In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/etcd-io/etcd(Go) | 3.4.0-rc.0 | 3.4.10 | N/A |
| github.com/etcd-io/etcd(Go) | 0 | 3.3.23 | N/A |
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