Improper input validation in Oracle Solaris
CVE-2015-4020
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.035 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Oracle Solaris — versions 11.3
- Rubygems — versions 2.0.0, 2.0.1, 2.0.2
Weakness classification (CWE)
References
- blog.rubygems.org/2015/06/08/2.2.5-released.html (Vendor Advisory)
- www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CV… (Third Party Advisory)
- www.securityfocus.com/bid/75431 (vdb-entry)
- www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-009/ (Third Party Advisory)
- blog.rubygems.org/2015/06/08/2.4.8-released.html (Vendor Advisory)
- github.com/rubygems/rubygems/commit/5c7bfb5
- puppet.com/security/cve/CVE-2015-3900
- www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html (Third Party Advisory)