CVEs-PoC/2017/CVE-2017-17790.md

CVE-2017-17790

Description

The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.

POC

Reference

• https://github.com/ruby/ruby/pull/1777

Github

• https://github.com/ARPSyndicate/cvemon