SB2021052511 - Red Hat OpenShift Service Mesh 1.1 for RHEL 8 update for servicemesh
Published: May 25, 2021
Security Bulletin ID
SB2021052511
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authorization (CVE-ID: CVE-2021-31921)
The vulnerability allows a remote attacker to bypass authorization procedure.
The vulnerability exists due to a logic issue when the istio gateway is configured with TLS mode `AUTO_PASSTHROUGH`. A remote non-authenticated attacker can bypass authorization checks and gain unauthorized access to services in the cluster.
Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.
Remediation
Install update from vendor's website.