CVEvulnerability

CVE-2015-4020

4.3 MEDIUM Published 2015-08-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2015-08-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
Weaknesses
CWE-20

Description

RubyGems 2.0.x before 2.0.17, 2.2.x before 2.2.5, and 2.4.x before 2.4.8 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 with a domain that is suffixed with the original domain name, aka a "DNS hijack attack." NOTE: this vulnerability exists because to an incomplete fix for CVE-2015-3900.

Affected configurations

• oracle solaris 11.3 • rubygems rubygems 2.0.0 • rubygems rubygems 2.0.1 • rubygems rubygems 2.0.2 • rubygems rubygems 2.0.3 • rubygems rubygems 2.0.4 • rubygems rubygems 2.0.5 • rubygems rubygems 2.0.6 • rubygems rubygems 2.0.7 • rubygems rubygems 2.0.8 • rubygems rubygems 2.0.9 • rubygems rubygems 2.0.10 • rubygems rubygems 2.0.11 • rubygems rubygems 2.0.12 • rubygems rubygems 2.0.13 • rubygems rubygems 2.0.14 • rubygems rubygems 2.0.15 • rubygems rubygems 2.0.16 • rubygems rubygems 2.2.0 • rubygems rubygems 2.2.1 • rubygems rubygems 2.2.2 • rubygems rubygems 2.2.3 • rubygems rubygems 2.2.4 • rubygems rubygems 2.4.0 • rubygems rubygems 2.4.1 • rubygems rubygems 2.4.2 • rubygems rubygems 2.4.3 • rubygems rubygems 2.4.4 • rubygems rubygems 2.4.5 • rubygems rubygems 2.4.6 • rubygems rubygems 2.4.7

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References