P0sixspwn

p0sixspwn is an untethered jailbreak for iOS 6.1.3-6.1.5 by winocm, iH8sn0w and SquiffyPwn. It was initially made available as an Cydia package on Saurik's repo to untether already jailbroken devices. It works with all devices that support iOS 6.1.3-6.1.5, except for Apple TV 3. On 30 December 2013, a Mac OS X program was released to perform a jailbreak. A Windows program was released on 3 January 2014.

Cydia Package Changelog

• 1.0-5 the initial release of the untether
• 1.0-9 iPhone 4 GSM boot loop fix
• 1.1-1 Automatically reboot after 30 seconds if device did not boot. (iH8sn0w's repo only)
• 1.1-2 Automatically reboot after one minute if device did not boot due to 30 seconds was too quick. (iH8sn0w's repo only)
• 1.1-3 Automatically reboot after two minutes if device did not boot due to 60 seconds was too quick. (iH8sn0w's repo only)
• 1.2-1 Various bug fixes.
• 1.3-2 Fixes iMessage, LTE issues and Apple TV 2G support.

Desktop Download

Version	OS	SHA-1 Hash	Download	Changes
1.0.0	OS X	b5a66f4e58ab4c813fc851d479b28188eb5115ec	Mega	Initial release.
1.0.1		ae5b3907660b161b2ff94a2e2cfef97195404a89	Mega	Resolves issues with iPod touch 5 not being detected.
1.0.2		259e95fd16468260c8831ca17186f50b7d14ba41	Mega	Resolves issues with LTE/data.
1.0.3	Windows	060c95cda0e5ad861bd225ca19324e6ebd3c0a5d	Mega	Initial release for Windows.
1.0.4		0a40a9780ba0dd9f0476d12950b4fb0026c8559a	Mega	Added README and time adjustments for slow PC's.

Exploits

• posix_spawn kernel information leak (by i0n1c)
• mach_msg_ool_descriptor_ts for heap shaping
• dyld S_ATTR_LOC_RELOC/function reexport (also used in evasi0n7) (same as AMFID_code_signing_evasion?)
• DeveloperDiskImage race condition (by comex)
• MobileBackup2 arbitrary symbolic link restore (also used in evasi0n) (same as Symbolic Link Vulnerability?, fixed in iOS7.1b2)
• launchd.conf (same as launchd.conf untether?)

External Links

• iH8sn0w's blog post on the release.
• p0sixspwn