Authenticated File Upload Leading to Arbitrary File Read in WildFly Core

Executive Summary

This vulnerability in WildFly Core allows a remote attacker with deployer privileges to upload and deploy a malicious archive file from an untrusted source. The attacker crafts a Java project that sends an HTTP POST request to deploy the file, potentially leading to further exploitation like arbitrary file reads.

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Detection Guidance

To detect this vulnerability, monitor WildFly server logs for unusual deployment activities, particularly HTTP POST requests from the 'deployer' account. Check for unexpected archive uploads or deployments from untrusted sources. Inspect network traffic for suspicious file upload patterns to WildFly management interfaces.

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Impact Analysis

If exploited, this vulnerability could allow an attacker to read arbitrary files on the system, escalate privileges, or perform unauthorized actions. Systems using WildFly Core with deployer accounts are at risk of unauthorized file access or deployment of malicious code.

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Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Compliance may be compromised if sensitive data is exposed due to exploitation.

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Mitigation Strategies

Immediately restrict the 'deployer' account privileges to the minimum required. Disable remote deployment capabilities if not needed. Ensure all uploaded archives are scanned for malicious content before deployment. Update WildFly-core to the latest patched version as soon as available.

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