CVE-2020-3110 (AKA: CDPwn)

A vulnerability in the Cisco Discovery Protocol implementation for the Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP Camera. The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to the targeted IP Camera. A successful exploit could allow the attacker to expose the affected IP Camera for remote code execution or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition. 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). This vulnerability is fixed in Video Surveillance 8000 Series IP Camera Firmware Release 1.0.7 and later.

Recent assessments:

zeroSteiner at February 06, 2020 7:52pm UTC reported:

This is a heap buffer overflow vulnerability in the parser of CDP packets in the Cisco 8000 Series IP cameras. Successfully exploiting this vulnerability would lead to a denial of service condition or potentially access to the video feed. The affected binary reportedly lacks ASLR support, which would aid efforts to produce a functioning exploit.

An attacker would need to be on the local area network as the affected IP camera This is due to CDP traffic not being forwarded across network boundaries. An attacker leveraging this vulnerability would likely either be physically in the building or have compromised a host which is physically in the building.

Assessed Attacker Value: 2
Assessed Attacker Value: 2Assessed Attacker Value: 4