The decentralized social network Mastodon has disclosed a critical security flaw that enables malicious actors to impersonate and take over any account.
“Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account,” the maintainers said in a terse advisory.
The vulnerability, tracked as CVE-2024-23832, has a severity rating of 9.4 out of a maximum of 10. Security researcher arcanicanis has been credited with discovering and reporting it.
The federated nature of the platform means that it runs on separate servers (aka instances), independently hosted and operated by respective administrators who create their own rules and regulations that are enforced locally.
This also means that not only each instance has a unique code of conduct, terms of service, privacy policy, and content moderation guidelines, but it also requires each administrator to apply security updates in a timely fashion to secure the instances against potential risks.
The disclosure arrives nearly seven months after Mastodon addressed two other critical flaws (CVE-2023-36460 and 2023-36459) that could have been weaponized by adversaries to cause denial-of-service (DoS) or achieve remote code execution.
Source: https://thehackernews.com/
