GHSA-xjqr-g762-pxwp
containernetworking/cni improper limitation of path name
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/containernetworking/cni | < 0.8.1 | 0.8.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
### Specific Go Packages Affected
github.com/containernetworking/cni/pkg/invoke
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2021-20206
- https://github.com/containernetworking/cni/pull/808
- https://bugzilla.redhat.com/show_bug.cgi?id=1919391
- https://github.com/containernetworking/cni
- https://pkg.go.dev/vuln/GO-2022-0230
- https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549