CVE-2017-6162 Denial of service in BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, Websafe

Medium 5.9 Published Updated

Attackers can crash the Traffic Management Microkernel by sending specific TCP traffic, causing service disruption and potential failover in F5 BIG-IP systems.

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-2017-6162?

CVE-2017-6162 is a medium-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 27 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, Websafe software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, 11.2.1, in some cases TMM may crash when processing TCP traffic. This vulnerability affects TMM via a virtual server configured with TCP profile. Traffic processing is disrupted while Traffic Management Microkernel (TMM) restarts. If the affected BIG-IP system is configured to be part of a device group, it will trigger a failover to the peer device.

Weakness: CWE-119

Which versions are affected by CVE-2017-6162?

It affects 8 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Link Controller, F5 Big-Ip Local Traffic Manager and 2 more.

How do I fix CVE-2017-6162?

No fix has been published for CVE-2017-6162 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-2017-6162 being exploited?

There is no known exploitation of CVE-2017-6162 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-49wp-r47r-jrr5.

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