Nation-State Actors Weaponize Ivanti VPN Zero-Days, Deploying 5 Malware Families

As many as five different malware families were deployed by suspected nation-state actors as part of post-exploitation activities leveraging two zero-day vulnerabilities in Ivanti Connect Secure ICS VPN appliances since early December 2023. "These families allow the threat actors to circumvent...

Chinese Hacking Group Exploits Barracuda Zero-Day to Target Government, Military, and Telecom

A suspected Chinese-nexus hacking group exploited a recently disclosed zero-day flaw in Barracuda Networks Email Security Gateway ESG appliances to breach government, military, defense and aerospace, high-tech industry, and telecom sectors as part of a global espionage campaign. Mandiant, which i...

Critical 'nOAuth' Flaw in Microsoft Azure AD Enabled Complete Account Takeover

A security shortcoming in Microsoft Azure Active Directory AD Open Authorization OAuth process could have been exploited to achieve full account takeover, researchers said. California-based identity and access management service Descope, which discovered and reported the issue in April 2023, dubb...

What Old is New Again and What's Old is Me?

Welcome to this weeks edition of the Threat Source newsletter. Whats old is new again and whats old is still old. The fact that we are seeing a comeback of this USB thumb drive nonsense is giving me heartburn, and a headache, and my left eye is twitching … and maybe numbness in my legs? Yes, I am...

APT Actors Exploiting Newly Identified Vulnerability in ManageEngine ADSelfService Plus

Summary This Joint Cybersecurity Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® framework, Version 8. See the ATT&CK for Enterprise for referenced threat actor tactics and for techniques. This joint advisory is the result of analytic efforts between the...