Fix for CVE-2013-0155 in Rails

This commit is contained in:
Holger Just 2013-01-16 23:24:15 +01:00
parent 964d19cc57
commit b7a82ac691
1 changed files with 41 additions and 0 deletions

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@ -152,6 +152,47 @@ module ActionController
end
end
# Fix for CVE-2013-0155
# https://groups.google.com/d/msg/rubyonrails-security/kKGNeMrnmiY/r2yM7xy-G48J
# TODO: Remove this once we are on Rails >= 3.2.11
module ActiveRecord
class Base
class << self
protected
def self.sanitize_sql_hash_for_conditions(attrs, default_table_name = quoted_table_name, top_level = true)
attrs = expand_hash_conditions_for_aggregates(attrs)
return '1 = 2' if !top_level && attrs.is_a?(Hash) && attrs.empty?
conditions = attrs.map do |attr, value|
table_name = default_table_name
if not value.is_a?(Hash)
attr = attr.to_s
# Extract table name from qualified attribute names.
if attr.include?('.') and top_level
attr_table_name, attr = attr.split('.', 2)
attr_table_name = connection.quote_table_name(attr_table_name)
else
attr_table_name = table_name
end
attribute_condition("#{attr_table_name}.#{connection.quote_column_name(attr)}", value)
elsif top_level
sanitize_sql_hash_for_conditions(value, connection.quote_table_name(attr.to_s), false)
else
raise ActiveRecord::StatementInvalid
end
end.join(' AND ')
replace_bind_variables(conditions, expand_range_bind_variables(attrs.values))
end
alias_method :sanitize_sql_hash, :sanitize_sql_hash_for_conditions
end
end
end
# Backported fix for CVE-2012-3465
# https://groups.google.com/d/msg/rubyonrails-security/FgVEtBajcTY/tYLS1JJTu38J
# TODO: Remove this once we are on Rails >= 3.2.8