CVE-2023-39966: 1Panel arbitrary file write vulnerability exists in the background

First published: Thu Aug 10 2023(Updated: )

# 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 v1.4.3

Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com

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• collector/github-advisory-latest
• alias/GHSA-hf7j-xj3w-87g4
• alias/CVE-2023-39966
• collector/github-advisory
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• collector/nvd-api
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• vendor/fit2cloud
• canonical/1panel
• version/1panel/1.4.3