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CVE-2023-30856

8.3 · HIGH

eDEX-UI is a science fiction terminal emulator.

Published Apr 28, 2023CWE-346EPSS 0.35%

Overview

CVE-2023-30856 is a high-severity vulnerability. It was published on April 28, 2023 and has a CVSS 3.1 base score of 8.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

eDEX-UI is a science fiction terminal emulator. Versions 2.2.8 and prior are vulnerable to cross-site websocket hijacking. 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. The project has been archived since 2021, and as of time of publication there are no plans to patch this issue and release a new version. Some workarounds are available, including shutting down eDEX-UI when browsing the web and ensuring the eDEX terminal runs with lowest possible privileges.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refchristian-schneider.net/CrossSiteWebSocketHijacking.htmlGitHubgithub.com/GitSquared/edex-ui/blob/04a00c4079908788b371c6ecdefff96d0d9950f8/src/classes/terminal.class.js#L458GitHubgithub.com/GitSquared/edex-ui/security/advisories/GHSA-q8xc-f2wf-ffh9Refchristian-schneider.net/CrossSiteWebSocketHijacking.htmlGitHubgithub.com/GitSquared/edex-ui/blob/04a00c4079908788b371c6ecdefff96d0d9950f8/src/classes/terminal.class.js#L458GitHubgithub.com/GitSquared/edex-ui/security/advisories/GHSA-q8xc-f2wf-ffh9

How CyberStrike helps

Frequently asked questions

What is CVE-2023-30856?

CVE-2023-30856 is a high-severity vulnerability. It was published on April 28, 2023 and has a CVSS 3.1 base score of 8.3 (HIGH).

How severe is CVE-2023-30856?

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-30856?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-30856?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-30856 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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