Auth bypass in Wago 751-9301
CVE-2022-45138
The configuration backend of the web-based management can be used by unauthenticated users, although only authenticated users should be able to use the API. The vulnerability allows an unauthenticated attacker to read and set several device parameters that can lead to full compromise of the device.
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: 0.007 (54.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Wago 751-9301
- Wago 751-9301 Firmware — versions 22, 23
- Wago 752-8303\/8000-002
- Wago 752-8303\/8000-002 Firmware — versions 22, 23
- Wago Compact Controller Cc100 (751-9301) — versions FW16, FW22 Patch 1, FW23
- Wago Edge Controller (752-8303/8000-002) — versions FW18, FW22 Patch 1, FW23
- Wago Pfc100
- Wago Pfc100 (750-81xx/xxx-Xxx) — versions FW16, FW22 Patch 1, FW23
- Wago Pfc100 Firmware — versions 22, 23
- Wago Pfc200
Weakness classification (CWE)
References
- cert.vde.com/en/advisories/VDE-2022-060/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-45138?
- CVE-2022-45138 is a critical-severity vulnerability in Wago 751-9301, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2023-02-27.
- How severe is CVE-2022-45138?
- Critical severity. CVSS v3 base score is 9.8 out of 10.