CVE-2021-42912 Command injection in n/a
Authenticated attackers can execute arbitrary OS commands as root via the ping diagnostic tool in FiberHome ONU GPON devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42912?
CVE-2021-42912 is a high-severity command injection vulnerability in n/a, published on 16 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FiberHome ONU GPON AN5506-04-F RP2617 is affected by an OS command injection vulnerability. This vulnerability allows the attacker, once logged in, to send commands to the operating system as the root user via the ping diagnostic tool, bypassing the IP address field, and concatenating OS commands with a semicolon.
Weakness: CWE-78
Which versions are affected by CVE-2021-42912?
It affects 6 products.
Products include Fiberhome Aan5506-04-G2g Firmware, Fiberhome An5506-01-a Firmware, Fiberhome An5506-01-B Firmware, Fiberhome An5506-02-B Firmware, Fiberhome An5506-04-B Firmware, Fiberhome An5506-04-F Firmware.
How do I fix CVE-2021-42912?
No fix has been published for CVE-2021-42912 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-2021-42912 being exploited?
There is no known exploitation of CVE-2021-42912 in the wild and no public exploit code.
Sources
Also known as GHSA-hcfv-5p8h-vvh5.