HomeVulnerabilityFrom Logs to Runtime Safety

From Logs to Runtime Safety

Serverless environments, leveraging providers reminiscent of AWS Lambda, provide unbelievable advantages when it comes to scalability, effectivity, and diminished operational overhead. Nevertheless, securing these environments is extraordinarily difficult. The core of present serverless security practices usually revolves round two key parts: log monitoring and static evaluation of code or system configuration. However right here is the difficulty with that:

1. Logs Solely Inform A part of the Story

Logs can observe external-facing actions, however they do not present visibility into the interior execution of features. For instance, if an attacker injects malicious code right into a serverless perform that does not work together with exterior assets (e.g., exterior APIs or databases), conventional log-based instruments won’t detect this intrusion. The attacker could execute unauthorized processes, manipulate information, or escalate privileges—all with out triggering log occasions.

2. Static Misconfiguration Detection is Incomplete

Static instruments that examine for misconfigurations are nice for detecting points reminiscent of overly permissive IAM roles or delicate atmosphere variables uncovered to the mistaken events. Nevertheless, these instruments can’t account for what occurs in real-time, detect exploitations as they occur, or detect deviations from anticipated conduct.

Actual-World Implications of the Restricted Cloud Safety Out there for Serverless Environments

Instance 1: Malicious Code Injection in a Lambda Perform

An attacker efficiently injects malicious code right into a Lambda perform, trying to spawn an unauthorized subprocess or set up a connection to an exterior IP deal with.

  • Downside: Conventional security instruments counting on log monitoring will probably miss this assault. Logs usually observe external-facing occasions like API calls or community connections, however they will not seize inside actions, reminiscent of code execution throughout the perform itself. Consequently, the attacker’s actions—whether or not manipulating information, escalating privileges, or executing unauthorized processes—stay invisible until they set off an exterior occasion like an outbound API name.
  • Resolution: To successfully detect and forestall this assault, security groups want instruments that present visibility into the perform’s inside operations in actual time. A sensor monitoring runtime exercise can determine and terminate rogue processes earlier than they escalate, providing proactive, real-time safety.
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Instance 2: Exploiting Weak Open-Supply Libraries

A Lambda perform depends on an open-source library with a identified vulnerability, which an attacker can exploit to execute distant code.

  • Downside: Whereas static evaluation instruments can flag identified vulnerabilities within the library itself, they do not have visibility into how the library is used within the runtime atmosphere. Because of this even when a vulnerability is recognized in code scans, the real-time exploitation of that vulnerability may go undetected if it would not contain an exterior occasion (reminiscent of a community request or API name).
  • Resolution: A sensor designed to watch the perform’s inside operations can detect when the library is being misused or actively exploited at runtime. By constantly analyzing perform conduct, the sensor can determine anomalous actions and block the exploit earlier than it compromises the system.

The Shift that Must Occur for 2025

Cloud security is increasing quickly, offering organizations with elevated safety and detection and response measures towards refined cloud assaults. Serverless environments want this identical sort of safety as a result of they’re constructed on the cloud.

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By shifting from reactive, log-based security measures to proactive, runtime-focused safety, security groups can start to implement trendy cloud security practices into their serverless environments.

Introducing Candy’s AWS Lambda Serverless Sensor

Recognizing the constraints of conventional security instruments, Candy Safety has developed a groundbreaking sensor for serverless environments working AWS Lambda. This sensor addresses the blind spots inherent in log-based and static evaluation strategies by providing deep, real-time monitoring of Lambda features.

Runtime monitoring and visibility

Candy’s sensor displays the runtime exercise of serverless features. By observing system calls, inside perform conduct, and interactions throughout the Lambda atmosphere, the sensor offers full visibility into how the perform is behaving at any given second.

Blocking malicious conduct in real-time

Candy identifies suspicious exercise, reminiscent of spawning unauthorized processes or connecting to exterior IPs, and blocks them earlier than hurt is finished.

Detecting anomalies in perform conduct

Candy’s Lambda sensor displays the perform’s inside operations in real-time, detects any misuse of the library, and blocks the exploit earlier than it will possibly compromise the system.

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In an age the place serverless computing is turning into the spine of cloud-native architectures, the flexibility to safe these environments in actual time is paramount. Conventional log-based and static security instruments are now not sufficient to safeguard towards refined, dynamic assaults. With Candy Safety’s revolutionary sensor, organizations now have the flexibility to proactively monitor, detect, and forestall threats in actual time—giving them the boldness to embrace serverless computing whereas retaining their environments safe.

Need to put together for 2025? Contact Candy Safety as we speak!

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