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Red Hat: RHSA-2021-3529 Moderate: SSO 7.4.9 DoS and Authentication Issues

red hat
Calendar Grey September 14, 2021
Dist Redhat Esm H88
Minor security patch for Red Hat Access Management 7.4.9 mitigates various vulnerabilities related to user verification and session access.
New Red Hat Single Sign-On 7.4.9 packages are now available for Red Hat Enterprise Linux 8

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This release of Red Hat Single Sign-On 7.4.9 serves as a replacement for Red Hat Single Sign-On 7.4.8, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* jackson-dataformat-cbor: Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception (CVE-2020-28491)
* keycloak: Brute force attack is possible even after the account lockout (CVE-2021-3513)
* keycloak: Anyone can register a new device when there is no device registered for passwordless login (CVE-2021-3632)
* keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly could lead to a DoS attack (CVE-2021-3637)
* keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity (CVE-2020-35509)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat DoS authentication Moderate Single Sign-On

References

https://access.redhat.com/security/cve/CVE-2020-28491 https://access.redhat.com/security/cve/CVE-2020-35509 https://access.redhat.com/security/cve/CVE-2021-3513 https://access.redhat.com/security/cve/CVE-2021-3632 https://access.redhat.com/security/cve/CVE-2021-3637 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_single_sign-on/7.4/html/release_notes/index

Package List

Red Hat Single Sign-On 7.4 for RHEL 8:
Source: rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el8sso.src.rpm
noarch: rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el8sso.noarch.rpm rh-sso7-keycloak-server-9.0.15-1.redhat_00002.1.el8sso.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Advisory ID: RHSA-2021:3529-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3529
Issue date: 2021-09-14

Topic

New Red Hat Single Sign-On 7.4.9 packages are now available for Red HatEnterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat DoS authentication Moderate Single Sign-On

Relevant Releases Architectures

Red Hat Single Sign-On 7.4 for RHEL 8 - noarch

Bugs Fixed

1912427 - CVE-2020-35509 keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity

1930423 - CVE-2020-28491 jackson-dataformat-cbor: Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception

1953439 - CVE-2021-3513 keycloak: Brute force attack is possible even after the account lockout

1978196 - CVE-2021-3632 keycloak: Anyone can register a new device when there is no device registered for passwordless login

1979638 - CVE-2021-3637 keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly could lead to a DoS attack

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