CVE-2017-12624 : Exploit Details and Defense Strategies

Apache CXF offers support for sending and receiving attachments using the JAX-WS or JAX-RS specifications. A vulnerability exists that allows the creation of a message attachment header, potentially leading to a Denial of Service (DoS) attack on a CXF web service provider.

Understanding CVE-2017-12624

Apache CXF supports sending and receiving attachments via JAX-WS or JAX-RS, with a vulnerability that could result in a DoS attack.

What is CVE-2017-12624?

Apache CXF vulnerability that enables the creation of a message attachment header, posing a DoS risk to web service providers.

The Impact of CVE-2017-12624

Vulnerability in Apache CXF could lead to a Denial of Service (DoS) attack on web service providers.

Technical Details of CVE-2017-12624

Apache CXF vulnerability details and affected systems.

Vulnerability Description

Crafting a message attachment header in Apache CXF can trigger a DoS attack.

Affected Systems and Versions

Product: Apache CXF
Vendor: Apache Software Foundation
Versions Affected:
Apache CXF prior to 3.1.14
Apache CXF 3.2.x prior to 3.2.1

Exploitation Mechanism

Attackers can exploit the vulnerability by creating a message attachment header exceeding 300 characters.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2017-12624 vulnerability.

Immediate Steps to Take

Update Apache CXF to versions 3.1.14 or 3.2.1 to prevent the DoS attack.
Configure the "attachment-max-header-size" property to limit message attachment header size.

Long-Term Security Practices

Regularly monitor and update Apache CXF to the latest secure versions.

Patching and Updates

Stay informed about security advisories and patches released by Apache Software Foundation.