.0) was released, where a couple of new vulnerabilities were fixed (CVE-2023-38545 with severity HIGH and CVE-2023-38546 with severity LOW). These issues were previously announced in the project’s discussion. At the time of this blog, there have been several proof of concepts released for CVE-2023-38545 which result in crashes, but not exploitation.
TL;DR This vulnerability appears to be less severe than initially anticipated. Cato customers and infrastructure are secure. Last week the original author and long-time lead developer of cURL Daniel Stenberg published a “teaser” for a HIGH severity vulnerability in the ubiquitous libcurl development library and the curl command-line utility. A week of anticipation, multiple heinous crimes against humanity and a declaration of war later, the vulnerability was disclosed publicly.
In the world of cybersecurity, zero-day vulnerabilities, zero-day attacks, and zero-day exploits keep many CISOs up at night. These terms, often shrouded in mystery and intrigue, denote a significant risk to digital systems and the sensitive data they hold. Understanding the intricacies of zero-day vulnerabilities and the exploits that leverage them is crucial for individuals, organizations, and governments seeking to fortify their defenses against cyber threats.
Critical zero-day Citrix CVE-2023-3519 is still being exploited two months after Citrix released a patch. IONIX research found that 19% of the CVE-2023-3519 vulnerabilities are still unmitigated in comparison to only 3% among IONIX customers. In addition, IONIX customers were able to resolve this critical risk three times faster.
Docker has revolutionized how developers work by offering a powerful platform for creating, shipping, and running container applications. It helps developers conquer the complexity of application development and significantly increases software shipping frequency. Despite setbacks in recent years, Docker brings home $50 million in revenue every year, driven by the ongoing demand for new applications.
