RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before...
Vulnerability Description
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."
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2015-3900
Credits & Attribution
No credits recorded in the NVD database.
References
- http://rhn.redhat.com/errata/RHSA-2015-1657.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163502.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163600.html
- http://www.openwall.com/lists/oss-security/2015/06/26/2
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900/
- http://www.securityfocus.com/bid/75482
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-007/?fid=6356
- http://blog.rubygems.org/2015/05/14/CVE-2015-3900.html
- https://puppet.com/security/cve/CVE-2015-3900
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164236.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.