CVE-2015-3900
June 24, 2015
RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack."
Affected Packages
rubygems-update (RUBY):
Affected version(s) >=2.4.0 <2.4.7Fix Suggestion:
Update to version 2.4.7rubygems-update (RUBY):
Affected version(s) >=2.0.0 <2.0.16Fix Suggestion:
Update to version 2.0.16rubygems-update (RUBY):
Affected version(s) >=2.2.0 <2.2.4Fix Suggestion:
Update to version 2.2.4Related Resources (17)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
ATTACKED
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Exploit Maturity
HIGH
CVSS v2
Base Score:
5
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Weakness Type (CWE)
Reliance on Reverse DNS Resolution for a Security-Critical Action
EPSS
Base Score:
2.40
