CVE-2021-27215
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.35% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- genua/genuagate
- Source
- cve@mitre.org
References
- https://kunde.genua.de/en/overview/genugate.htmlPatch, Vendor Advisory
- https://sec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/Exploit, Third Party Advisory
- https://www.genua.de/en/it-security-solutions/high-resistance-firewall-genugateProduct
- https://kunde.genua.de/en/overview/genugate.htmlPatch, Vendor Advisory
- https://sec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/Exploit, Third Party Advisory
- https://www.genua.de/en/it-security-solutions/high-resistance-firewall-genugateProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.