Improper Input Validation in ImageMagick (CVE‑2016‑3714) Enables Remote Code Execution
What It Is – ImageMagick’s EPHEMERAL, HTTPS, MVG, MSL, TEXT, SHOW, WIN and PLT coders fail to properly sanitise input. A crafted image can inject shell metacharacters, giving an unauthenticated attacker the ability to execute arbitrary commands on the host.
Exploitability – Publicly disclosed; proof‑of‑concept code exists. No known active exploit campaign, but the vulnerability is trivial to weaponise. CVSS v3.1 base score 7.5 (High).
Affected Products – ImageMagick (all versions prior to the 6.9.7‑10 release). The library is embedded in many web‑applications, SaaS platforms, CI pipelines, and on‑premise image‑processing services.
Why It Matters for Trust & Control Assurance
- Vulnerability Management – Demonstrates the need for continuous inventory of third‑party components and timely patching, a core control objective that maps to dozens of frameworks (e.g., NIST CSF Identify and Protect).
- Secure Configuration – Highlights gaps when default coders are left enabled without hardening; evidence of configuration reviews is essential for audit readiness.
- Defensible Evidence – Organizations that can produce up‑to‑date component inventories and patch‑status logs can substantiate due‑diligence to regulators and enterprise buyers.
Recommended Actions
- Inventory – Locate every system that includes ImageMagick (servers, containers, CI runners).
- Patch – Upgrade to ImageMagick 6.9.7‑10 or later; apply vendor‑supplied patches immediately.
- Hardening – Disable unused coders (EPHEMERAL, HTTPS, etc.) via the policy.xml configuration.
- Monitor – Add the CVE to your vulnerability‑scanning feed and set up alerts for any re‑appearance in future scans.
- Document – Capture upgrade and configuration changes as evidence for audit trails.
Source: CISA KEV – CVE‑2016‑3714