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AUSCERT External Security Bulletin Redistribution
ESB-2017.1099
Cisco TelePresence ICMP Denial of Service Vulnerability
4 May 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco TelePresence Collaboration Endpoint
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-3825
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ctp
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Cisco Security Advisory: Cisco TelePresence ICMP Denial of Service Vulnerability
Advisory ID: cisco-sa-20170503-ctp
Revision: 1.0
For Public Release: 2017 May 3 16:00 GMT
Last Updated: 2017 May 3 16:00 GMT
CVE ID(s): CVE-2017-3825
CVSS Score v(3): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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Summary
=======
A vulnerability in the ICMP ingress packet processing of Cisco TelePresence Collaboration Endpoint (CE) Software could allow an unauthenticated, remote attacker to cause the TelePresence endpoint to reload unexpectedly, resulting in a denial of service (DoS) condition.
The vulnerability is due to incomplete input validation for the size of a received ICMP packet. An attacker could exploit this vulnerability by sending a crafted ICMP packet to the local IP address of the targeted endpoint. A successful exploit could allow the attacker to cause a DoS of the TelePresence endpoint, during which time calls could be dropped. This vulnerability would affect either IPv4 or IPv6 ICMP traffic.
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-20170503-ctp ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ctp"]
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