Rule Document 1:64641

Rule Category

FILE-IMAGE -- Snort detected suspicious traffic targeting vulnerabilities found inside images files, regardless of delivery method, targeted software, or image type. (Examples include: jpg, png, gif, bmp). These rules search for malformed images used to exploit system. Attackers alter image attributes, often to include shell code, so they are susceptible to vulnerabilities when they are parsed and send commands instead of loading the image.

Alert Message

FILE-IMAGE GD Graphics Library PNG parsing buffer overflow attempt

Rule Explanation

This rule looks for specially crafted PNG file intended to exploit a buffer overflow vulnerability in the GD Graphics Library.

What To Look For

This rule fires on attempts to exploit a buffer overflow vulnerability in GD Graphics Library.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group