Serial Killer Silently Pwning Your Java Endpoints

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Finding Gadgets for Fun & Profit Sinks Sources Look for interes;ng method calls … java.lang.reflect.Method.invoke() java.io.File() java.io.ObjectInputStream() java.net.URLClassLoader() java.net.Socket() java.net.URL() javax.naming.Context.lookup() … reached by: java.io.Externalizable.readExternal() java.io.Serializable.readObject() java.io.Serializable.readObjectNoData() java.io.Serializable.readResolve() java.io.ObjectInputValida@on.validateObject() java.lang.reflect.Invoca@onHandler.invoke() javassist.u@l.proxy.MethodHandler.invoke() org.jboss.weld.bean.proxy.MethodHandler.invoke() java.lang.Object.finalize() 34 (sta/c ini/alizer) .toString(), .hashCode() and .equals()
What to Check During Pentests? DAST Tips
Page 1 and 2: Chris;an Schneider Serial Killer: S
Page 3 and 4: Standing on the Shoulder of Giants
Page 5 and 6: AWack Surface Usages of Java serial
Page 7 and 8: Triggering Execu;on via "Magic Meth
Page 9 and 10: Exploi;ng "Magic Methods" But what
Page 11 and 12: Exploi;ng Invoca;onHandler (IH) Gad
Page 13 and 14: New RCE Gadget in BeanShell (CVE-20
Page 15 and 16: New RCE Gadget in Jython (CVE pendi
Page 17 and 18: Exis;ng Mi;ga;on Advice Simply remo
Page 19 and 20: Exis;ng Mi;ga;on Advice Simply remo
Page 21 and 22: How did vendors handle this recentl
Page 23 and 24: Is this for real or is this just fa
Page 25 and 26: Now with home delivery javax.media.
Page 27 and 28: Is it just Java Serializa;on? XStre
Page 29 and 30: XStream, can you run readObject()?
Page 31 and 32: Who Should Check for What? 1. Check
Page 33: High-Level Gadget Categories Gadget
Page 37 and 38: Ac;ve Vulnerability Scanning Some B
Page 39 and 40: How to Harden Your Applica;ons? DO
Page 41: Chris;an Schneider @cschneider4711

Serial Killer Silently Pwning Your Java Endpoints

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