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Tag: OAuth

OAuth Device Code Phishing: A New Microsoft 365 Account Breach Vector

ANY.RUN’s analysts are observing a sharp increase in phishing activity abusing Microsoft’s OAuth Device Code flow, with more than 180 phishing URLs detected in just one week. This technique represents a shift from credential phishing to token-based account takeover, making detection significantly harder for many SOC teams.  Key Takeaways  OAuth Device Code phishing is rising rapidly. Campaigns abusing Microsoft’s Device…

OAuth vulnerability in n8n automation platform could lead to system compromise

A weakness in the configuration of OAuth credentials opens up a stored XSS vulnerability in the n8n automation platform, researchers at Imperva have discovered. Setting up OAuth allows n8n to connect to services such as Google Workspace, Microsoft 365, Slack, or GitHub without having to expose service passwords. This is core to automation platforms like…

Threat actors weaponize OAuth redirection logic to deliver malware

An ongoing phishing campaign is abusing the OAuth authentication redirection mechanism to avoid triggering conventional email and browser defenses, Microsoft researchers have revealed. The attackers are targeting government and public-sector organizations, and redirecting unsuspecting users from trusted login pages to their own infrastructure, to serve malware or capture login credentials. The attack, from the victim’s…

OAuth phishers make ‘check where the link points’ advice ineffective

Microsoft has warned that phishers are exploiting a built-in behavior of the OAuth authentication protocol to redirect victims to malware, using links that point to legitimate identity provider domains such as Microsoft Entra ID and Google Workspace. The links look safe but ultimately lead somewhere that isn’t. “OAuth includes a legitimate feature that allows identity…

OAuth phishers make ‘check where the link points’ advice ineffective

Microsoft has warned that phishers are exploiting a built-in behavior of the OAuth authentication protocol to redirect victims to malware, using links that point to legitimate identity provider domains such as Microsoft Entra ID and Google Workspace. The links look safe but ultimately lead somewhere that isn’t. “OAuth includes a legitimate feature that allows identity…

Phishing campaign exploits OAuth redirection to bypass defenses

Microsoft researchers warn that threat actors abuse OAuth redirects to target government users and deliver malware. Microsoft has warned of phishing campaigns targeting government and public-sector organizations by abusing OAuth URL redirection. Instead of stealing credentials or exploiting software flaws, attackers leverage OAuth’s legitimate by-design behavior to bypass email and browser defenses. The tactic redirects…

Microsoft Warns OAuth Redirect Abuse Delivers Malware to Government Targets

Microsoft on Monday warned of phishing campaigns that employ phishing emails and OAuth URL redirection mechanisms to bypass conventional phishing defenses implemented in email and browsers. The activity, the company said, targets government and public-sector organizations with the end goal of redirecting victims to attacker-controlled infrastructure without stealing their tokens. It described

New phishing campaign tricks employees into bypassing Microsoft 365 MFA

Another device code phishing campaign that abuses OAuth device registration to bypass multifactor authentication login protections has been discovered. Researchers at KnowBe4 say the campaign is largely targeting North American businesses and professionals by tricking unwitting employees into clicking a link in an email from a threat actor. The message purports to be about a…

New phishing campaign tricks employees into bypassing Microsoft 365 MFA

Another device code phishing campaign that abuses OAuth device registration to bypass multifactor authentication login protections has been discovered. Researchers at KnowBe4 say the campaign is largely targeting North American businesses and professionals by tricking unwitting employees into clicking a link in an email from a threat actor. The message purports to be about a…