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high7.5Public exploit code

CVE-2013-0156

active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.

Affected products

VendorProductAffected versions
RubyonrailsRails
from 3.2.0 before 3.2.11
RubyonrailsRuby On Rails
before 2.3.15
from 3.0.0 before 3.0.19
from 3.1.0 before 3.1.10
DebianDebian Linux
Versions 6.0, 7.0

Weakness classification

CWE-20

References