CVE-2018-0272 Denial of service in Cisco Firepower Threat Defense
Unauthenticated remote attackers can cause denial of service by sending crafted SSL traffic, leading to high CPU utilization on Cisco Firepower devices.
- 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-2018-0272?
CVE-2018-0272 is a medium-severity denial of service vulnerability in Cisco Firepower Threat Defense, published on 19 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the Secure Sockets Layer (SSL) Engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper error handling while processing SSL traffic. An attacker could exploit this vulnerability by sending a large volume of crafted SSL traffic to the vulnerable device. A successful exploit could allow the attacker to degrade the device performance by triggering a persistent high CPU utilization condition. Cisco Bug IDs: CSCvh89340.
Which versions are affected by CVE-2018-0272?
It affects 1 product.
Products include Cisco Firepower.
How do I fix CVE-2018-0272?
No fix has been published for CVE-2018-0272 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-2018-0272 being exploited?
There is no known exploitation of CVE-2018-0272 in the wild and no public exploit code.
Other vulnerabilities in Cisco Firepower Threat Defense
Sources
Also known as GHSA-gg84-j6g5-hr53.