A significant security vulnerability has been identified in Google Groups, allowing users to circumvent file attachment restrictions by simply sending emails to group addresses. According to the technical report, even when group administrators explicitly restrict file upload permissions to “owners only,” regular members can bypass this restriction by sending an email with attachments to the group’s email address. For Google Workspace administrators, it emphasizes the importance of regularly reviewing group configurations and understanding the potential security implications of seemingly helpful features like email posting. Ph.Hitachi recently observed the vulnerability, which exploits a disconnect between two Google Groups features: attachment permissions and email posting capabilities. This broken access control issue potentially impacts thousands of organizations that rely on Google Groups for controlled information sharing and collaboration. This discovery highlights the ongoing challenges in maintaining consistent security controls across interconnected features in cloud-based collaboration platforms, even for industry leaders like Google. This vulnerability could have significant consequences for enterprises and organizations using Google Groups for sensitive communications. Cyber Security News is a Dedicated News Platform For Cyber News, Cyber Attack News, Hacking News & Vulnerability Analysis. Security experts recommend implementing comprehensive access controls and practicing proper data categorization to limit exposure to confidential information. This newly discovered bypass method further complicates security governance for Google Workspace administrators. According to recent research, over 9,600 organizations have already experienced data leaks due to misconfigured Google Groups settings.
This Cyber News was published on cybersecuritynews.com. Publication date: Tue, 15 Apr 2025 07:50:12 +0000