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refactor: combine normal and bypass JSP template

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This commit is contained in:
ReaJason
2025-06-07 13:31:18 +08:00
parent 0c7dadc4f4
commit d5aec65d9b
8 changed files with 23 additions and 56 deletions
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generator/src/main/java/com/reajason/javaweb/memshell/Packers.java
+4 -6
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@@ -24,7 +24,10 @@ import com.reajason.javaweb.memshell.packer.jar.AgentJarWithJREAttacherPacker;
import com.reajason.javaweb.memshell.packer.jar.DefaultJarPacker;
import com.reajason.javaweb.memshell.packer.jexl.JEXLPacker;
import com.reajason.javaweb.memshell.packer.jinjava.JinJavaPacker;
import com.reajason.javaweb.memshell.packer.jsp.*;
import com.reajason.javaweb.memshell.packer.jsp.ClassLoaderJspPacker;
import com.reajason.javaweb.memshell.packer.jsp.DefineClassJspPacker;
import com.reajason.javaweb.memshell.packer.jsp.JspPacker;
import com.reajason.javaweb.memshell.packer.jsp.JspxPacker;
import com.reajason.javaweb.memshell.packer.jxpath.JXPathPacker;
import com.reajason.javaweb.memshell.packer.mvel.MVELPacker;
import com.reajason.javaweb.memshell.packer.ognl.OGNLPacker;
@@ -68,7 +71,6 @@ public enum Packers {
JSP(new JspPacker()),
ClassLoaderJSP(new ClassLoaderJspPacker(), JspPacker.class),
DefineClassJSP(new DefineClassJspPacker(), JspPacker.class),
BypassDefineClassJSP(new BypassDefineClassJspPacker(), JspPacker.class),
JSPX(new JspxPacker(), JspPacker.class),
/**
@@ -140,10 +142,6 @@ public enum Packers {
this.parentPacker = parentPacker;
}
public static Packer getPacker(Packers packerType) {
return null;
}
public static List<Packers> getPackersWithParent(Class<?> parentPacker) {
return Stream.of(Packers.values()).filter(p -> Objects.equals(p.getParentPacker(), parentPacker)).collect(Collectors.toList());
}
generator/src/main/java/com/reajason/javaweb/memshell/packer/deserialize/hessian/HessianXSLTScriptEnginePacker.java
-1
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@@ -9,7 +9,6 @@ import com.reajason.javaweb.memshell.packer.Packer;
import java.util.Base64;
/**
* @author ReaJason
* @since 2025/2/20
generator/src/main/java/com/reajason/javaweb/memshell/packer/jsp/BypassDefineClassJspPacker.java
-34
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@@ -1,34 +0,0 @@
package com.reajason.javaweb.memshell.packer.jsp;
import com.reajason.javaweb.memshell.config.GenerateResult;
import com.reajason.javaweb.memshell.packer.Packer;
import lombok.SneakyThrows;
import org.apache.commons.io.IOUtils;
import java.nio.charset.Charset;
import java.util.Objects;
/**
* @author ReaJason
* @since 2024/11/26
*/
public class BypassDefineClassJspPacker implements Packer {
String jspTemplate = null;
public BypassDefineClassJspPacker() {
try {
jspTemplate = IOUtils.toString(Objects.requireNonNull(this.getClass().getResourceAsStream("/shell2.jsp")), Charset.defaultCharset());
} catch (Exception ignored) {
}
}
@Override
@SneakyThrows
public String pack(GenerateResult generateResult) {
String injectorBytesBase64Str = generateResult.getInjectorBytesBase64Str();
String injectorClassName = generateResult.getInjectorClassName();
return jspTemplate.replace("{{className}}", injectorClassName).replace("{{base64Str}}", injectorBytesBase64Str);
}
}
generator/src/main/java/com/reajason/javaweb/memshell/packer/jsp/DefineClassJspPacker.java
+10 -3
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@@ -14,11 +14,13 @@ import java.util.Objects;
*/
public class DefineClassJspPacker implements Packer {
String jspTemplate = null;
String template = null;
String bypassTemplate = null;
public DefineClassJspPacker() {
try {
jspTemplate = IOUtils.toString(Objects.requireNonNull(this.getClass().getResourceAsStream("/shell1.jsp")), Charset.defaultCharset());
template = IOUtils.toString(Objects.requireNonNull(this.getClass().getResourceAsStream("/shell1.jsp")), Charset.defaultCharset());
bypassTemplate = IOUtils.toString(Objects.requireNonNull(this.getClass().getResourceAsStream("/shell2.jsp")), Charset.defaultCharset());
} catch (Exception ignored) {
}
@@ -29,6 +31,11 @@ public class DefineClassJspPacker implements Packer {
public String pack(GenerateResult generateResult) {
String injectorBytesBase64Str = generateResult.getInjectorBytesBase64Str();
String injectorClassName = generateResult.getInjectorClassName();
return jspTemplate.replace("{{className}}", injectorClassName).replace("{{base64Str}}", injectorBytesBase64Str);
String template = this.template;
if (generateResult.getShellConfig().needByPassJavaModule()) {
template = bypassTemplate;
}
return template.replace("{{className}}", injectorClassName)
.replace("{{base64Str}}", injectorBytesBase64Str);
}
}