CVE-2015-4020
RubyGems Improper Input Validation vulnerability
EPSS 3.5%
描述
RubyGems 2.0.x before 2.0.17, 2.2.x before 2.2.5, and 2.3.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 of an incomplete fix for CVE-2015-3900.
如何修補 CVE-2015-4020
要修補 CVE-2015-4020,請將受影響套件升級到下列已修補版本。
- RubyGems/rubygems-update—升級至 2.0.17 或更新版本
CVE-2015-4020 正在被利用嗎?
低 — EPSS 為 3.5%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 2.0.17