Description
Kopia through 0.23.1 contains a path traversal vulnerability in copyDirectoryContent that allows users with repository write access to escape the restore directory via crafted entry names. Attackers can create snapshots whose directory manifest entries are named '..', so victims restoring with default options write attacker-chosen content outside the restore directory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| kopia | kopia | ≤ 0.23.1 | — |
References
- GitHub Issue #5700 issue-tracking
- https://github.com/kopia/kopia product
- https://github.com/kopia/kopia/blob/v0.23.1/snapshot/restore/restore.go#L397 technical-description
- VulnCheck Advisory: Kopia through 0.23.1 Path Traversal in Snapshot Restore via Directory Entry Names third-party-advisory