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CVE-2015-3900

UnknownEPSS 8.93%

Last modified

CVE-2015-3900 is a vulnerability of currently unknown severity. 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.". EPSS estimates a 8.93% chance of exploitation in the next 30 days.

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."

Metrics

EPSS Probability
8.93%

94.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Ruby-LangRuby1.9
Ruby-LangRuby1.9.1
Ruby-LangRuby1.9.2
Ruby-LangRuby1.9.3
Ruby-LangRuby2.0.0
Ruby-LangRuby2.1
Ruby-LangRuby2.1.1
Ruby-LangRuby2.1.2
Ruby-LangRuby2.1.3
Ruby-LangRuby2.1.4
Ruby-LangRuby2.1.5
Ruby-LangRuby2.2.0
RubygemsRubygems2.0.0
RubygemsRubygems2.0.1
RubygemsRubygems2.0.2
RubygemsRubygems2.0.3
RubygemsRubygems2.0.4
RubygemsRubygems2.0.5
RubygemsRubygems2.0.6
RubygemsRubygems2.0.7
RubygemsRubygems2.0.8
RubygemsRubygems2.0.9
RubygemsRubygems2.0.10
RubygemsRubygems2.0.11
RubygemsRubygems2.0.12
RubygemsRubygems2.0.13
RubygemsRubygems2.0.14
RubygemsRubygems2.0.15
RubygemsRubygems2.2.0
RubygemsRubygems2.2.1
RubygemsRubygems2.2.2
RubygemsRubygems2.2.3
RubygemsRubygems2.4.0
RubygemsRubygems2.4.1
RubygemsRubygems2.4.2
RubygemsRubygems2.4.3
RubygemsRubygems2.4.4
RubygemsRubygems2.4.5
RubygemsRubygems2.4.6
OracleSolaris11.3
RedhatEnterprise Linux6.0
RedhatEnterprise Linux7.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-3900?
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."
How severe is CVE-2015-3900?
Severity scoring for CVE-2015-3900 is pending analysis. The EPSS model estimates a 8.93% probability of exploitation in the next 30 days.
How do I fix CVE-2015-3900?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-3900?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST