CVE-2020-27716 Denial of service in BIG-IP APM
Attackers can cause a denial of service by sending specific traffic to BIG-IP APM virtual servers, crashing the Traffic Management Microkernel.
- 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-2020-27716?
CVE-2020-27716 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 24 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On versions 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when a BIG-IP APM virtual server processes traffic of an undisclosed nature, the Traffic Management Microkernel (TMM) stops responding and restarts.
Which versions are affected by CVE-2020-27716?
It affects 1 product.
Products include F5 Big-Ip Access Policy Manager.
How do I fix CVE-2020-27716?
No fix has been published for CVE-2020-27716 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-2020-27716 being exploited?
There is no known exploitation of CVE-2020-27716 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Access Policy Manager
- CVE-2023-46747 F5 BIG-IP Configuration Utility Authentication Bypass
- CVE-2022-1388 F5 BIG-IP Missing Authentication
- CVE-2021-22986 F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution
- CVE-2021-22991 F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- CVE-2020-5902 F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution
Sources
Also known as GHSA-7534-f3f3-w6x8.