SANS Stormcast Monday Mar 17th 2025: Analyzing GUID Encoded Shellcode; Node.js SAML Vuln; Tomcat RCE in the Wild; CSS e-mail obfuscation

Static Analysis of GUID Encoded Shellcode Didier explains how to decode shell code embeded as GUIDs in malware, and how to feed the result to his tool 1768.py which will extract Cobal Strike configuration information from the code.https://isc.sans.edu/diary/Static%20Analysis%20of%20GUID%20Encoded%20Shellcode/31774 SAMLStorm: Critical Authentication Bypass in xml-crypto and Node.js libraries xml-crypto, a library use in Node.js applications to decode XML and support SAML, has found to parse comments incorrectly leading to several SAML vulnerabilities.https://workos.com/blog/samlstorm One PUT Request to Own Tomcat: CVE-2025-24813 RCE is in the Wild A just made public deserialization vulnerablity in Tomcat is already being exploited. Contributing to the rapid exploit release is the similarity of this vulnerability to other Java deserializtion vulnerabilities. https://lab.wallarm.com/one-put-request-to-own-tomcat-cve-2025-24813-rce-is-in-the-wild/ CVE-2025-24813 CSS Abuse for Evasion and Tracking Attackers are using cascading stylesheets to evade detection and enable more stealthy tracking of usershttps://blog.talosintelligence.com/css-abuse-for-evasion-and-tracking/