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AUSCERT External Security Bulletin Redistribution
ESB-2021.1907
Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link
Layer Discovery Protocol Memory Leak Vulnerabilities
3 June 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Video Surveillance 7000 Series IP Cameras
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1564 CVE-2021-1563
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcamera-lldpcdp-mem-yTQDmjRO
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Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer
Discovery Protocol Memory Leak Vulnerabilities
Priority: Medium
Advisory ID: cisco-sa-ipcamera-lldpcdp-mem-yTQDmjRO
First Published: 2021 June 2 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvy12638
CVE Names: CVE-2021-1563 CVE-2021-1564
CWEs: CWE-400
Summary
o Multiple vulnerabilities in the implementation of the Cisco Discovery
Protocol and Link Layer Discovery Protocol (LLDP) for Cisco Video
Surveillance 7000 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.
These vulnerabilities are due to incorrect processing of certain Cisco
Discovery Protocol and LLDP packets at ingress time. An attacker could
exploit these vulnerabilities by sending crafted Cisco Discovery Protocol
or LLDP 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 and LLDP are Layer 2 protocols. To exploit
these vulnerabilities, an attacker must be in the same broadcast domain as
the affected device (Layer 2 adjacent).
Cisco has released software updates that address these vulnerabilities.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcamera-lldpcdp-mem-yTQDmjRO
Affected Products
o Vulnerable Products
At the time of publication, these vulnerabilities affected Cisco Video
Surveillance 7000 Series IP Cameras firmware releases earlier than Release
2.12.3.
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 these vulnerabilities.
Cisco has confirmed that these vulnerabilities do 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 8000 Series IP Cameras
Video Surveillance PTZ IP Cameras
Workarounds
o There are no workarounds that address these vulnerabilities.
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 7000 Series IP Cameras
firmware releases 2.12.3 and later contained the fix for these
vulnerabilities.
To download the firmware updates from the Software Center on Cisco.com,
click Browse all , choose Connected Safety and Security > Video
Surveillance IP Cameras > Video Surveillance 7000 Series IP Cameras , and
then choose the correct camera model.
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 vulnerabilities that are
described in this advisory.
Source
o Cisco would like to thank Qian Chen of Qihoo 360 Nirvan Team for reporting
these vulnerabilities.
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-ipcamera-lldpcdp-mem-yTQDmjRO
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-JUN-02 |
+----------+---------------------------+----------+--------+--------------+
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