Description
Powerlevel10k before 1.20.19 contains a symlink following vulnerability in _p9k_dump_instant_prompt that allows local attackers to overwrite victim-writable files via a predictable temporary path. Attackers can pre-plant symlinks at p10k-instant-prompt-output-<user>-<pid> in TMPDIR, guessing the victim's shell PID, so shell startup truncates and overwrites targeted files.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| romkatv | powerlevel10k | < 1.20.19 | 1.20.19 |
References
- GitHub Issue #2972 issue-tracking
- https://github.com/romkatv/powerlevel10k product
- https://github.com/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39 patch
- https://github.com/romkatv/powerlevel10k/blob/v1.20.0/internal/p10k.zsh#L6445-L6452 technical-description
- VulnCheck Advisory: Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File third-party-advisory