CVE-2022-21173 Command injection in ELECOM LAN routers
An attacker on the adjacent network can execute arbitrary OS commands on ELECOM LAN routers due to hidden functionality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-21173?
CVE-2022-21173 is a high-severity command injection vulnerability in ELECOM LAN routers, published on 8 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Hidden functionality vulnerability in ELECOM LAN routers (WRH-300BK3 firmware v1.05 and earlier, WRH-300WH3 firmware v1.05 and earlier, WRH-300BK3-S firmware v1.05 and earlier, WRH-300DR3-S firmware v1.05 and earlier, WRH-300LB3-S firmware v1.05 and earlier, WRH-300PN3-S firmware v1.05 and earlier, WRH-300WH3-S firmware v1.05 and earlier, and WRH-300YG3-S firmware v1.05 and earlier) allows an attacker on the adjacent network to execute an arbitrary OS command via unspecified vectors.
Which versions are affected by CVE-2022-21173?
It affects 8 products.
Products include Elecom Wrh-300bk3-S Firmware, Elecom Wrh-300bk3 Firmware, Elecom Wrh-300dr3-S Firmware, Elecom Wrh-300lb3-S Firmware, Elecom Wrh-300pn3-S Firmware, Elecom Wrh-300wh3-S Firmware and 2 more.
How do I fix CVE-2022-21173?
No fix has been published for CVE-2022-21173 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2022-21173 being exploited?
There is no known exploitation of CVE-2022-21173 in the wild and no public exploit code.
Sources
Also known as GHSA-4xq4-ppq9-6vrh.