CVE-2017-1000411 Denial of service in n/a
Attackers can crash the OpenDayLight controller by sending multiple expired flows that consume memory in the configuration datastore.
- 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-2017-1000411?
CVE-2017-1000411 is a high-severity denial of service vulnerability in n/a, published on 31 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OpenFlow Plugin and OpenDayLight Controller versions Nitrogen, Carbon, Boron, Robert Varga, Anil Vishnoi contain a flaw when multiple 'expired' flows take up the memory resource of CONFIG DATASTORE which leads to CONTROLLER shutdown. If multiple different flows with 'idle-timeout' and 'hard-timeout' are sent to the Openflow Plugin REST API, the expired flows will eventually crash the controller once its resource allocations set with the JVM size are exceeded. Although the installed flows (with timeout set) are removed from network (and thus also from controller's operations DS), the expired entries are still present in CONFIG DS. The attack can originate both from NORTH or SOUTH. The above description is for a north bound attack. A south bound attack can originate when an attacker attempts a flow flooding attack and since flows come with timeouts, the attack is not successful. However, the attacker will now be successful in CONTROLLER overflow attack (resource consumption). Although, the network (actual flow tables) and operational DS are only (~)1% occupied, the controller requests for resource consumption. This happens because the installed flows get removed from the network upon timeout.
Weakness: CWE-404
Which versions are affected by CVE-2017-1000411?
It affects 2 products.
Products include Opendaylight Opendaylight, Opendaylight Openflow.
How do I fix CVE-2017-1000411?
No fix has been published for CVE-2017-1000411 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-2017-1000411 being exploited?
There is no known exploitation of CVE-2017-1000411 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wrhh-rh53-55jj.