public final class

AttachPermission

extends BasicPermission
java.lang.Object
   ↳ java.security.Permission
     ↳ java.security.BasicPermission
       ↳ com.sun.tools.attach.AttachPermission

Class Overview

When a SecurityManager set, this is the permission which will be checked when code invokes VirtalMachine.attach to attach to a target virtual machine. This permission is also checked when an AttachProvider is created.

An AttachPermission object contains a name (also referred to as a "target name") but no actions list; you either have the named permission or you don't. The following table provides a summary description of what the permission allows, and discusses the risks of granting code the permission.

Permission Target Name What the Permission Allows Risks of Allowing this Permission
attachVirtualMachine Ability to attach to another Java virtual machine and load agents into that VM. This allows an attacker to control the target VM which can potentially cause it to misbehave.
createAttachProvider Ability to create an AttachProvider instance. This allows an attacker to create an AttachProvider which can potentially be used to attach to other Java virtual machines.

Programmers do not normally create AttachPermission objects directly. Instead they are created by the security policy code based on reading the security policy file.

Summary

Public Constructors
AttachPermission(String name)
Constructs a new AttachPermission object.
AttachPermission(String name, String actions)
Constructs a new AttachPermission object.
[Expand]
Inherited Methods
From class java.security.BasicPermission
From class java.security.Permission
From class java.lang.Object
From interface java.security.Guard

Public Constructors

public AttachPermission (String name)

Constructs a new AttachPermission object.

Parameters
name Permission name. Must be either "attachVirtualMachine", or "createAttachProvider".
Throws
NullPointerException if name is null.
IllegalArgumentException if the name is invalid.

public AttachPermission (String name, String actions)

Constructs a new AttachPermission object.

Parameters
name Permission name. Must be either "attachVirtualMachine", or "createAttachProvider".
actions Not used and should be null, or the empty string.
Throws
NullPointerException if name is null.
IllegalArgumentException if arguments are invalid.