CVE-2018-19949 QNAP Network Attached Storage (NAS): command or code injection
In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.
Confirmed exploited by CISA on · US federal patch deadline Jun 14, 2022
What to do
- Install QNAP's security update for Network Attached Storage (NAS). If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Turn on automatic firmware updates and replace gear the maker no longer supports.
- Change default passwords and switch off remote administration and features you do not use.
- Do not put storage boxes or cameras directly on the internet — use the maker's app or a VPN.
Who is affected
Could reach you. Used in ransomware, which spreads to ordinary people and small businesses.
What's at risk: Taken over in bulk to join botnets, used to watch your traffic, or — for storage boxes — locked by ransomware.
The details
- Official name
- QNAP NAS File Station Command Injection Vulnerability
- Product
- QNAP Network Attached Storage (NAS)
- CISA description
- A command injection vulnerability affecting QNAP NAS File Station could allow remote attackers to run commands.
- Type of flaw
- Command or code injection (CWE-20, CWE-77, CWE-78)
- Confirmed exploited
- May 24, 2022 — known to be used in ransomware attacks
- US federal patch deadline
- Jun 14, 2022
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Answering about CVE-2018-19949 ·
Questions about CVE-2018-19949
Is CVE-2018-19949 being exploited?
Yes. CISA added CVE-2018-19949 to its Known Exploited Vulnerabilities catalog on May 24, 2022, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2018-19949?
Install QNAP's security update for Network Attached Storage (NAS). If no update exists, follow the vendor's workaround or stop using the product until one ships. Turn on automatic firmware updates and replace gear the maker no longer supports.
Am I affected by CVE-2018-19949?
Only if you use QNAP Network Attached Storage (NAS). Used in ransomware, which spreads to ordinary people and small businesses.