CVE-2016-11021 D-Link DCS-930L Devices: 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 Apr 15, 2022
What to do
- Install D-Link's security update for DCS-930L Devices. 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. This one is aimed at devices or apps of the kind people own.
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
- D-Link DCS-930L Devices OS Command Injection Vulnerability
- Product
- D-Link DCS-930L Devices
- CISA description
- setSystemCommand on D-Link DCS-930L devices allows a remote attacker to execute code via an OS command.
- Type of flaw
- Command or code injection (CWE-78)
- Confirmed exploited
- Mar 25, 2022
- US federal patch deadline
- Apr 15, 2022
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Answering about CVE-2016-11021 ·
Questions about CVE-2016-11021
Is CVE-2016-11021 being exploited?
Yes. CISA added CVE-2016-11021 to its Known Exploited Vulnerabilities catalog on Mar 25, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2016-11021?
Install D-Link's security update for DCS-930L Devices. 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-2016-11021?
Only if you use D-Link DCS-930L Devices. This one is aimed at devices or apps of the kind people own.