RubySec

Providing security resources for the Ruby community

CVE-2017-0902 (rubygems-update): RubyGems DNS request hijacking vulnerability

ADVISORIES

GEM

rubygems-update

LIBRARY

RubyGems

SEVERITY

CVSS v3.x: 8.1 (High)

CVSS v2.0: 6.8 (Medium)

PATCHED VERSIONS

  • >= 2.4.5.3
  • >= 2.5.2.1
  • >= 2.6.13

DESCRIPTION

RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to down load and install gems from a server that the attacker controls.