Auth bypass in Crestron Hd-Md4x2-4k-E

CVE-2022-23178

An issue was discovered on Crestron HD-MD4X2-4K-E 1.0.0.2159 devices. When the administrative web interface of the HDMI switcher is accessed unauthenticated, user credentials are disclosed that are valid to authenticate to the web interface. Specifically, aj.html sends a JSON document with uname and upassword fields.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.752 (99.5th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-23178: held from 0.752 to 0.752.

EPSS over last 30 days · oldest: 0.752 · newest: 0.752 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-23178?
CVE-2022-23178 is a critical-severity vulnerability in Crestron Hd-Md4x2-4k-E, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-01-15.
How severe is CVE-2022-23178?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-23178 known to be exploited?
18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.