CVE-2020-3543 Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Memory Leak Vulnerability
An adjacent attacker can cause a memory leak and device crash by sending crafted Cisco Discovery Protocol packets to Cisco Video Surveillance IP cameras.
- 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-2020-3543?
CVE-2020-3543 is a medium-severity denial of service vulnerability in Cisco Video Surveillance 8000 Series IP Cameras, published on 8 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Cisco Discovery Protocol of Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect processing of certain Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending certain Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DOS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Which versions are affected by CVE-2020-3543?
It affects 8 products.
Products include Cisco 8000p Ip Camera Firmware, Cisco 8020 Ip Camera Firmware, Cisco 8030 Ip Camera Firmware, Cisco 8070 Ip Camera Firmware, Cisco 8400 Ip Camera Firmware, Cisco 8620 Ip Camera Firmware and 2 more.
How do I fix CVE-2020-3543?
No fix has been published for CVE-2020-3543 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-2020-3543 being exploited?
There is no known exploitation of CVE-2020-3543 in the wild and no public exploit code.
Other vulnerabilities in Cisco Video Surveillance 8000 Series IP Cameras
- CVE-2020-3544 Memory corruption in Cisco Video Surveillance 8000 Series IP Cameras
- CVE-2020-3506 Memory corruption in Cisco Video Surveillance 8000 Series IP Cameras
- CVE-2020-3507 Memory corruption in Cisco Video Surveillance 8000 Series IP Cameras
- CVE-2020-3505 Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Memory Leak Vulnerability
Sources
Also known as GHSA-jmv5-wf84-2hgh.