CVE-2021-42669 File upload in n/a
Attackers can upload malicious PHP files via the avatar feature to execute arbitrary commands on the web server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42669?
CVE-2021-42669 is a critical vulnerability in n/a, published on 5 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing "<?php system($_GET["cmd"]); ?>" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.
Weakness: CWE-434
Which versions are affected by CVE-2021-42669?
It affects 1 product.
Products include Engineers Online Portal Project Engineers Online Portal.
How do I fix CVE-2021-42669?
No fix has been published for CVE-2021-42669 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42669 being exploited?
There is no known exploitation of CVE-2021-42669 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-h6f4-pv83-7533.