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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: TerraMaster NAS suffers from **PHP Object Instantiation** via `api.php?mobile/createRaid`.…
📦 **Affected**: **TerraMaster NAS** devices running **TerraMaster TOS**. Specifically, the `api.php` module handling RAID creation via the mobile interface is vulnerable.
Q4What can hackers do? (Privileges/Data)
💀 **Attacker Capabilities**: Full **Remote Code Execution (RCE)**. Hackers can run system commands with the privileges of the web server, potentially gaining **full control** of the NAS and accessing all stored data.
Q5Is exploitation threshold high? (Auth/Config)
⚠️ **Exploitation Threshold**: **LOW**. The vulnerability is **unauthenticated**. Attackers do not need valid credentials to exploit the `createRaid` API endpoint, making it easy to target.
Q6Is there a public Exp? (PoC/Wild Exploitation)
🔓 **Public Exploit**: **YES**. Public PoCs and exploits are available on GitHub (e.g., `Threekiii/Awesome-POC`) and PacketStorm. Wild exploitation is likely due to the ease of use.
Q7How to self-check? (Features/Scanning)
🔍 **Self-Check**: Scan for the endpoint `/api.php?mobile/createRaid`. Test if the `raidtype` and `diskstring` parameters accept PHP object payloads. Look for TerraMaster NAS devices exposed to the internet.
Q8Is it fixed officially? (Patch/Mitigation)
🩹 **Official Fix**: The vulnerability was published in **August 2023**. Users should check for the latest **TerraMaster TOS firmware updates** which likely patch this API input validation flaw.
Q9What if no patch? (Workaround)
🚧 **No Patch Workaround**: **Block external access** to the TerraMaster NAS management interface. Disable the `api.php` mobile endpoint if possible via firewall rules. Restrict access to trusted IPs only.
Q10Is it urgent? (Priority Suggestion)
🔥 **Urgency**: **CRITICAL**. Due to **unauthenticated RCE** and **public exploits**, this is a high-priority vulnerability. Immediate patching or network isolation is required to prevent compromise.