description: No authentication/authorization is enforced when a server attempts to join a quorum in Apache ZooKeeper before 3.4.10, and 3.5.0-alpha through 3.5.3-beta. As a result an arbitrary end point could join the cluster and begin propagating counterfeit changes to the leader.
problem types: Gain Privilege
affected:
{
product: Apache ZooKeeper
vendor: Apache Software Foundation
versions:
status: affected, version: Apache ZooKeeper prior to 3.4.10, Apache ZooKeeper 3.5.0-alpha through 3.5.3-beta
}