A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
SANS Stormcast Friday, May 16th: Increase in Sonicwall Scans; RVTools Compromised?; RountPress
May 15, 2025
6:26
5.41 MB
Downloads: 0
Web Scanning SonicWall for CVE-2021-20016 - Update
Scans for SonicWall increased by an order of magnitude over the last couple of weeks. Many of the attacks appear to originate from Global Host , a low-cost virtual hosting provider.
https://isc.sans.edu/diary/Web%20Scanning%20SonicWall%20for%20CVE-2021-20016%20-%20Update/31952
Google Update Patches Exploited Chrome Flaw
Google released an update for Chrome. The update fixes two specific flaws reported by external researchers, CVE-2025-4664 and CVE-2025-4609. The first flaw is already being exploited in the wild.
https://chromereleases.googleblog.com/2025/05/stable-channel-update-for-desktop_14.html
https://x.com/slonser_/status/1919439373986107814
RVTools Bumblebee Malware Attack
Zerodaylabs published its analysis of the RV-Tools Backdoor attack. It suggests that this may not be solely a search engine optimization campaign directing victims to the malicious installer, but that the RVTools distribution site was compromised.
https://zerodaylabs.net/rvtools-bumblebee-malware/
Operation RoundPress
ESET Security wrote up a report summarizing recent XSS attacks against open-source webmail systems
https://www.welivesecurity.com/en/eset-research/operation-roundpress/