CVE-2021-32630: Various
Admidio is a free, open source user management system for websites of organizations and groups. In Admidio before version 4.0.4, there is an authenticated RCE via .phar file upload. A php web shell can be uploaded via the Documents & Files upload feature. Someone with upload permissions could rename the php shell with a .phar extension, visit the file, triggering the payload for a reverse/bind shell. This can be mitigated by excluding a .phar file extension to be uploaded (like you did with .php .phtml .php5 etc). The vulnerability is patched in version 4.0.4.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-32630?
CVE-2021-32630 is a vulnerability in Admidio, an open source user management system, that allows for authenticated remote code execution (RCE) through the upload of a .phar file.
How severe is CVE-2021-32630?
CVE-2021-32630 has a severity rating of 8.8 (Critical).
How does CVE-2021-32630 work?
CVE-2021-32630 allows an attacker with upload permissions to upload a PHP web shell through the Documents & Files upload feature, leading to potential remote code execution.
Which versions of Admidio are affected by CVE-2021-32630?
Admidio versions up to (but not including) 4.0.4 are affected by CVE-2021-32630.
How can CVE-2021-32630 be fixed?
To fix CVE-2021-32630, users should update to Admidio version 4.0.4 or later, which includes a fix for the vulnerability.