Calico privilege escalation vulnerability
Moderate severity
GitHub Reviewed
Published
Apr 30, 2024
to the GitHub Advisory Database
•
Updated Sep 6, 2024
Package
Affected versions
< 3.26.5
>= 3.27.0, < 3.27.3
Patched versions
3.26.5
3.27.3
Description
Published by the National Vulnerability Database
Apr 29, 2024
Published to the GitHub Advisory Database
Apr 30, 2024
Reviewed
Jun 10, 2024
Last updated
Sep 6, 2024
In vulnerable versions of Calico (v3.27.2 and below), Calico Enterprise (v3.19.0-1, v3.18.1, v3.17.3 and below), and Calico Cloud (v19.2.0 and below), an attacker who has local access to the Kubernetes node, can escalate their privileges by exploiting a vulnerability in the Calico CNI install binary. The issue arises from an incorrect SUID (Set User ID) bit configuration in the binary, combined with the ability to control the input binary, allowing an attacker to execute an arbitrary binary with elevated privileges.
References