outlook
Microsoft 365 anti-phishing feature can be bypassed with CSS
Researchers have demonstrated a method to bypass an anti-phishing measure in Microsoft 365 (formerly Office 365), elevating the risk of users opening malicious emails. Specifically, the anti-phishing measure that can be hidden is the ‘First Contact Safety Tip,’ which warns email recipients on Outlook when they receive a message from an unfamiliar address. Certitude analysts who discovered […]
New Specula tool uses Outlook for remote code execution in Windows
Microsoft Outlook can be turned into a C2 beacon to remotely execute code, as demonstrated by a new red team post-exploitation framework named “Specula,” released today by cybersecurity firm TrustedSec. This C2 framework works by creating a custom Outlook Home Page using WebView by exploiting CVE-2017-11774, an Outlook security feature bypass vulnerability patched in October 2017. “In […]
Microsoft Outlook Faced Critical Zero-Click RCE Vulnerability
Security researchers have uncovered a critical vulnerability, CVE-2024-38021, affecting most Microsoft Outlook applications. This zero-click remote code execution (RCE) vulnerability, now patched by Microsoft, did not require any authentication, setting it apart from the previously discovered CVE-2024-30103, which required at least an NTLM token. If exploited, CVE-2024-38021 could lead to data breaches, unauthorized access and […]