SANS Stormcast Friday, May 23rd 2025: Backup Connectivity; Windows 2025 dMSA Abuse; Samlify Vulnerability (#)

SANS Stormcast Friday, May 23rd 2025: Backup Connectivity; Windows 2025 dMSA Abuse; Samlify Vulnerability Resilient Secure Backup Connectivity for SMB/Home Users Establishing resilient access to a home network via a second ISP may lead to unintended backdoors. Secure the access and make sure you have the visibility needed to detect abuse. https://isc.sans.edu/diary/Resilient%20Secure%20Backup%20Connectivity%20for%20SMB%20Home%20Users/31972 BadSuccessor: Abusing dMSA to Escalate Privileges in Active Directory An attacker with the ability to create service accounts may be able to manipulate these accounts to mark them as migrated accounts, inheriting all privileges the original account had access to. https://www.akamai.com/blog/security-research/abusing-dmsa-for-privilege-escalation-in-active-directory Flaw in samlify That Opens Door to SAML Single Sign-On Bypass CVE-2025-47949 The samlify Node.js library does not verify SAML assertions correctly. It will consider the entire assertion valid, not just the original one. An attacker may use this to obtain additional privileges or authenticate as a different user https://www.endorlabs.com/learn/cve-2025-47949-reveals-flaw-in-samlify-that-opens-door-to-saml-single-sign-on-bypass keywords: pgp; openpgp; npm; javascript; dns; cname; researchers