CVE-2015-3900
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.9 High
AI Score
Confidence
High
0.008 Low
EPSS
Percentile
82.3%
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.”
Affected configurations
References
blog.rubygems.org/2015/05/14/CVE-2015-3900.html
lists.fedoraproject.org/pipermail/package-announce/2015-August/163502.html
lists.fedoraproject.org/pipermail/package-announce/2015-August/163600.html
lists.fedoraproject.org/pipermail/package-announce/2015-August/164236.html
rhn.redhat.com/errata/RHSA-2015-1657.html
www.openwall.com/lists/oss-security/2015/06/26/2
www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
www.securityfocus.com/bid/75482
puppet.com/security/cve/CVE-2015-3900
www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-007/?fid=6356
www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900/
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.9 High
AI Score
Confidence
High
0.008 Low
EPSS
Percentile
82.3%