CVE-2021-40405 Denial of service in RLC-410W
An attacker can cause a Reolink security camera to reboot by sending a specially crafted HTTP request to the upgrade API.
- 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-2021-40405?
CVE-2021-40405 is a high-severity denial of service vulnerability in Reolink Rlc-410w Firmware, published on 14 Apr 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A denial of service vulnerability exists in the cgiserver.cgi Upgrade API functionality of Reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to a reboot. An attacker can send an HTTP request to trigger this vulnerability.
Which versions are affected by CVE-2021-40405?
It affects 1 product.
Products include Reolink Rlc-410w Firmware.
How do I fix CVE-2021-40405?
No fix has been published for CVE-2021-40405 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-40405 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40405 exists.
Other vulnerabilities in Reolink Rlc-410w Firmware
Sources
Also known as GHSA-82gr-5fpf-q3w4.