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1Panel arbitrary file write vulnerability

High severity GitHub Reviewed Published Aug 10, 2023 in 1Panel-dev/1Panel • Updated Nov 12, 2023

Package

gomod github.com/1Panel-dev/1Panel (Go)

Affected versions

= 1.4.3

Patched versions

1.5.0

Description

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

微信图片_20230801092544

PoC

  • We can write the SSH public key into the /etc/.root/authorized_keys configuration file on the server.

微信图片_20230801093243

  • The server was successfully written to the public key
    微信图片_20230801093610

  • Successfully connected to the target server using an SSH private key.
    微信图片_20230801093933
    微信图片_20230801094037

As a result, the server is directly controlled, causing serious harm

Impact

1Panel v1.4.3

References

@wanghe-fit2cloud wanghe-fit2cloud published to 1Panel-dev/1Panel Aug 10, 2023
Published by the National Vulnerability Database Aug 10, 2023
Published to the GitHub Advisory Database Aug 10, 2023
Reviewed Aug 10, 2023
Last updated Nov 12, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.265%
(65th percentile)

Weaknesses

CVE ID

CVE-2023-39966

GHSA ID

GHSA-hf7j-xj3w-87g4

Source code

Credits

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