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CasaOS-UserService allows unauthorized access to any file

High severity GitHub Reviewed Published Mar 6, 2024 in IceWhaleTech/CasaOS-UserService • Updated Mar 12, 2024

Package

gomod github.com/IceWhaleTech/CasaOS-UserService (Go)

Affected versions

< 0.4.7

Patched versions

0.4.7

Description

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

References

@tigerinus tigerinus published to IceWhaleTech/CasaOS-UserService Mar 6, 2024
Published to the GitHub Advisory Database Mar 6, 2024
Reviewed Mar 6, 2024
Published by the National Vulnerability Database Mar 6, 2024
Last updated Mar 12, 2024

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

CVE ID

CVE-2024-24765

GHSA ID

GHSA-h5gf-cmm8-cg7c

Source code

Credits

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