Mass Internet Scanning from ASN 43350
Our undergraduate intern Duncan Woosley wrote up aggressive scans from ASN 43350
https://isc.sans.edu/diary/Mass+Internet+Scanning+from+ASN+43350+Guest+Diary/32180/#comments
HTTP/1.1 Desync Attacks
Portswigger released details about new types of HTTP/1.1 desync attacks it uncovered. These attacks are particularly critical for organizations using middleboxes to translate from HTTP/2 to HTTP/1.1
https://portswigger.net/research/http1-must-die
Microsoft Warns of Exchange Server Vulnerability
An attacker with admin access to an Exchange Server in a hybrid configuration can use this vulnerability to gain full domain access. The issue is mitigated by an April hotfix, but was not noted in the release of the April Hotfix.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53786
Sonicwall Update
Sonicwall no longer believes that a new vulnerability was used in recent compromises
https://www.sonicwall.com/support/notices/gen-7-and-newer-sonicwall-firewalls-sslvpn-recent-threat-activity/250804095336430
SANS.edu Research: Wellington Rampazo, Shift Left the Awareness and Detection of Developers Using Vulnerable Open-Source Software Components
https://www.sans.edu/cyber-research/shift-left-awareness-detection-developers-using-vulnerable-open-source-software-components/
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