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AUSCERT External Security Bulletin Redistribution
ESB-2021.0147
Cisco Video Surveillance 8000 Series IP Cameras Cisco
Discovery Protocol Denial of Service Vulnerability
14 January 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Video Surveillance 8000 Series IP Camera
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1131
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcameras-dos-9zdZcUfq
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Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Denial
of Service Vulnerability
Priority: Medium
Advisory ID: cisco-sa-ipcameras-dos-9zdZcUfq
First Published: 2021 January 13 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvv72651
CVE Names: CVE-2021-1131
CWEs: CWE-119
Summary
o 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.
The vulnerability is due to missing checks when Cisco Discovery Protocol
messages are processed. 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).
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcameras-dos-9zdZcUfq
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco Video
Surveillance 8000 Series IP Cameras if they were running a firmware release
earlier than Release 1.0.9-8 and they had Cisco Discovery Protocol enabled.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect the following
Cisco products:
Video Surveillance 3000 Series IP Cameras
Video Surveillance 4000 Series High-Definition IP Cameras
Video Surveillance 4300E High-Definition IP Cameras
Video Surveillance 4500E High-Definition IP Cameras
Video Surveillance 6000 Series IP Cameras
Video Surveillance 7000 Series IP Cameras
Video Surveillance PTZ IP Cameras
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o When considering software upgrades , customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories page , to determine exposure and a complete
upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
providers.
Fixed Releases
At the time of publication, Cisco Video Surveillance 8000 Series IP Camera
firmware releases 1.0.9-8 and later contained the fix for this
vulnerability.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
To download the firmware from the Software Center on Cisco.com, do the
following:
1. Click Browse all.
2. Choose Connected Safety and Security > Video Surveillance IP Cameras >
Video Surveillance 8000 Series IP Cameras .
3. Choose the appropriate IP camera model.
4. Click Video Surveillance 8000 Series IP Camera Firmware.
5. Choose a release from the left pane of the product page.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerability that is
described in this advisory.
Source
o Cisco would like to thank Qian Chen of Qihoo 360 Nirvan Team for reporting
this vulnerability.
Cisco Security Vulnerability Policy
o To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy . This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcameras-dos-9zdZcUfq
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-JAN-13 |
+----------+---------------------------+----------+--------+--------------+
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