CVE-2018-5505 Denial of service in BIG-IP (ASM and Analytics)
Attackers can cause a denial of service by triggering TMM restarts via DNS requests on F5 BIG-IP systems with specific ASM and AVR configurations.
- 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-2018-5505?
CVE-2018-5505 is a medium-severity denial of service vulnerability in F5 Big-Ip Analytics, published on 22 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On F5 BIG-IP versions 13.1.0 - 13.1.0.3, when ASM and AVR are both provisioned, TMM may restart while processing DNS requests when the virtual server is configured with a DNS profile and the Protocol setting is set to TCP.
Which versions are affected by CVE-2018-5505?
It affects 2 products.
Products include F5 Big-Ip Analytics, F5 Big-Ip Application Security Manager.
How do I fix CVE-2018-5505?
No fix has been published for CVE-2018-5505 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-2018-5505 being exploited?
There is no known exploitation of CVE-2018-5505 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Analytics
Sources
Also known as GHSA-49gj-9j85-2xwr.