CVE-2024-10924
Published: 15 November 2024
Summary
CVE-2024-10924 is a critical-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Really-Simple-Plugins Really Simple Security. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The Really Simple Security plugin for WordPress, including its Free, Pro, and Pro Multisite editions, is affected by an authentication bypass vulnerability in versions 9.0.0 through 9.1.1.1. The flaw stems from improper error handling in the check_login_and_get_user function used by the two-factor REST API endpoints, allowing the bypass when the optional Two-Factor Authentication feature is enabled.
Unauthenticated attackers can exploit the issue over the network to log in as any existing user account on the site, including administrators, without valid credentials. The vulnerability carries a CVSS score of 9.8 and maps to CWE-288 and CWE-306.
The referenced plugin changeset and Wordfence advisory indicate that the issue was addressed by updating the affected REST API logic; site owners should upgrade to a version beyond 9.1.1.1. The EPSS score remains high at approximately 0.94 with no documented real-world exploitation activity.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-33353
Vulnerability details
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'…
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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).
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Mandates additional authentication for access under defined conditions, ensuring critical or high-risk functions are not left without authentication.
Identity providers mandate authentication for functions that would otherwise lack it.
Requires authentication for non-organizational users, preventing access to critical functions without proper identification and authentication.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing remote access reduces the ability to bypass authentication via unauthorized alternate remote channels.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.