CVE-2026-41236

CVE-2026-41236 · Froxlor has privilege escalation in SSH key synchronization via symlinked `authorized_keys` path

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Froxlor is open source server administration software. Version 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchronization path used for customer FTP users. The provisioning code appends public keys to `~/.ssh/authorized_keys` under a customer-controlled home directory without verifying that the target path is not a symbolic link. If an attacker controls a shell-enabled customer account and can modify files inside the assigned home directory, the attacker can replace `~/.ssh/authorized_keys` with a symlink to `/root/.ssh/authorized_keys`. When Froxlor's privileged cron task later synchronizes SSH keys, it appends the attacker-supplied key into root's authorized key file, resulting in root SSH access. Version 2.3.7 contains a patch.

CVSS 8.8 · Высокий · EPSS 0,4% · Есть исправление

Опубликовано

2026-06-04T17:52:10.066Z

Обновлено

2026-06-08T14:32:22.356Z

Стек: php

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