IT. Expert System.

Java Standard Edition (SE)

AttachPermission


com.sun.tools.attach

Class AttachPermission

  • All Implemented Interfaces:
    Serializable, Guard


    @Exported
    public final class AttachPermission
    extends BasicPermission
    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.

    See Also:
    VirtualMachine, AttachProvider, Serialized Form
    • Constructor Detail

      • AttachPermission

        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.
      • AttachPermission

        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.


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