CVE-2016-9253 Denial of service in BIG-IP
Attackers can disrupt virtual server availability by sending specific websocket traffic patterns to F5 BIG-IP devices using the websocket profile.
- 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-2016-9253?
CVE-2016-9253 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 9 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In F5 BIG-IP 12.1.0 through 12.1.2, specific websocket traffic patterns may cause a disruption of service for virtual servers configured to use the websocket profile.
Weakness: CWE-20
Which versions are affected by CVE-2016-9253?
It affects 10 products.
Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Domain Name System and 4 more.
How do I fix CVE-2016-9253?
No fix has been published for CVE-2016-9253 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-2016-9253 being exploited?
There is no known exploitation of CVE-2016-9253 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-qp4f-rwm7-fxpr.