error: failed to launch process debugserver: Security

I jailbroken my iPhone 4s with iOS 8.2 and tried to ran debugserver, then I met this error:

Google doesn’t help.

Just because, the App I’m trying to crack is an In-House app, not from AppStore, I have to ran it after installation and choose to trust the developer.

error: failed to launch process debugserver: Security by @sskaje: https://sskaje.me/2016/01/failed-launch-process-debugserver-security/

OSX Server 4.0 Redeem Code

Free for developers.

Click here

More:
Apple Developer Redeem Codes
Free OS X Yosemite(10.10) Developer Preview Redeem Code for Developers
Apple gives free OS X Server 3.0 redeem codes to developers

OSX Server 4.0 Redeem Code by @sskaje: https://sskaje.me/2014/10/osx-server-4-0-redeem-code/

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OpenConnect DNS Only + Google Only

I’m using 4G by China Mobile, but the DNS it provides really sucks. Changing DNS from Cellular Data on a not-jailbroken iPhone is impossible so far as I know (I tried mobileconfig but can find any working options).

The first idea is pushing DNS from a PPTP server, which I wrote: Notes: PPTP/L2TP Server on Ubuntu.
I can create two connections on my iOS, one set default route, one not. All users share a same setting from PPTPd, it’s almost impossible if I want to use a different DNS in these two connections, changing default pptp port from 1723 to others is not as easy as it is on windows.
Don’t forget that PPTP is what GF*W likes.
Continue reading “OpenConnect DNS Only + Google Only” »

OpenConnect DNS Only + Google Only by @sskaje: https://sskaje.me/2014/06/openconnect-dns-google/

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Free OS X Yosemite(10.10) Developer Preview Redeem Code for Developers

Last time I said: Apple gives free OS X Server 3.0 redeem codes to developers
After the WWDC2014, Apple gives free redemption code for developers, both iOS and OS X, this time os x 10.10 and server again.

You must login before using these links!
For OS X server:
https://developer.apple.com/devcenter/mac/loadredemptioncode.action?seedId=13CB96H8S4
For OS X Yosemite(10.10) developer preview:
https://developer.apple.com/devcenter/mac/loadredemptioncode.action?seedId=14NEDN932X

I tried these two, got 3 for OS X 10.10 and 2 for OS X Server.
If you have a Developer account, you can add sub-accounts to get almost UNLIMITED codes.

If you have any codes, please share.

Free OS X Yosemite(10.10) Developer Preview Redeem Code for Developers by @sskaje: https://sskaje.me/2014/06/free-os-yosemite-10-10-developer-preview-redeem-code-developers/

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Mach-O Disable ASLR/PIE

ASLR, Address Space Layout Randomization

Address space layout randomization (ASLR) is a computer security technique involved in protection from buffer overflow attacks. In order to prevent an attacker from reliably jumping to a particular exploited function in memory (for example), ASLR involves randomly arranging the positions of key data areas of a program, including the base of the executable and the positions of the stack, heap, and libraries, in a process’s address space.

From http://en.wikipedia.org/wiki/Address_space_layout_randomization

Mach-O

Mach-O, short for Mach object file format, is a file format for executables, object code, shared libraries, dynamically-loaded code, and core dumps. A replacement for the a.out format, Mach-O offered more extensibility and faster access to information in the symbol table.

Mach-O was once used by most systems based on the Mach kernel.[citation needed] NeXTSTEP, OS X, and iOS are examples of systems that have used this format for native executables, libraries and object code.

http://en.wikipedia.org/wiki/Mach-O

There are several tools turning ASLR/PIE off, some of those need to be compiled. So I decided to write one in Python. Repository: https://github.com/sskaje/disable_aslr

Disable ASLR on jailbroken iPod Touch 4 with python installed from Cydia
Disable ASLR

Disable ASLR on OS X for iOS App
Disable ASLR on OS X for iOS App

https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/MachORuntime/Reference/reference.html

Mach-O Disable ASLR/PIE by @sskaje: https://sskaje.me/2014/05/mach-o-disable-aslr-pie/

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