admin c20ff56e4a fix(CTRL-001): reject path traversal in .fab import manifest
manifest.AppName / HDDSubdirs / VolumeNames are attacker-controlled JSON inside
an imported .fab and reach filepath.Join+MkdirAll/extractTar with a trusted base
(restore.go:339/606/678). UnmarshalManifest did zero validation, so '../..' in
any of them escaped the stacks / HDD destination dir.

- New appexport.ValidateSegment + validateManifestPaths; UnmarshalManifest now
  fails the parse on a traversal segment (the chokepoint).
- Defence-in-depth ValidateSegment guards at the HDD-subdir and volume-name join
  loops in restore.go.
- ConfigFiles deliberately NOT validated (holds dotfiles like .felhom.yml; never
  used in a restore join).
- Permanent regression test (was the deep-sweep failing audit test) now asserts
  rejection of traversal + acceptance of legit names.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-13 19:09:47 +02:00
2026-02-16 13:28:03 +01:00
2026-02-18 08:36:12 +01:00
2026-06-11 14:02:47 +02:00
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