CVE-2013-5566 Denial of service in n/a
Remote attackers can cause denial of service on Cisco MDS switches by sending crafted VRRP frames with AH authentication, consuming supervisor CPU resources.
- 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-2013-5566?
CVE-2013-5566 is a medium-severity denial of service vulnerability in Cisco Nx-Os, published on 8 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.
Weakness: CWE-119
Which versions are affected by CVE-2013-5566?
It affects 1 product.
Products include Cisco Nx-Os.
How do I fix CVE-2013-5566?
No fix has been published for CVE-2013-5566 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-2013-5566 being exploited?
There is no known exploitation of CVE-2013-5566 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-j3xh-96gv-642p.