CVE-2023-44483 : Security Advisory and Response

Apache Santuario: Private Key disclosure in debug-log output

Understanding CVE-2023-44483

This CVE affects Apache Santuario - XML Security for Java versions prior to 2.2.6, 2.3.4, and 3.0.3, when utilizing the JSR 105 API.

What is CVE-2023-44483?

All versions of Apache Santuario are vulnerable to an issue where a private key may be exposed in log files when generating an XML Signature and logging with debug level is enabled. Users are advised to upgrade to version 2.2.6, 2.3.4, or 3.0.3 to resolve this issue.

The Impact of CVE-2023-44483

The vulnerability could lead to the exposure of sensitive private key information in log files, posing a risk to the security and confidentiality of cryptographic operations.

Technical Details of CVE-2023-44483

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The issue arises in Apache Santuario - XML Security for Java versions before 2.2.6, 2.3.4, and 3.0.3, allowing private keys to be leaked in log files during XML Signature generation with debug logging enabled.

Affected Systems and Versions

Product: Apache Santuario
Vendor: Apache Software Foundation
Affected Versions: 2.2, 2.3, 3.0
Fixed Versions: 2.2.6, 2.3.4, 3.0.3

Exploitation Mechanism

The vulnerability is exploited by leveraging the JSR 105 API, where debug log information inadvertently reveals private key content.

Mitigation and Prevention

Protect your systems from this vulnerability by following the recommended mitigation strategies.

Immediate Steps to Take

Users should upgrade their Apache Santuario - XML Security for Java installations to versions 2.2.6, 2.3.4, or 3.0.3 to eliminate the risk of private key exposure.

Long-Term Security Practices

Ensure that debug logging is properly configured to avoid exposing sensitive information in log files. Regularly monitor and update cryptographic libraries to stay protected against known vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches and updates released by Apache Santuario to address potential security weaknesses.