Linux Security Breach
A security assessment turned into an incident response after a malicious binary was found on a cluster of reverse gateways/load balancers, highlighting Linux security vulnerabilities.
Key points
- A security assessment for a client's cluster of 100+ reverse gateways/load balancers uncovered a malicious binary.
- The gateways run a custom Linux stack with a monolithic compiled kernel and a static GOlang application.
- The malicious binary was found during an investigation into the gateways' custom Linux stack.
- The incident highlights the importance of Linux security and GDPR compliance.
- The investigation started with a focus on privacy issues and GDPR compliance, but shifted to the gateways after a request from the client.
A recent security assessment for a client's cluster of reverse gateways/load balancers turned into an incident response after a malicious binary was discovered. The assessment was initially focused on privacy issues and GDPR compliance, but the client requested that the investigator, a security researcher, first examine the gateways. The gateways run a custom Linux stack, consisting of a monolithic compiled kernel and a static GOlang application, which serves as both an init replacement and the reverse gateway software. The investigator created a test environment to examine the gateways and discovered the malicious binary during the investigation. The incident highlights the importance of Linux security and GDPR compliance, particularly in custom Linux environments.
Sources
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