Zero-Day Advisory

Fortinet Discovers IBM BigInsights Zookeeper Remote DoS Vulnerability


Fortinet's FortiGuard Labs has discovered a denial of service (DoS) vulnerability in Open Source Zookeeper that affects IBM BigInsights (IBM Open Platform with Apache Hadoop).

ZooKeeper is a centralized service for maintaining configuration information, providing distributed synchronization, and providing group services.

A vulnerability is discovered in Zookeeper due to incorrectly processing specially crafted network packet. When IBM BigInsights Zookeeper is accessed behind a firewall where Jetty AdminServer is not available, it could allow an authenticated user to cause a denial of service.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Oct 04, 2017

Users should apply the solution provided by IBM.

Additional Information

Fortinet reported the vulnerability to IBM on March 10, 2017.

IBM released patch for it on October 2, 2017.


This vulnerability was discovered by Honggang Ren of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.