CVE-2018-0409 Denial of service in TelePresence Video Communication Server (VCS) and Expressway
An unauthenticated remote attacker can cause a denial of service in Cisco Unified Communications Manager IM&P and TelePresence VCS by sending malicious packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0409?
CVE-2018-0409 is a high-severity denial of service vulnerability in Cisco Systems, Inc. TelePresence Video Communication Server (VCS) and Expressway, published on 15 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. Cisco Bug IDs: CSCvg97663, CSCvi55947.
Which versions are affected by CVE-2018-0409?
It affects 2 products.
Products include Cisco Telepresence Video Communication Server, Cisco Unified Communications Manager Im and Presence Service.
How do I fix CVE-2018-0409?
No fix has been published for CVE-2018-0409 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-0409 being exploited?
There is no known exploitation of CVE-2018-0409 in the wild and no public exploit code.
Other vulnerabilities in Cisco Systems, Inc. TelePresence Video Communication Server (VCS) and Expressway
- CVE-2023-20105 Privilege escalation in Cisco TelePresence Video Communication Server (VCS) Expressway
- CVE-2023-20192 Cisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities
- CVE-2022-20754 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities
- CVE-2022-20755 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities
- CVE-2016-1468 Command injection in n/a
Sources
Also known as GHSA-qqxj-4rg7-qpmv.