CVE-2024-28197

Summary

CVE-2024-28197 affects Zitadel, an open-source identity management system. The vulnerability arises due to a cookie, `__Secure-zitadel-useragent`, being accessible on subdomains of Zitadel instances. This cookie is used to identify user agents and sessions. An attacker could exploit this by providing a malicious link on a subdomain leading to account takeover in specific scenarios. Only sessions initiated through the malicious link would be at risk, and the attack requires an initial vulnerability on the subdomain, such as DNS control or a XSS vulnerability. Zitadel advises upgrading to the latest versions (2.46.0, 2.45.1, and 2.44.3) to address the issue. Self-hosted environments unable to upgrade can prevent setting the cookie name `__Secure-zitadel-useragent` on their subdomains. Upgrading will invalidate existing cookies, necessitating a new session for users.

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