7.5
HIGH
CVE-2021-3513
Keycloak Brute Force Attack through Misleading Error Messages
Description

A flaw was found in keycloak where a brute force attack is possible even when the permanent lockout feature is enabled. This is due to a wrong error message displayed when wrong credentials are entered. The highest threat from this vulnerability is to confidentiality.

INFO

Published Date :

Aug. 22, 2022, 3:15 p.m.

Last Modified :

Aug. 23, 2022, 6:35 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-3513 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-3513 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 Redhat keycloak
2 Redhat single_sign-on
: Total Affected Vendor : 1 | Products : 2
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-2021-3513.

URL Resource
https://access.redhat.com/security/cve/CVE-2021-3513 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1953439 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).

Profile Photo
muneebaashiq/MBProjects

None

Updated: 3 months, 4 weeks ago
1 stars 0 fork 0 watcher
Born at : Jan. 24, 2024, 4:31 p.m. This repo has been linked 83 different CVEs too.

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

The following list is the news that have been mention CVE-2021-3513 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3513 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]

    Aug. 23, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-3513 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-3513 Vendor Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1953439 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1953439 Issue Tracking, Vendor Advisory
    Added CWE NIST CWE-209
    Added CPE Configuration OR *cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* versions up to (excluding) 13.0.0
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-2021-3513 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-2021-3513 weaknesses.

CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-54: Query System for Information Query System for Information CAPEC-215: Fuzzing for application mapping Fuzzing for application mapping CAPEC-463: Padding Oracle Crypto Attack Padding Oracle Crypto Attack CAPEC-50: Password Recovery Exploitation Password Recovery Exploitation CAPEC-102: Session Sidejacking Session Sidejacking CAPEC-474: Signature Spoofing by Key Theft Signature Spoofing by Key Theft CAPEC-509: Kerberoasting Kerberoasting CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-555: Remote Services with Stolen Credentials Remote Services with Stolen Credentials CAPEC-560: Use of Known Domain Credentials Use of Known Domain Credentials CAPEC-561: Windows Admin Shares with Stolen Credentials Windows Admin Shares with Stolen Credentials CAPEC-600: Credential Stuffing Credential Stuffing CAPEC-644: Use of Captured Hashes (Pass The Hash) Use of Captured Hashes (Pass The Hash) CAPEC-645: Use of Captured Tickets (Pass The Ticket) Use of Captured Tickets (Pass The Ticket) CAPEC-652: Use of Known Kerberos Credentials Use of Known Kerberos Credentials CAPEC-653: Use of Known Operating System Credentials Use of Known Operating System Credentials
Exploit Prediction

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

0.16 }} 0.00%

score

0.51415

percentile

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