CVE-2016-3714

ImageMagick is a tool many systems use to turn and manipulate images. This bug lets a malicious image trick ImageMagick into running commands on the machine, similar to how a booby-trapped document can cause a program to execute harmful actions. If your business accepts or downloads images from customers, websites, or emails, your systems could be at risk when those images are processed.

This matters if you use ImageMagick on systems that handle or transform images you do not fully control (for example, images uploaded by customers or fetched from the internet). It is not about needing special credentials—attackers can send a crafted image to trigger the flaw during image processing. The risk is highest when the vulnerable ImageMagick version is reachable by attackers through a workflow that processes untrusted images.

This is RED because confirmed real-world exploitation is documented in CISA’s KEV, and there is a weaponized implementation available. Attackers actively use this class of bug to take over servers running vulnerable ImageMagick instances, so you should prioritize patching over routine maintenance.

1. Inventory exposure

   • Identify every place ImageMagick is installed and used (servers, web hosts, build servers, desktop utilities, and containers).
   • Record the installed ImageMagick version on each system.

2. Confirm whether the system is vulnerable

   • Vulnerable ranges per the advisory:
     • ImageMagick before 6.9.3-10
     • ImageMagick 7.x before 7.0.1-1
   • If any system falls in either range, treat it as exposed.

3. Apply the fix (preferred)

   • Upgrade ImageMagick to:
     • 6.9.3-10 or later for the 6.x line
     • 7.0.1-1 or later for the 7.x line
   • Use your OS package manager to upgrade to the fixed package versions, or install the vendor-provided update.

4. If patching must be delayed (workaround)

   • Temporarily stop processing untrusted images with the vulnerable ImageMagick workflow.
   • Apply ImageMagick’s vendor mitigation guidance related to “ImageTragick” until upgrades are complete.

5. Verify and monitor

   • Re-check ImageMagick version after upgrade to confirm it is on a fixed version.
   • Watch for unexpected command execution indicators and suspicious activity around image processing services (especially web-facing upload/convert endpoints) during the transition period.

Severity is high because this is a remote code execution weakness (CWE-20) in ImageMagick’s handling of multiple coders (EPHEMERAL, HTTPS, MVG, MSL, TEXT, SHOW, WIN, PLT). The attack works by delivering a crafted image that uses shell metacharacters to cause command execution during image processing (often referred to as “ImageTragick”).

Exploitation status: listed in CISA KEV with confirmed real-world exploitation; a Metasploit module exists, indicating practical weaponization.

KEV meaning here: CISA has identified this vulnerability as actively exploited and expects organizations to apply mitigations by the stated KEV due date (2024-09-30).

Patch guidance: follow ImageMagick’s vendor changelog and ImageTragick mitigation/upgrade instructions referenced in the findings; patch availability and the fixed-version thresholds are captured in the advisory (6.9.3-10+ and 7.0.1-1+).

Note on EPSS: a very high EPSS prediction is listed, but the urgency is driven primarily by KEV real-world exploitation rather than prediction.