CVE-2024-10924
Really Simple Security (Free, Pro, and Pro Multisite) 9.0.0 - 9.1.1.1 - Authentication Bypass
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 on Exploit-DB, 1 Metasploit module, 20 proofs of concept on GitHub, 1 Nuclei template
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: total
Summary
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).
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Public exploit on Exploit-DB
EDB-52207
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Really Simple Plugins Really Simple Security Pro multisite
From 9.0.0 · through 9.1.1.1
- rogierlankhorst Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)
From 9.0.0 · through 9.1.1.1
- Really Simple Plugins Really Simple Security Pro
From 9.0.0 · through 9.1.1.1
References 29
wordfence.com
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
- browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L277
- browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L278
- changeset/3188431/really-simple-ssl