ConsentFix: OAuth-based Microsoft 365 account hijacking
🛡️Researchers uncovered a new ClickFix variant called ConsentFix that tricks users into granting OAuth tokens, enabling attackers to access Microsoft 365 accounts without stealing passwords. Attackers use deceptive pages and social engineering—often via phishing emails imitating file-sharing services—to induce victims to drag a tokenized URL onto an attacker-controlled page. Once obtained, the OAuth token can expose Outlook, Teams, OneDrive, SharePoint and other services depending on the organization’s license and privileges, enabling data exfiltration, BEC and lateral movement. The technique is widely shared on cybercrime forums with tutorials and turnkey tools, increasing its prevalence and lowering the barrier for novice threat actors.
