Exposed Its Internal Infrastructure

Bob Diachenko

Bob Diachenko

Cyber Threat Intelligence Director

2 minutes read Exposed Its Internal Infrastructure - Security Discovery, company behind popular solutions to help jobseekers find jobs, and help businesses find candidates – LiveCareer, Resume-Now, my Perfect Resume, Mighty Recruiter – inadvertently exposed part of its internal infrastructure used for project tracking and project management.

On August 10, I have identified an unprotected Elasticsearch cluster with thousands of records containing sensitive information not intended for public view which appeared to belong to infrastructure team. Some tickets described migration processes to new servers with full access details and privileges preferences, while other collections included information on catalogues structure and databases and admin logins.

I have immediately notified administrators as part of our responsible disclosure protocol and received confirmation from one of the managers that “we are looking into it”. On the same day public access to an open Elasticsearch was restricted.

According to Shodan historical data for this IP Elasticsearch port (9200) was first indexed in December 2018. Additionally, Kibana interface was also set open since August last year.

It is unknown whether somebody else have accessed database while it was open, but it appears that at least one of the’s service instances (Jenkins for was targeted by GandCrab v.5.2 ransomware (good news – there is a decryptor for this version available).

Danger of having exposed Elasticsearch or similar NoSql databases is huge. I have previously reported that the lack of authentication allowed the installation of malware or ransomware on the Elasticsearch servers. The public configuration allows the possibility of cybercriminals to manage the whole system with full administrative privileges. Once the malware is in place criminals could remotely access the server resources and even launch a code execution to steal or completely destroy any saved data the server contains.


As we see a never-ending loop of these incidents, we at have decided to offer a live educational session (webinar or offline workshop) for raising cyber security awareness within your organization, to prevent potential issues in the future. We use real world examples and promote that data security is important to every employee and at every level inside the organization.

It can be an online webinar session (estimated 1h long), with Q&A session or an offline meeting in your offices, live interaction with your team (master class included).

Proposed content includes:

Please feel free to send your requests to alert(at) or bob(at)

Let’s educate your team!

← Back to Blog

Got your attention?

Stay ahead of cyber threats with Security Discovery. We offer expert consulting, comprehensive services, and a powerful vulnerability monitoring SaaS platform. Protect your business proactively - get in touch today for personalized digital security solutions.

Business Development
Virginia, United States
Research & Development
Kyiv, Ukraine
Technical HQ
Hamburg, Germany