Handler on Duty: Xavier Mertens
Threat Level: green
Podcast Detail
SANS Stormcast Monday Mar 17th 2025: Analyzing GUID Encoded Shellcode; Node.js SAML Vuln; Tomcat RCE in the Wild; CSS e-mail obfuscation
If you are not able to play the podcast using the player below: Use this direct link to the audio file: https://traffic.libsyn.com/securitypodcast/9368.mp3

Analyzing GUID Encoded Shellcode; Node.js SAML Vuln; Tomcat RCE in the Wild; CSS e-mail obfuscation
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Application Security: Securing Web Apps, APIs, and Microservices | Orlando | Apr 13th - Apr 18th 2025 |
Application Security: Securing Web Apps, APIs, and Microservices | San Diego | May 5th - May 10th 2025 |
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 users
https://blog.talosintelligence.com/css-abuse-for-evasion-and-tracking/
Application Security: Securing Web Apps, APIs, and Microservices | Orlando | Apr 13th - Apr 18th 2025 |
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