Heartbleed Vulnerability Tester

Check every web server misconfiguration and avoid heartbleed vulnerabilities in any SSL/TLS certificate.

  • Detect automatically OpenSSL attack vectors in your web application with ease
  • Get extensive reports with mitigation solutions for each vulnerability and integrate with more than 20 systems and tools
  • Fast security assessment with low false positives
  • Automated online SaaS heartbleed vulnerability testing


Heartbleed scanner features

Detecting intruders and assessing the real exploitation attempts and successes of the Heartbleed issue are challenging since the assaults leave no traces in the logs. Now with Crashtest Security, you have a quick and easy way to avoid these problems by securing your web app.


Create and verify your scan target.



Configure the credentials for the system and the application.


CI Integration

Create a webhook and start a scan via the CI Integration.


Set notifications

Integrate a chat notification system (Slack, Mattermost, Hangouts, and many more.)


Download the report

Get reports with remediation guidance, risk assessments, and solutions for every vulnerability discovered.



Heartbleed vulnerability testing benefits

  • Download PDF, JSON/XML, and CSV reports and share them effortlessly with colleagues, executives, and clients.
  • Reduce your vulnerability to hacking and protect your users from the OWASP Top 10 vulnerabilities.
  • Scan and evaluate the security of third-party components in your online application.
  • Analyze APIs and Microservices security with an automated tool.
  • Integrate our vulnerability scanner into your development process and workflow with ease.


Heartbleed bug reports

The Heartbleed report demonstrates how our automated tool tests, finds, classifies, and recommends fixes for vulnerabilities while saving hours of human security checks and pentest money.

Extensive Vulnerability Findings

The report begins with a vulnerability overview of the scan target, the severity of the disclosed vulnerabilities, and a checklist of exploited attack vectors and scanner status.

Remediation Advice

Each discovered vulnerability has a risk categorization, an explanation, and recommendations for resolving the problem.

Checklist of Findings

Track which exposures have previously been corrected or reported.

Continuous Security

More reasons for continuous Heartbleed bug testing

Automated Pentesting

Perform regular black box pentests on your web assets and spend less on infrequent manual penetration tests.

Cybersecurity Risk Reduction

Benchmark your next release against OWASP Top 10 and other known vulnerabilities.

Schedule Scans

Match vulnerability scanning to your agile dev cycle.

Ensure Compliance

Scan every new release before deployment and ensure compliance with regulations and standards (HIPAA, GDPR, ISO, and many more).

Faster Vulnerability Detection

Detect and mitigate vulnerabilities quicker by scanning your web assets regularly.

Integrated Dev Pipeline

Integrate vulnerability scanning into your dev process and environment and shift security left.


Heartbleed Scanner

How to prevent Hearbleed?

First of all, you need to update OpenSSL to the latest version. The following versions fixed the Heartbleed vulnerability:

OpenSSL 1.0.1g
OpenSSL 1.0.0 (not affected)
OpenSSL 0.9.8 (not affected)
E.g., run:

apt-get update; apt-get upgrade # Debian / Ubuntu
yum update # RHeL / CentOS
pacman -Syu # Arch Linux

This step is key because if you’re running vulnerable versions of OpenSSL, the risk of attacks remains.

How did the Heartbleed attack start?

In late 2011, the 31-year-old German engineer Robin Seggelmann contributed the defective Heartbeat functionality to an experimental version of OpenSSL, which lacked a validation method for a variable containing a length. Then its features were sent to OpenSSL for evaluation. However, the developer there missed the flaws as well.

When do the vulnerable versions of OpenSSL start?

Before the problem was found and published, vulnerable versions of OpenSSL had been circulating for more than two years – since March 2012. As a result, computers running previous versions of OpenSSL (before 1.0.1) were unaffected.