Rootless Jailbreakd – Jailbreakd Offering Some More Functionality To The Jailbreak

Rootless Jailbreakd is A small jailbreakd offering some more functionality to the jailbreak. Uses CPDisctributedMessageCenter. To compile you need theos (why? cus why not? and I like theos. If you’re smart enough you can still compile it manually very easily so yeah)

Also Read whatweb – Tool to Discover Security Vulnerabilities With Your Web Application

Setup Rootless Jailbreakd

• Grab AppSupport headers and add them into your include path (https://github.com/theos/headers/tree/05405174749d912f7726121fcb5f27de73af0f08/AppSupport)
• Include “AppSupport/CPDistributedMessagingCenter.h” on your main.m file
• Link with https://github.com/jakeajames/rootme-tutorial/blob/master/AppSupport.tbd
• The general syntax follows as this:

  CPDistributedMessagingCenter *messageCenter = [CPDistributedMessagingCenter centerNamed:@"com.jakeashacks.rootme"];
  [messageCenter sendMessageAndReceiveReplyName:@"MESSAGE_NAME" userInfo:[NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"%d", getpid()] forKey:@"pid"]];

  Compiling

  ./make.sh

  Commands

  At the moment these commands are available

  1. “rootme”: does setuid(0) and setgid(0) for you
  2. “unsandbox”: gets rid of most of the sandbox (This will not be any useful right now since to call jailbreakd you have to be unsandboxed already)
  3. “platformize”: marks your binary as platform by setting TF_PLATFORM and CS_PLATFORM_BINARY
  4. “setcsflags”: Sets some flags such as CS_PLATFORM_BINARY, CS_GET_TASK_ALLOW, CS_DEBUGGED etc
  5. “entitle”: Set entitlement to true or false. Example:

  CPDistributedMessagingCenter *messageCenter = [CPDistributedMessagingCenter centerNamed:@"com.jakeashacks.rootme"];
  NSMutableDictionary *dict = [NSMutableDictionary dictionary];
  [dict setValue:@"com.apple.private.skip-library.validation" forKey:@"ent"]; //entitlement name
  [dict setValue:@"true" forKey:@"value"]; //true or false
  [dict setValue:[NSString stringWithFormat:@"%d", getpid()] forKey:@"pid"];
  [messageCenter sendMessageAndReceiveReplyName:@"entitle" userInfo:dict];

  Do binaries need suid permissions or root ownership?

  No. I didn’t bother with that because

•  There isn’t a package manager so all binaries are controlled by you,
•  there’s no root remount thus nothing can cause a big mess,
• you need to be unsandboxed to make a call to jailbreakd (all binaries you run via SSH satisfy this requirement) and that’s enough for me. Is it coming? Probably yes