Qualys Research Alert: OpenSSL 3.0.7 – What You Need To Know

On Tuesday, November 1, 2022, the OpenSSL project released a new version of OpenSSL with version 3.0.7. This update patches two buffer overflow vulnerabilities which can be triggered in X.509 certificate verification. These vulnerabilities only apply to OpenSSL 3.x. Both these vulnerabilities are...

Simplifying Cloud Asset Identification in a Multi-Cloud Environment

Enterprises struggle to get an accurate asset inventory in multi-cloud or hybrid cloud environments. Qualys enhances the metadata for cloud assets while simplifying the collection process. This blog explains how this functionality expedites the identification process, easily identifies vulnerable...

Log4Shell Exploit Detection and Response with Qualys Multi-Vector EDR

Author: Hiep Dang & Malware Threat Research Team On Dec 9, 2021, the world first learned about the Log4Shell vulnerability aka Log4J CVE-2021-44228 found in the Log4j2 library commonly used by Java applications. Since then, everyone in the cybersecurity industry has been scrambling to understand...

GSA Bounty: Cache poisoning DoS to various TTS assets

I have recently come across a technique to force a Cloudfoundry app to return a HTTP 404 error when requesting any resource, which contains cache friendly headers. What this means is, if the Cloudfoundry app in question is behind a web cache like Cloudfront or Cloudflare etc, it will possibly sto...

Visualizing the Stack Clash Vulnerability with Dashboards

Security teams should apply vendor patches immediately to protect their Linux, OpenBSD, NetBSD, FreeBSD and Solaris infrastructure from The Stack Clash vulnerability also see the security advisory. To help in that effort, this blog post describes a new built-in Qualys AssetView dashboard to...

Senate's Use of Signal A Good First Step, Experts Say

On Tuesday the United States Senate made it official and approved the use of encrypted messaging app Signal by staffers. Encryption advocates applauded the measure, but say more needs to be done to protect “civic” infrastructure critical to democracy. “The move to secure communications...