Description
The Really Simple Security (Free, Pro, and Pro Multisite) plugins for WordPress are vulnerable to authentication bypass in versions 9.0.0 to 9.1.1.1. This is due to improper user check error handling in the two-factor REST API actions with the 'check_login_and_get_user' function. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, when the "Two-Factor Authentication" setting is enabled (disabled by default).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Really Simple Plugins Really Simple Security Pro multisite
Default version status: unaffected
9.0.0 to ≤ 9.1.1.1affected
rogierlankhorst Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)
Default version status: unaffected
9.0.0 to ≤ 9.1.1.1affected
Really Simple Plugins Really Simple Security Pro
Default version status: unaffected
9.0.0 to ≤ 9.1.1.1affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=cve ↗
- https://plugins.trac.wordpress.org/browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L67 ↗
- https://plugins.trac.wordpress.org/browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L277 ↗
- https://plugins.trac.wordpress.org/browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L278 ↗
- https://plugins.trac.wordpress.org/changeset/3188431/really-simple-ssl ↗
- https://www.wordfence.com/blog/2024/11/really-simple-security-vulnerability/ ↗
- https://github.com/JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-10924 ↗