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CVEs-PoC/2021/CVE-2021-20206.md
2025-09-29 21:09:30 +02:00

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CVE-2021-20206

Description

An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use special elements such as "../" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

POC

Reference

No PoCs from references.

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