35 lines
1.2 KiB
Ruby
35 lines
1.2 KiB
Ruby
require_relative '../spec_helper'
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ruby_version_is ''...'3.0' do
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require 'rexml/document'
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describe "REXML::Document.new" do
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it "resists CVE-2014-8080 by raising an exception when entity expansion has grown too large" do
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xml = <<XML
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<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE x [
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<!ENTITY % x0 "xxxxxxxxxx">
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<!ENTITY % x1 "%x0;%x0;%x0;%x0;%x0;%x0;%x0;%x0;%x0;%x0;">
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<!ENTITY % x2 "%x1;%x1;%x1;%x1;%x1;%x1;%x1;%x1;%x1;%x1;">
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<!ENTITY % x3 "%x2;%x2;%x2;%x2;%x2;%x2;%x2;%x2;%x2;%x2;">
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<!ENTITY % x4 "%x3;%x3;%x3;%x3;%x3;%x3;%x3;%x3;%x3;%x3;">
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<!ENTITY % x5 "%x4;%x4;%x4;%x4;%x4;%x4;%x4;%x4;%x4;%x4;">
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<!ENTITY % x6 "%x5;%x5;%x5;%x5;%x5;%x5;%x5;%x5;%x5;%x5;">
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<!ENTITY % x7 "%x6;%x6;%x6;%x6;%x6;%x6;%x6;%x6;%x6;%x6;">
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<!ENTITY % x8 "%x7;%x7;%x7;%x7;%x7;%x7;%x7;%x7;%x7;%x7;">
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<!ENTITY % x9 "%x8;%x8;%x8;%x8;%x8;%x8;%x8;%x8;%x8;%x8;">
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]>
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<x>
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%x9;%x9;%x9;%x9;%x9;%x9;%x9;%x9;%x9;%x9;
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</x>
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XML
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-> {
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REXML::Document.new(xml).doctype.entities['x9'].value
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}.should raise_error(REXML::ParseException, /entity expansion has grown too large/)
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end
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end
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end
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