CVE-2024-34111 Overview
CVE-2024-34111 is a Server-Side Request Forgery (SSRF) vulnerability affecting Adobe Commerce and Magento Open Source. The flaw exists in versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier. A low-privilege authenticated attacker can inject arbitrary URLs to force the application to make server-side requests. Successful exploitation leads to arbitrary file system read on the host running the vulnerable Commerce instance. The issue is mapped to CWE-918: Server-Side Request Forgery and does not require user interaction to exploit.
Critical Impact
Authenticated attackers can read arbitrary files from the server, harvest cloud metadata, and pivot to internal services accessible from the Commerce host.
Affected Products
- Adobe Commerce 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier
- Adobe Commerce Webhooks
- Magento Open Source (equivalent versions)
Discovery Timeline
- 2024-06-13 - CVE-2024-34111 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-34111
Vulnerability Analysis
The vulnerability resides in a Commerce component that accepts a user-supplied URL and issues a server-side HTTP request without adequately validating the destination. Because the request originates from the Commerce application server, it can reach resources not exposed to the public internet, including internal services and the local file system through URL schemes such as file://.
An attacker with a low-privilege authenticated account, such as a customer or limited backend user, submits crafted input containing an arbitrary URL. The Commerce backend fetches the referenced resource and returns or processes its contents. This turns the server into a proxy for attacker-directed requests and enables arbitrary file system read on the host.
The impact extends beyond simple content disclosure. Attackers can retrieve configuration files such as app/etc/env.php, which stores database credentials and cryptographic keys, and access cloud metadata endpoints on hosted deployments. The exploit prediction score for this issue is elevated relative to the broader CVE population, reflecting its practicality against exposed storefronts.
Root Cause
The root cause is missing URL validation and scheme filtering in a request-handling code path. The application trusts an attacker-controlled URL parameter and passes it to an HTTP client without enforcing an allowlist of destinations or blocking non-HTTP schemes. This pattern matches the classic definition of [CWE-918].
Attack Vector
Exploitation is remote over the network and requires only a low-privilege authenticated account. No user interaction is needed. The attacker submits an HTTP request to a vulnerable Commerce endpoint with a controlled URL, and the server dereferences it. Detailed exploitation mechanics are described in the Adobe Security Advisory APSB24-40.
Detection Methods for CVE-2024-34111
Indicators of Compromise
- Outbound HTTP requests from the Commerce application server to internal IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) or link-local addresses such as 169.254.169.254.
- Application logs showing requests containing non-HTTP schemes (file://, gopher://, dict://) in parameters that accept URLs.
- Access to sensitive files such as app/etc/env.php or /etc/passwd correlated with authenticated low-privilege sessions.
Detection Strategies
- Enable verbose request logging for Commerce webhook and integration endpoints, and hunt for URL parameters pointing to loopback, private, or metadata addresses.
- Correlate authenticated Commerce sessions with anomalous outbound connections initiated by the PHP-FPM or web server process.
- Deploy web application firewall rules that flag URL parameters containing file://, internal RFC1918 targets, or cloud metadata IPs.
Monitoring Recommendations
- Baseline expected outbound destinations for the Commerce host and alert on deviations.
- Monitor for spikes in HTTP 4xx/5xx responses returned to authenticated users interacting with webhook or integration APIs.
- Instrument egress firewalls to block Commerce servers from reaching cloud metadata endpoints unless explicitly required.
How to Mitigate CVE-2024-34111
Immediate Actions Required
- Apply the Adobe security update referenced in APSB24-40 to all Adobe Commerce and Magento Open Source instances.
- Audit user accounts and revoke unnecessary low-privilege authenticated access, particularly test and legacy accounts.
- Rotate credentials and secrets stored in app/etc/env.php if SSRF exploitation is suspected.
Patch Information
Adobe released fixed builds for Commerce 2.4.7-p1, 2.4.6-p6, 2.4.5-p8, and 2.4.4-p9, as documented in the Adobe Security Advisory APSB24-40. Upgrade to the corresponding patched release for your deployment track. Confirm the patch level using bin/magento --version after deployment.
Workarounds
- Restrict Commerce egress traffic at the network layer, blocking access to internal ranges and cloud metadata IPs such as 169.254.169.254.
- Place the Commerce admin and webhook endpoints behind a WAF that filters URL parameters for non-HTTP schemes and private-network targets.
- Enforce least-privilege on customer and integration accounts to reduce the pool of attackers able to authenticate.
# Example egress hardening on the Commerce host
iptables -A OUTPUT -d 169.254.169.254 -j REJECT
iptables -A OUTPUT -d 10.0.0.0/8 -p tcp --dport 80 -j REJECT
iptables -A OUTPUT -d 172.16.0.0/12 -p tcp --dport 80 -j REJECT
iptables -A OUTPUT -d 192.168.0.0/16 -p tcp --dport 80 -j REJECT
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
