What we test in Java projects
Spring Security, Actuator endpoints, Jackson deserialization, JPA security and custom authorization logic.
Deserialization RCE, path traversal issues, XXE attacks, JNDI injection and Log4Shell-style exploits.
Tomcat, WildFly, WebLogic misconfigurations, JMX exposures and servlet security.
Java is the leading enterprise programming language and powers critical backend systems in banks, insurance companies, government and Fortune 500 enterprises. This massive adoption in high-security segments makes Java a preferred target: Deserialization RCE, Spring Actuator exploits, path traversal bypasses, XXE attacks and vulnerable dependencies (Log4Shell) regularly lead to critical vulnerabilities - from data breaches to server takeovers and full infrastructure compromise.
Java Deserialization & RCE Unsafe deserialization via ObjectInputStream, vulnerable libraries (Apache Commons Collections, Jackson) and JNDI injection attacks - Java deserialization is the most critical RCE vector in the Java ecosystem.
Spring Boot Actuator & Info Disclosure Exposed Actuator endpoints (/heapdump, /env, /mappings) reveal infrastructure details, credentials and enable SSRF/RCE - Spring Boot misconfigurations are a classic vulnerability.
Log4Shell & Vulnerable Dependencies Log4Shell (CVE-2021-44228) was just the beginning - the massive dependency tree of Java projects (Maven/Gradle) is vulnerable to known CVEs. OWASP Dependency Check only finds a fraction.
We deliver prioritized results with PoC code, concrete fix recommendations for your dev team and - if desired - management summaries for stakeholders and compliance audits.
A penetration test for a Java application can vary depending on the scope and complexity of the application. A simple test can be carried out from €5,000 onwards. For larger applications or applications with high protection requirements, the price can be €20,000 or more. The price also depends on whether it is a web application, a mobile application or a desktop application.
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In the past, we have frequently worked with Java applications from both a software and security perspective. These occur very frequently in bug bounty programs.
Our report empowers your employees to understand what the actual problem is and how to best solve it - not just security vulnerabilities, but problem areas in general.
We don't just work through the OWASP Top 10 - hacking is a creative process, we leverage this to discover things that others wouldn't find because they're only following a process.
Protect your business through targeted testing that minimizes potential security risks and secures your IT infrastructure. Black hats and cybercriminals usually don't take long to appear and exploit every weakness.
We adapt our communication to your needs, whether through regular updates, detailed meetings or clear explanations. It doesn't matter whether via WhatsApp, Signal or Slack. You decide!
Rely on a long-term collaboration that offers not just one-time tests, but continuous security optimizations and support. We can take any perspective and are your partner when it comes to security.
Java pentests uncover a broad spectrum of vulnerabilities - from deserialization RCE to Spring Actuator exploits, XXE attacks, path traversal issues and the OWASP Top 10.
Unsafe deserialization via ObjectInputStream, gadget chains (Apache Commons Collections, Spring), JNDI injection attacks and vulnerable Jackson configurations lead to remote code execution.
Exposed Actuator endpoints (/heapdump, /env, /mappings, /jolokia) reveal credentials, enable SSRF attacks and can lead to RCE - Spring Boot misconfigurations are critical.
Path traversal via file APIs, URL decoding bypasses, Unicode normalization issues and null byte injection - Java is particularly vulnerable to normalization bypasses.
XML external entity attacks in XML parsers (DocumentBuilder, SAXParser), SOAP service exploits and DTD processing issues - Java XML processing is vulnerable to XXE.
Log4Shell (CVE-2021-44228) is just the tip of the iceberg - vulnerable Maven/Gradle dependencies (Struts, Jackson, Spring) regularly lead to known CVE exploits with RCE impact.
Misconfigured security chains, custom AuthenticationProvider bypasses, method security issues (@PreAuthorize bypasses) and JWT vulnerabilities in Spring Boot apps.
The price depends on complexity - simple Spring Boot APIs vs. enterprise monoliths with complex application servers, custom security logic and extensive Maven dependencies.
For simple Spring Boot REST APIs
For enterprise monoliths & critical backends
Our Mini Pentest for Java tests deserialization exploits, XML External Entity (XXE), insecure JVM configurations and authentication bypasses. Perfect for enterprise Java apps or legacy systems before major updates.
Focused examination of the most critical vulnerabilities
Transparent fixed price - no hidden costs
Fast, actionable reporting as ticket list
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A large part of the internet is based on websites and web applications.
Modern websites and SPAs usually communicate with some kind of API.
Fully automated vulnerability scanning for your IT infrastructure or application.
We've had the privilege of working with some of the world's leading companies and strengthening their IT security.
The kickoff meeting is very important to understand what the customer wants and what drives them. We analyze all information provided to us, assemble an appropriate team and plan the test in detail.
Kickoff meeting, scoping, information gathering, conducting the actual test, reporting and final meeting. This is the classic approach for a penetration test.
Most Java applications can be tested very well within a maximum of 2 weeks. Ultimately, it depends on the size and complexity of the application.
Of course - unless you want to save costs and a detailed list of all findings including PoC is sufficient for you.
Configuration issues, injections, XSS, path traversals, IDOR - essentially everything defined in the OWASP Top 10.
Yes, data protection is important to us. Best of all, we have no access to relevant data at all. This means that when preparing for such a test, problems of this kind can be ruled out.
This should also be possible - it depends on what these adjustments look like and whether they fit within the scope of the test.
We are creative. Our team consists of people who hack large corporations every day - voluntarily. We have extensive experience with complex attack scenarios and know exactly how to proceed to bypass protective mechanisms. For us, a pentest is always a manual process supported by tools.
Have questions about our services? We'd be happy to advise you and create a customized offer.
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