# Summary
An arbitrary file write vulnerability could lead to direct control of the server
# Details
## Arbitrary file creation
In the api/v1/file.go file, there is a function called SaveContentthat,It recieves JSON data sent by users in the form of a POST request. And the lack of parameter filtering allows for arbitrary file write operations.It looks like this:
– Vulnerable Code
# PoC
– We can write the SSH public key into the /etc/.root/authorized_keys configuration file on the server.
– The server was successfully written to the public key
– Successfully connected to the target server using an SSH private key.
As a result, the server is directly controlled, causing serious **harm**
# Impact
1Panel v1.4.3Read More