CVE-2020-27838
Keycloak Client Registration Path Traversal
Description
A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.
INFO
Published Date :
March 8, 2021, 10:15 p.m.
Last Modified :
March 15, 2021, 2:32 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2020-27838 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-27838.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1906797 | Issue Tracking Vendor Advisory |
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).
CVE-2020-27838 - KeyCloak - Information Exposure
cve keycloak pentesting sso-authentication vapt wapt cve-2020-27838
Python
None
Vulnerabilities you my miss during a penetration testing.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-27838 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-27838 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 15, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1906797 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1906797 Issue Tracking, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* versions up to (excluding) 13.0.0 *cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27838 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-27838
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
11.75 }} 0.39%
score
0.95424
percentile