9.8
CRITICAL
CVE-2021-27215
"Genua Genugate Authentication Bypass"
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.

INFO

Published Date :

March 3, 2021, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 5:57 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-27215 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Genua genuagate
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27215 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27215 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://kunde.genua.de/en/overview/genugate.html
    Added Reference https://sec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/
    Added Reference https://www.genua.de/en/it-security-solutions/high-resistance-firewall-genugate
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-287 CWE-306
  • Initial Analysis by [email protected]

    Mar. 25, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://kunde.genua.de/en/overview/genugate.html No Types Assigned https://kunde.genua.de/en/overview/genugate.html Patch, Vendor Advisory
    Changed Reference Type https://sec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/ No Types Assigned https://sec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/ Exploit, Third Party Advisory
    Changed Reference Type https://www.genua.de/en/it-security-solutions/high-resistance-firewall-genugate No Types Assigned https://www.genua.de/en/it-security-solutions/high-resistance-firewall-genugate Product
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:genua:genuagate:*:*:*:*:*:*:*:* versions up to (including) 9.0 *cpe:2.3:a:genua:genuagate:9.0:-:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p1:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p10:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p11:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p12:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p13:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p14:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p15:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p16:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p17:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p18:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p2:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p3:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p4:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p5:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p6:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p7:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p8:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.0:p9:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:-:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:p1:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:p2:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:p3:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:p4:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:p5:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:9.6.0:p6:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:*:*:*:*:*:*:*:* versions from (including) 10.0 up to (including) 10.1 *cpe:2.3:a:genua:genuagate:10.1:-:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:10.1:p1:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:10.1:p2:*:*:*:*:*:* *cpe:2.3:a:genua:genuagate:10.1:p3:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27215 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.78 }} -0.48%

score

0.71502

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability