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CVE-2021-1521

Medium

Description

A vulnerability in the Cisco Discovery Protocol implementation for Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause an affected IP camera to reload. This 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 an affected IP camera. A successful exploit could allow the attacker to cause the affected IP camera to reload unexpectedly, resulting in a denial of service (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).

SeverityMedium
CVSS6.5
Exploit probability—
ProductCisco Video Surveillance 8400 Firmware
PublishedMay 6, 2021
First seenMay 6, 2021
Weakness typeCWE-119Memory buffer bounds error

How to fix

Update
  • cisco video_surveillance_8400_firmware1.0.9-11 or later
  • cisco video_surveillance_8000p_firmware1.0.9-11 or later
  • cisco video_surveillance_8020_firmware1.0.9-11 or later
  • cisco video_surveillance_8030_firmware1.0.9-11 or later
  • cisco video_surveillance_8070_firmware1.0.9-11 or later
  • cisco video_surveillance_8620_firmware1.0.9-11 or later
  • cisco video_surveillance_8630_firmware1.0.9-11 or later
  • cisco video_surveillance_8930_firmware1.0.9-11 or later
Vendor advisories

Affected products

ProductAffected versionsFixed in
cisco video_surveillance_8400_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8000p_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8020_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8030_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8070_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8620_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8630_firmwarev < 1.0.9-111.0.9-11
cisco video_surveillance_8930_firmwarev < 1.0.9-111.0.9-11

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