CVE-2018-10562 Dasan Gigabit Passive Optical Network (GPON) Routers: 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 21, 2022
What to do
- Install Dasan's security update for Gigabit Passive Optical Network (GPON) Routers. 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
- Dasan GPON Routers Command Injection Vulnerability
- Product
- Dasan Gigabit Passive Optical Network (GPON) Routers
- CISA description
- Dasan GPON Routers contain an authentication bypass vulnerability. When combined with CVE-2018-10561, exploitation can allow an attacker to perform remote code execution.
- Type of flaw
- Command or code injection (CWE-78)
- Confirmed exploited
- Mar 31, 2022 — known to be used in ransomware attacks
- US federal patch deadline
- Apr 21, 2022
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Answering about CVE-2018-10562 ·
Questions about CVE-2018-10562
Is CVE-2018-10562 being exploited?
Yes. CISA added CVE-2018-10562 to its Known Exploited Vulnerabilities catalog on Mar 31, 2022, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2018-10562?
Install Dasan's security update for Gigabit Passive Optical Network (GPON) Routers. 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-2018-10562?
Only if you use Dasan Gigabit Passive Optical Network (GPON) Routers. Used in ransomware, which spreads to ordinary people and small businesses.