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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2015-08-25T17:00:00

Updated: 2024-08-06T06:04:02.680Z

Reserved: 2015-05-18T00:00:00

Link: CVE-2015-4020

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2015-08-25T17:59:01.760

Modified: 2017-12-09T02:29:04.637

Link: CVE-2015-4020

cve-icon Redhat

Severity : Important

Publid Date: 2015-05-18T00:00:00Z

Links: CVE-2015-4020 - Bugzilla