cbcvebase.
CVE-2013-6414
published 2013-12-07

CVE-2013-6414: actionpack/lib/action_view/lookup_context.rb in Action View in Ruby on Rails 3.x before 3.2.16 and 4.x before 4.0.2 allows remote attackers to cause a denial…

PriorityP336medium5CVSS 2.0
AVNACLAuNCNINAP
EXPLOIT
EPSS
20.70%
97.3th percentile
actionpack/lib/action_view/lookup_context.rb in Action View in Ruby on Rails 3.x before 3.2.16 and 4.x before 4.0.2 allows remote attackers to cause a denial of service (memory consumption) via a header containing an invalid MIME type that leads to excessive caching.

Affected

56 ranges· showing 25
VendorProductVersion rangeFixed in
actionpack_projectactionpack>= 3.0.0 < 3.2.163.2.16
actionpack_projectactionpack>= 4.0.0 < 4.0.24.0.2
debianrails
rubyonrailsrails<= 4.0.1
rubyonrailsrails
rubyonrailsrails
rubyonrailsrails
rubyonrailsrails
rubyonrailsrails
rubyonrailsrails
rubyonrailsrails
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rubyonrailsrails
rubyonrailsrails
rubyonrailsrails
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rubyonrailsrails
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rubyonrailsrails
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rubyonrailsrails
rubyonrailsrails

Detection & IOCsextracted from sources · hover to see the quote

  • Exploit vector is a specially crafted HTTP Content-Type header containing an invalid MIME type sent to a Ruby on Rails application; detect anomalous or malformed MIME type values in incoming Content-Type headers
  • The vulnerable code path is in actionpack/lib/action_view/lookup_context.rb; monitor for unbounded memory growth in Rails worker processes as an indicator of active exploitation
  • Affected versions are Rails 3.0.0 through 3.2.15 and 4.0.0 through 4.0.1; presence of these versions in a deployed application indicates exploitability
  • Upstream fix commits can be used to diff and build YARA/code-level signatures for the vulnerable vs. patched lookup_context.rb
  • ·The DoS requires a controller action to be reachable; applications with no publicly accessible Rails controller actions are not exploitable via this vector
  • ·Rails 2.3.x is not affected; only 3.0.0 and later (up to the fixed versions) are vulnerable

CVSS provenance

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv5.0MEDIUM
vendor_debian5.0LOW
vendor_redhat5.0MEDIUM
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