CVE-2012-5717 Denial of service in n/a

Medium 6.3 Published 18 Jan 2013 Updated 6 Aug 2024

Remote authenticated users can crash Cisco ASA devices by establishing multiple SSH sessions, causing a denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2012-5717?

CVE-2012-5717 is a medium-severity denial of service vulnerability in Cisco Adaptive Security Appliance, published on 18 Jan 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Cisco Adaptive Security Appliances (ASA) devices with firmware 8.x through 8.4(1) do not properly manage SSH sessions, which allows remote authenticated users to cause a denial of service (device crash) by establishing multiple sessions, aka Bug ID CSCtc59462.

Weakness: CWE-264

Which versions are affected by CVE-2012-5717?

It affects 4 products.

Products include Cisco Adaptive Security Appliance, Cisco Adaptive Security Appliance Software, Cisco Asa 1000v Cloud Firewall, Cisco Asa 5500.

How do I fix CVE-2012-5717?

No fix has been published for CVE-2012-5717 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-2012-5717 being exploited?

There is no known exploitation of CVE-2012-5717 in the wild and no public exploit code.

All Cisco Adaptive Security Appliance vulnerabilities

Sources

Also known as GHSA-277q-9jj6-mg2v.