CVE-2024-34102: Adobe Commerce XXE Vulnerability

CVE-2024-34102 Overview

Adobe Commerce versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in arbitrary code execution. An attacker could exploit this vulnerability by sending a crafted XML document that references external entities. Exploitation of this issue does not require user interaction.

Critical Impact
A successful exploitation could lead to arbitrary code execution without user interaction, significantly compromising system integrity.

Affected Products

Adobe Commerce
Adobe Commerce Webhooks
Adobe Magento

Discovery Timeline

Not Available - Vulnerability discovered by Not Available
Not Available - Responsible disclosure to Adobe
Not Available - CVE CVE-2024-34102 assigned
Not Available - Adobe releases security patch
2024-06-13 - CVE CVE-2024-34102 published to NVD
2025-10-23 - Last updated in NVD database

Technical Details for CVE-2024-34102

Vulnerability Analysis

The vulnerability stems from improper handling of XML input by the affected Adobe Commerce components, allowing attackers to include external XML entities. This can be leveraged through crafted XML payloads to execute arbitrary commands on the server, posing a critical risk due to its network attack vector and lack of required privileges or user interaction.

Root Cause

The vulnerability is caused by insufficiently restrictive parsing of XML data, allowing external entity references to be invoked maliciously.

Attack Vector

Network

xml

<!-- Example sanitized entity in XML -->
<!DOCTYPE exploit [
  <!ENTITY xxe SYSTEM "file:///etc/passwd">
]>
<exploit>&xxe;</exploit>

Detection Methods for CVE-2024-34102

Indicators of Compromise

Unusual outbound network traffic
Unexpected execution of commands
Unauthorized access to sensitive files

Detection Strategies

Implement detection using an Intrusion Detection System (IDS) to monitor and flag XML payloads containing DOCTYPE declarations and external entity references.

Monitoring Recommendations

Regularly audit network traffic for signs of exploitation attempts, particularly focusing on anomalous XML requests and file access patterns.

How to Mitigate CVE-2024-34102

Immediate Actions Required

Apply the latest security patches provided by Adobe promptly.
Disable XML external entity support in all XML parsers wherever feasible.
Monitor systems for signs of compromise continuously.

Patch Information

Refer to Adobe's security advisory for detailed patch instructions: Adobe Security Bulletin.

Workarounds

Use a secure XML parser configuration to disable DOCTYPE declarations:

bash

# Example configuration disabling DOCTYPE
xml_parser_configuration() {
  parser.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
  parser.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
}