Detections
Analytics
RHEL 7 : Red Hat Single Sign-On 7.4.7 security update on RHEL 7 (Moderate) (RHSA-2021:2064)
high Nessus Plugin ID 149815
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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-2021:2064 advisory.- keycloak: Internationalized domain name (IDN) homograph attack to impersonate users (CVE-2021-3424)
- keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP (CVE-2021-3461)
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.See Also
https://access.redhat.com/security/cve/CVE-2021-3424
https://access.redhat.com/security/cve/CVE-2021-3461
https://access.redhat.com/errata/RHSA-2021:2064
Plugin Details
Severity: High
ID: 149815
File Name: redhat-RHSA-2021-2064.nasl
Version: 1.9
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 5/20/2021
Updated: 1/23/2023
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2021-3424
CVSS v3
Risk Factor: High
Base Score: 7.1
Temporal Score: 6.2
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2021-3461
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: 5/20/2021
Vulnerability Publication Date: 5/20/2021
Reference Information
CVE: CVE-2021-3424, CVE-2021-3461