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GHSA-h5gf-cmm8-cg7c
No affected components available
Summary
http://demo.casaos.io/v1/users/image?path=/var/lib/casaos/1/avatar.png
Originally it was to get the url of the user's avatar, but the path filtering was not strict, making it possible to get any file on the system.
Details
Construct paths to get any file.
Such as the CasaOS user database, and furthermore can obtain system root privileges.
PoC
http://demo.casaos.io/v1/users/image?path=/var/lib/casaos/conf/../db/user.db
Impact
v0.4.6 all previous versions
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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