CVE-2023-43477 Post-Auth Command Injection in Telstra Smart Modem Gen 2 (Arcadyan LH1000)
Authenticated attackers can inject commands via the ping_from parameter to execute code as root on Telstra Smart Modem Gen 2 devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-43477?
CVE-2023-43477 is a medium-severity command injection vulnerability in Telstra Smart Modem Gen 2 (Arcadyan LH1000), published on 20 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The ping_from parameter of ping_tracerte.cgi in the web UI of Telstra Smart Modem Gen 2 (Arcadyan LH1000), firmware versions < 0.18.15r, was not properly sanitized before being used in a system call, which could allow an authenticated attacker to achieve command injection as root on the device.
Weakness: CWE-77
Which versions are affected by CVE-2023-43477?
It affects 1 product.
Products include Telstra Arcadyan Lh1000 Firmware.
How do I fix CVE-2023-43477?
No fix has been published for CVE-2023-43477 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-2023-43477 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43477 exists.
Other vulnerabilities in Telstra Smart Modem Gen 2 (Arcadyan LH1000)
Sources
Also known as GHSA-87jp-gf78-6p6w.