Executive Summary

This vulnerability in Apache APISIX's basic-auth plugin causes sensitive data exposure by logging plaintext usernames and passwords to error logs and log sinks when the log level is set to INFO or DEBUG. This means that credentials can be compromised if unauthorized users gain access to these logs. [2]

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Impact Analysis

The vulnerability can lead to credential compromise because sensitive usernames and passwords are stored in plaintext within logs. If an attacker or unauthorized party accesses these logs, they can obtain valid credentials, potentially leading to unauthorized access to systems or data. [2]

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Detection Guidance

You can detect this vulnerability by checking your Apache APISIX logs for plaintext usernames and passwords in error logs when the log level is set to INFO or DEBUG. Specifically, search the error logs for basic-auth credentials exposure. For example, use commands like: grep -i 'basic-auth' /path/to/apisix/logs/error.log or grep -E 'username|password' /path/to/apisix/logs/error.log to identify sensitive data exposure. [2]

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Mitigation Strategies

Immediate mitigation steps include upgrading Apache APISIX to version 3.14, which contains the fix for this vulnerability. Additionally, avoid setting the log level to INFO or DEBUG in production environments to prevent sensitive data from being logged. Review and restrict access to existing logs that may contain exposed credentials. [2]

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