cve/2019/CVE-2019-16201.md

CVE-2019-16201

Description

WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.

POC

Reference

• https://www.oracle.com/security-alerts/cpujan2020.html

Github

• https://github.com/MarioBarbarino/planet.rb
• https://github.com/feedreader/planet.rb