SB2020050503 - Multiple vulnerabilities in Red Hat Keycloak

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Main Vulnerability Database SB2020050503

SB2020050503 - Multiple vulnerabilities in Red Hat Keycloak

Published: May 5, 2020

Security Bulletin ID SB2020050503
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper Authorization (CVE-ID: CVE-2020-10686)

CWE-ID: CWE-285 - Improper Authorization

CVSSv4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to bypass authorization checks.

The vulnerability exists due to improper authorization checks where a malicious user registers as oneself. A remote administrator can use the remove devices form to post different credential IDs and possibly remove MFA devices for other users.


2) Information disclosure (CVE-ID: CVE-2020-1744)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists when configuring an Conditional OTP Authentication Flow as a post login flow of an IDP, the failure login events for OTP are not being sent to the brute force protection event queue. So BruteForceProtector does not handle this events. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.

References