Podcast Detail

SANS Stormcast Monday, September 8th, 2025: YARA to Debugger Offsets; SVG JavaScript Phishing; FreePBX Patches;

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/9602.mp3

YARA to Debugger Offsets; SVG JavaScript Phishing; FreePBX Patches;

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From YARA Offsets to Virtual Addresses
Xavier explains how to convert offsets reported by YARA into offsets suitable for the use with debuggers.
https://isc.sans.edu/diary/From%20YARA%20Offsets%20to%20Virtual%20Addresses/32262

Phishing via JavaScript in SVG Files
Virustotal uncovered a Colombian phishing campaign that takes advantage of JavaScript in SVG files.
https://blog.virustotal.com/2025/09/uncovering-colombian-malware-campaign.html

FreePBX Patches
FreePBX released details regarding two vulnerabilities patched last week. One of these vulnerabilities was already actively exploited.
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-3r47-p39v-vqqf

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Discussion

The Shibboleth vulnerability is quite interesting. In their example, the SAML signature covers the entire and they've made modifications to it (the changes to the uid) that should cause the signature to fail validation. This vulnerability speaks to larger architectural issues with Shibboleth. Obviously the signature validation is happening on a DIFFERENT document (the inline DTD defs are resolved and replaced) than the attribute extraction code works on (the inline DTD variables are not replaced). This is a HUGE no no and leads to the confused deputy issues that caused the vulnerability. I would bet other SP SAML parsing code is making similar mistakes.

Posted by Anonymous on Tue Jan 16 2018, 16:54

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