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This repository has been archived by the owner on Oct 22, 2021. It is now read-only.

Cross-site websocket hijacking enables remote command execution (RCE)

High
GitSquared published GHSA-q8xc-f2wf-ffh9 Apr 28, 2023

Package

edex-ui

Affected versions

<= v2.2.8

Patched versions

None

Description

Impact

When running eDEX-UI and browsing the web, a malicious website can connect to eDEX's internal terminal control websocket, and send arbitrary commands to the shell.

Patches

The project has been archived for 2+ years, and at the moment there are no plans to patch this issue and release a new version.

Workarounds

  • Shutting down eDEX-UI when browsing the web
  • Ensuring the eDEX terminal runs with lowest possible privileges helps mitigating potential risks

References

More context about the root cause of this issue can be found here:
https://christian-schneider.net/CrossSiteWebSocketHijacking.html

The vulnerable code can be examined here:

edex-ui/src/classes/terminal.class.js

Line 458 in 04a00c4

this.wss.on("connection", ws => {

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
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

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:C/C:L/I:L/A:L

CVE ID

CVE-2023-30856

Weaknesses

Credits