Auth bypass in Wago 0852-0303
CVE-2021-20998
In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it is possible to create users.
Vulnerability class: Broken Authentication
EPSS: 0.011 (62.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Wago 0852-0303 — versions unspecified
- Wago 0852-0303_firmware
- Wago 0852-1305 — versions unspecified
- Wago 0852-1305/000-001 — versions unspecified
- Wago 0852-1305\/000-001
- Wago 0852-1305\/000-001_firmware
- Wago 0852-1305_firmware
- Wago 0852-1505 — versions unspecified
- Wago 0852-1505/000-001 — versions unspecified
- Wago 0852-1505\/000-001
Weakness classification (CWE)
References
- info@cert.vde.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20998?
- CVE-2021-20998 is a critical-severity vulnerability in Wago 0852-0303, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2021-05-13.
- How severe is CVE-2021-20998?
- Critical severity. CVSS v3 base score is 10.0 out of 10.