CVE-2018-19943 QNAP Network Attached Storage (NAS): web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
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 Cross-Site Scripting Vulnerability
- Product
- QNAP Network Attached Storage (NAS)
- CISA description
- A cross-site scripting vulnerability affecting QNAP NAS File Station could allow remote attackers to inject malicious code.
- Type of flaw
- Web page flaw (CWE-79, CWE-80)
- Confirmed exploited
- May 24, 2022 — known to be used in ransomware attacks
- US federal patch deadline
- Jun 14, 2022
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2018-19943 ·
Questions about CVE-2018-19943
Is CVE-2018-19943 being exploited?
Yes. CISA added CVE-2018-19943 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-2018-19943?
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-2018-19943?
Only if you use QNAP Network Attached Storage (NAS). Used in ransomware, which spreads to ordinary people and small businesses.