CVE-2024-34109 Overview
CVE-2024-34109 is an Improper Input Validation vulnerability [CWE-20] affecting Adobe Commerce and Magento Open Source. Adobe Commerce versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier are affected. Attackers with administrative privileges can leverage this flaw to execute arbitrary code in the context of the current user. Exploitation occurs over the network and does not require user interaction. Adobe disclosed and patched the issue in security bulletin APSB24-40.
Critical Impact
Authenticated attackers with admin privileges can achieve arbitrary code execution on affected Adobe Commerce and Magento storefronts, compromising confidentiality, integrity, and availability.
Affected Products
- Adobe Commerce 2.4.7 and earlier, 2.4.6-p5 and earlier, 2.4.5-p7 and earlier, 2.4.4-p8 and earlier
- Adobe Commerce Webhooks module
- Magento Open Source (equivalent version ranges through 2.4.7-b1)
Discovery Timeline
- 2024-06-13 - CVE-2024-34109 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-34109
Vulnerability Analysis
CVE-2024-34109 stems from improper input validation within Adobe Commerce. The application fails to properly validate data supplied through administrative interfaces, allowing an attacker with admin access to influence execution flow. Because Adobe Commerce runs the storefront and backend as a PHP application, successful exploitation leads to arbitrary code execution within the PHP process context. The impact spans confidentiality, integrity, and availability, giving attackers the ability to read stored credentials, alter product and pricing data, tamper with order records, or deploy web shells. The bug affects the core Adobe Commerce platform as well as the Adobe Commerce Webhooks component.
Root Cause
The root cause is insufficient validation of attacker-controlled input processed by privileged administrative functionality. Adobe's advisory APSB24-40 classifies the issue under CWE-20 (Improper Input Validation). Without strict type, format, and boundary checks, untrusted data reaches sensitive execution paths that treat it as trusted, enabling code execution primitives.
Attack Vector
The attack vector is network-based and requires an authenticated administrator session. Once authenticated, the attacker submits crafted input to a vulnerable admin endpoint. No user interaction is required from any other operator. This vector is most relevant where admin credentials are weak, shared, phished, or exposed via prior breaches, and in environments where the Magento admin panel is reachable from the public internet.
No verified proof-of-concept code is published. Refer to the Adobe Magento Security Advisory (APSB24-40) for vendor-supplied technical details.
Detection Methods for CVE-2024-34109
Indicators of Compromise
- Unexpected PHP files, particularly web shells, written under pub/, app/code/, or var/ directories on the Magento host.
- New or modified admin accounts, unfamiliar API integration tokens, or unexpected changes in app/etc/env.php.
- Outbound network connections from the PHP-FPM or webserver process to unknown external hosts.
Detection Strategies
- Audit Magento admin activity logs for anomalous configuration changes, particularly involving Webhooks, custom scripts, or import/export features.
- Monitor the webserver process tree for child processes such as sh, bash, python, or curl spawned by php-fpm or nginx, which are unusual in a hardened storefront.
- File integrity monitoring on the Magento codebase to identify unauthorized modification of PHP files between deploys.
Monitoring Recommendations
- Alert on new administrator logins from unusual geographies or IP ranges, especially followed by rapid configuration changes.
- Capture and retain webserver access logs for the /admin path (or the customized admin URL) and correlate high-volume POST requests with subsequent process anomalies.
- Forward host, webserver, and application logs to a centralized SIEM or data lake to enable cross-source correlation of admin actions and post-exploitation behavior.
How to Mitigate CVE-2024-34109
Immediate Actions Required
- Apply the patches referenced in Adobe security bulletin APSB24-40 to bring Adobe Commerce and Magento Open Source to a fixed release.
- Rotate all administrator credentials and any API keys, encryption keys, and integration tokens that could have been exposed.
- Restrict access to the Magento admin panel via IP allowlisting, VPN, or reverse-proxy authentication.
Patch Information
Adobe released fixed builds for Adobe Commerce and Magento Open Source as documented in APSB24-40. Administrators should upgrade to the patched versions listed in the advisory for each supported release train (2.4.7, 2.4.6-p6, 2.4.5-p8, 2.4.4-p9, or later). Also update the Adobe Commerce Webhooks module to a fixed release.
Workarounds
- Enforce multi-factor authentication for every administrator account to reduce the risk of credential compromise leading to exploitation.
- Limit the number of administrators and remove unused or dormant admin accounts to shrink the attack surface.
- Deploy a web application firewall in front of the storefront and block anomalous admin POST payloads while patching is scheduled.
# Verify installed Adobe Commerce / Magento version and applied patches
php bin/magento --version
composer show magento/product-community-edition
composer show magento/product-enterprise-edition
# Apply the security update via Composer, then run upgrade
composer require magento/product-community-edition=<patched-version> --no-update
composer update
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento cache:flush
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
