CVE-2024-20758: Adobe Commerce RCE Vulnerability

CVE-2024-20758 Overview

CVE-2024-20758 is a critical Improper Input Validation vulnerability affecting Adobe Commerce and Magento Open Source platforms. This vulnerability allows attackers to achieve arbitrary code execution on the underlying filesystem of affected e-commerce installations. The flaw exists in multiple versions of both Adobe Commerce and Magento Open Source, making it a significant security concern for organizations running these popular e-commerce platforms.

The vulnerability can be exploited remotely over the network without requiring user interaction, although the attack complexity is considered high. Successful exploitation could allow an attacker to execute malicious code with the privileges of the web server process, potentially leading to complete system compromise, data theft, or further lateral movement within the network.

Critical Impact

Remote attackers can achieve arbitrary code execution on the underlying filesystem without user interaction, potentially compromising e-commerce platforms and sensitive customer data.

Affected Products

• Adobe Commerce versions 2.4.6-p4, 2.4.5-p6, 2.4.4-p7, 2.4.7-beta3 and earlier
• Magento Open Source versions 2.4.6-p4, 2.4.5-p6, 2.4.4-p7, 2.4.7-beta3 and earlier
• Adobe Commerce versions 2.3.7 through 2.4.7-beta3 (including all patch releases)

Discovery Timeline

• April 10, 2024 - CVE-2024-20758 published to NVD
• April 16, 2025 - Last updated in NVD database

Technical Details for CVE-2024-20758

Vulnerability Analysis

This vulnerability stems from improper input validation (CWE-20) within the Adobe Commerce and Magento Open Source platforms. The flaw allows attackers to bypass input sanitization mechanisms and inject malicious payloads that are subsequently executed on the underlying filesystem.

The vulnerability is particularly concerning because it affects the core e-commerce infrastructure that processes customer transactions and stores sensitive data. While the attack complexity is high—requiring specific conditions or knowledge to exploit successfully—the potential impact is severe given the network-accessible nature of the attack vector and the lack of required user interaction.

E-commerce platforms like Adobe Commerce and Magento are high-value targets for attackers due to their access to payment card data, customer personally identifiable information (PII), and business-critical operations. A successful exploit could enable attackers to install web shells, steal database credentials, intercept payment information, or pivot to other systems within the network.

Root Cause

The root cause of CVE-2024-20758 is insufficient input validation within the Adobe Commerce and Magento Open Source codebase. Input validation is a critical security control that ensures user-supplied data conforms to expected formats and does not contain malicious content before being processed by the application.

When input validation is inadequate or missing, attackers can craft specially formed input that bypasses security controls and triggers unintended behavior. In this case, the improper validation allows for code execution on the filesystem, indicating that untrusted input is eventually processed in a context where it can be interpreted as executable code or commands.

Attack Vector

The attack vector for CVE-2024-20758 is network-based, meaning attackers can target vulnerable installations remotely over the internet. The vulnerability does not require any form of user interaction or authentication, which increases its exploitability in real-world scenarios.

The high attack complexity indicates that while the vulnerability exists, successfully exploiting it may require:

• Specific environmental conditions on the target system
• Precise timing or sequencing of requests
• Detailed knowledge of the target configuration
• Circumventing additional security controls

Attackers targeting this vulnerability would typically probe internet-facing Adobe Commerce or Magento installations, identify vulnerable versions, and attempt to craft payloads that satisfy the exploitation requirements. Successful attacks could result in complete compromise of the e-commerce platform and any connected systems.

Detection Methods for CVE-2024-20758

Indicators of Compromise

• Unexpected PHP files or web shells appearing in the Magento/Commerce installation directories
• Anomalous outbound network connections from the web server to unknown external hosts
• Suspicious process execution from the web server user account (e.g., www-data or apache)
• Unauthorized modifications to core Magento/Commerce files or database records
• Unusual administrative account creation or privilege changes in the admin panel

Detection Strategies

• Implement file integrity monitoring (FIM) to detect unauthorized changes to core application files and directories
• Deploy web application firewalls (WAF) with rules specifically targeting input validation bypass attempts and code injection patterns
• Monitor web server logs for suspicious requests with unusual parameters, encoded payloads, or injection patterns
• Utilize endpoint detection and response (EDR) solutions to identify anomalous process execution or file system activities on e-commerce servers

Monitoring Recommendations

• Enable detailed logging for all administrative actions and API requests within Adobe Commerce/Magento
• Configure alerting for any code execution or shell command activity originating from web server processes
• Regularly audit installed extensions and third-party modules for potential security weaknesses
• Implement network segmentation and monitor traffic between the e-commerce platform and other internal systems

How to Mitigate CVE-2024-20758

Immediate Actions Required

• Update Adobe Commerce to versions 2.4.6-p5, 2.4.5-p7, 2.4.4-p8, or 2.4.7 (stable release) or later
• Update Magento Open Source to the corresponding patched versions
• Review web server and application logs for any indicators of compromise prior to patching
• Conduct a security assessment of the e-commerce environment to identify any signs of prior exploitation
• Implement network-level protections such as WAF rules while planning the upgrade

Patch Information

Adobe has released security updates addressing this vulnerability as documented in security bulletin APSB24-18. Organizations should apply the appropriate patch based on their current version:

• For Adobe Commerce 2.4.6.x: Upgrade to 2.4.6-p5 or later
• For Adobe Commerce 2.4.5.x: Upgrade to 2.4.5-p7 or later
• For Adobe Commerce 2.4.4.x: Upgrade to 2.4.4-p8 or later
• For Adobe Commerce 2.4.7 beta: Upgrade to the stable 2.4.7 release

The same patch levels apply to Magento Open Source installations. Consult the Adobe Magento Security Advisory for complete details on affected versions and available patches.

Workarounds

• Deploy a Web Application Firewall (WAF) with strict input validation rules to filter potentially malicious requests
• Restrict network access to the e-commerce platform to only necessary IP ranges where possible
• Implement application-level monitoring to detect and block suspicious input patterns
• Consider temporarily disabling non-essential features or endpoints until patching can be completed
• Ensure all administrative interfaces are protected with strong authentication and are not directly exposed to the internet

# Example: Verify current Adobe Commerce/Magento version
php bin/magento --version

# Check for available security updates via Composer
composer show magento/product-community-edition --available

# Apply security patches (example for Composer-based installation)
composer require magento/product-community-edition=2.4.6-p5 --no-update
composer update magento/product-community-edition --with-dependencies