Improper Signature Verification in Apache CXF JAX-RS XML Security

Executive Summary

This vulnerability involves Apache CXF's JAX-RS XML Security module failing to verify that XML content is fully covered by a cryptographic signature. Attackers can exploit this by wrapping signed XML documents in unsigned content, tricking applications into treating the unsigned parts as signed.

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Detection Guidance

This vulnerability involves improper verification of cryptographic signatures in Apache CXF's JAX-RS XML Security module. To detect it, check if your system uses vulnerable versions (3.6.0 to 3.6.12, 4.1.0 to 4.1.8, or 4.2.0 to 4.2.3). Inspect XML messages for unsigned content wrapped around signed content. No specific commands are provided in the context.

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Impact Analysis

If you use Apache CXF's JAX-RS XML Security module, an attacker could manipulate XML data to bypass security checks. This may lead to unauthorized access, data tampering, or false authentication, depending on how the application processes the XML.

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Compliance Impact

This vulnerability could potentially affect compliance with GDPR and HIPAA by allowing unauthorized modifications to signed XML documents. If attackers wrap unsigned content within signed documents, applications may process incorrect or malicious data as valid, undermining integrity requirements in these regulations.

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Mitigation Strategies

Upgrade Apache CXF to versions 4.2.4, 4.1.9, or 3.6.13 or later to address the improper verification of cryptographic signatures in the JAX-RS XML Security module.

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