RHEL 7 : Red Hat Single Sign-On 7.4.9 security update on RHEL 7 (Moderate) (RHSA-2021:3528)

high Nessus Plugin ID 165123

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3528 advisory.

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

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

- 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected rh-sso7-keycloak and / or rh-sso7-keycloak-server packages.

Plugin Details

Severity: High

ID: 165123

File Name: redhat-RHSA-2021-3528.nasl

Version: 1.5

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/15/2022

Updated: 1/23/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-3637

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2021-3632

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:rh-sso7-keycloak, p-cpe:/a:redhat:enterprise_linux:rh-sso7-keycloak-server

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 9/14/2021

Vulnerability Publication Date: 2/18/2021

Reference Information

CVE: CVE-2020-28491, CVE-2020-35509, CVE-2021-3513, CVE-2021-3632, CVE-2021-3637

CWE: 20, 287, 400, 522, 770

RHSA: 2021:3528

Detections

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