Auth bypass in Genua Genuagate
CVE-2021-27215
An issue was discovered in genua genugate before 9.0 Z p19, 9.1.x through 9.6.x before 9.6 p7, and 10.x before 10.1 p4. The Web Interfaces (Admin, Userweb, Sidechannel) can use different methods to perform the authentication of a user. A specific authentication method during login does not check the provided data (when a certain manipulation occurs) and returns OK for any authentication request. This allows an attacker to login to the admin panel as a user of his choice, e.g., the root user (with highest privileges) or even a non-existing user.
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: 0.023 (83.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Genua Genuagate — versions 9.0, 9.6.0, 10.1
Weakness classification (CWE)
References
- www.genua.de/en/it-security-solutions/high-resistance-firewall-genugate (Product)
- kunde.genua.de/en/overview/genugate.html (Patch, Vendor Advisory)
- sec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27215?
- CVE-2021-27215 is a critical-severity vulnerability in Genua Genuagate, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-03-03.
- How severe is CVE-2021-27215?
- Critical severity. CVSS v3 base score is 9.8 out of 10.