CVE-2023-30856

moderate-risk

Published 2023-04-28

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 The project has been archived since 2021, and as of time of publication there are no plans to patch this issue and release a new version.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.

Do I need to act?

0.19% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.3/10 High

NETWORK / LOW complexity

Affected Products (1)

Edex-Ui

Affected Vendors

Edex-Ui Project

References (6)

Technical Description https://christian-schneider.net/CrossSiteWebSocketHijacking.html

Product https://github.com/GitSquared/edex-ui/blob/04a00c4079908788b371c6ecdefff96d0d995...

Vendor Advisory https://github.com/GitSquared/edex-ui/security/advisories/GHSA-q8xc-f2wf-ffh9

Technical Description https://christian-schneider.net/CrossSiteWebSocketHijacking.html

Product https://github.com/GitSquared/edex-ui/blob/04a00c4079908788b371c6ecdefff96d0d995...

Vendor Advisory https://github.com/GitSquared/edex-ui/security/advisories/GHSA-q8xc-f2wf-ffh9

/ 100

moderate-risk

Severity 29/34 · Critical

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal