Podcast Detail

SANS Stormcast Friday, March 27th, 2026: TeamPCP Update; DarkSword vs Patches; LangFlow Exploited

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TeamPCP Update; DarkSword vs Patches; LangFlow Exploited

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TeamPCP Supply Chain Campaign: Update 001 - Checkmarx Scope Wider Than Reported, CISA KEV Entry, and Detection Tools Available
https://isc.sans.edu/diary/TeamPCP%20Supply%20Chain%20Campaign%3A%20Update%20001%20-%20Checkmarx%20Scope%20Wider%20Than%20Reported%2C%20CISA%20KEV%20Entry%2C%20and%20Detection%20Tools%20Available/32834

DarkSword and This Weeks iOS Updates
https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain

LangFlow Exploited
https://www.cisa.gov/news-events/alerts/2026/03/25/cisa-adds-one-known-exploited-vulnerability-catalog

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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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