AWS ALB listeners should be configured with a strong security policy

firetail:aws-alb-ssl-listener-weak-ssl

Type:

CSPM

Rule Severity:

Medium

The Application Load Balancer (ALB) has one or more listeners configured with a weak security policy.

This increases the likelihood of vulnerabilities being exploited, such as outdated encryption protocols or weak ciphers, putting sensitive data at risk during transmission. Weak security policies may also result in non-compliance with industry standards and regulatory requirements.

Remediation

Update the Application Load Balancer listeners to use AWS's predefined security policies that enforce strong encryption protocols and ciphers

Example Attack Scenario

An attacker intercepts network traffic between a client and a service running behind the ALB. With weak encryption enabled (e.g., SSL 3.0), the attacker can use known vulnerabilities in outdated protocols to decrypt sensitive information, such as authentication credentials or payment details. This can lead to data breaches or unauthorized access.

How to Identify with Example Scenario

How to Resolve with Example Scenario

How to Identify with Example Scenario

Find the text in bold to identify issues such as these in API specifications

How to Resolve with Example Scenario

Modify the text in bold to resolve issues such as these in API specifications
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