CVEs-PoC/2018/CVE-2018-19976.md

CVE-2018-19976

Description

In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.

POC

Reference

• https://bnbdr.github.io/posts/extracheese/
• https://github.com/VirusTotal/yara/issues/999
• https://github.com/bnbdr/swisscheese/

Github

• https://github.com/bnbdr/swisscheese