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** [[Baseband Bootrom Protocol]] * [[alloc8 Exploit]]

...ns of the [[iPhone 3GS]], along with [[ipwndfu]] as a tool to utilise this exploit. ...cumvent the [[APTicket]] [[nonce]] on devices vulnerable to [[limera1n]]'s exploit.

...N45AP|iPod touch]], and [[N82AP|iPhone 3G]]. The vulnerability is that the bootrom doesn't signature check [[LLB]]. ==Exploit==

This exploit is in the [[Baseband Bootrom]]. There are hardware (testpoint) and software variations of this. ...00A5A0 0xA0015C58 0xA0017370 read as 0xFFFFFFFF on startup, the [[Baseband Bootrom Protocol]] can be used to download and run unsigned code. In the initial ha

* Bootrom exploit (used by [[limera1n]] and [[Greenpois0n (jailbreak)|greenpois0n]]) ...[[iPhone 4S]] are not supported, as there is no publicly available bootrom exploit (like [[Pwnage]], [[Pwnage 2.0]], [[limera1n]]) for the A5-Processor.

...overriding carrier locks on-the-fly in RAM, therefore at boot the baseband bootrom can validate the bootloader, and the bootloader can validate the baseband. ...ed iPhone OS 2.2.1, which contained baseband [[02.30.03]] and patched said exploit.

The [[pwnage]] exploit resides here. [[Category:Bootrom]]

This exploit in the [[VROM (S5L8900)|S5L8900 bootrom]] is really the ultimate exploit, since it allows unsigned code to be run at the lowest level. It is availab ==Exploit==

...S-Gold 2]] phones. It allows unsigned code to be uploaded using [[Baseband Bootrom Protocol]]. On non debug variants of the chip, it requires [[Fakeblank]] to ...bootrom is located at 0x400000, and can be dumped via geohotz 5.8bl loader exploit

...that runs on an iDevice. The bootrom is read-only. Finding exploits in the bootrom level is a big achievement since Apple won't be able to fix it without a ha == Old & New bootrom ==

...th a [https://www.theiphonewiki.com/wiki/Category:Bootrom_Exploits bootrom exploit], you can load modified ones.

* [[VROM (S5L8900)|VROM]] ([[Bootrom Rev.2]]) ...f the [[iDroid]] project is to modify the boot chain immediately after the bootrom:

...which Apple eventually patches" they mentioned). If a person has a bootrom exploit like limera1n, they can decrypt firmwares by generating the firmware keys f ...4934420480 "With limera1n millions of people had access to the GID key via bootrom code. Not a single person managed to create a bad accepted firmware"]

* [[Baseband Bootrom|X-Gold 608 Baseband Bootrom]] - breaking the chain of trust * [[Baseband Bootrom|X-Gold 618 Baseband Bootrom]] - breaking the chain of trust

..., the engine is only accessible through a special [[bootrom]] or [[iBoot]] exploit ([[jailbreak]]s typically expose it with [[/dev/aes_0]]). This makes usage

...existing startup process). Once code execution has been obtained, a kernel exploit is used in order to patch the currently loaded kernel to allow for the root == BootROM exploits ==

iDroid is not actually a hack/exploit neither an unlock, but it is based on [[Bootrom]] exploits which allowing the running of unsigned code at low level.

The chip contains [[Bootrom 1062.2]]. It runs [[ARM]] based instructions. The exact [[ARM]] reference h ==Bootrom Exploits==

== Exploit == The exploit consists from 4 parts:

== [[Bootrom]] Exploits == * [[0x24000 Segment Overflow]] - only in [[Bootrom 240.4]] (old bootrom)

...m]]. It is based off of WTF 2.0, and is much more secure than the previous bootrom. It boils down to 3 things: ...So you cannot just cheat by sending a 1.1.4 iBoot and then using the diags exploit to strap a patched one ;-)

...was the first exploit in the [[S5L8720]] that allowed people to bypass the bootrom signature checks on [[LLB]] and create what is known as an [[untethered jai == Exploit==

...iPhone 3G]] and [[N72AP|iPod touch (2nd generation)]] ([[Bootrom 240.4|old bootrom]]) with iOS 4.0 on Windows and Mac OS X. ...P|iPod touch]], [[N72AP|iPod touch (2nd generation)]] ([[Bootrom 240.4|old bootrom]])

* Find a new [[iBoot]] exploit every time a new firmware is out. * Use a bootrom exploit that allows unsigned code execution via USB.

===Bootrom=== ...vices that have [[Bootrom 359.3]] Units produced after 2009 week 40 have [[Bootrom 359.3.2]] and are not vulnerable to the [[0x24000 Segment Overflow]].

== [[Bootrom]] == '''Bootrom Version''': [[Bootrom 359.3]]

...ts: SHAtter (a [[bootrom]] [[exploit]]) as well as a userland [[kernel]] [[exploit]] provided by [[User:Comex|Comex]] to make the jailbreak [[untethered jailb ...09}}, which led to a delay in greenpois0n's release (to implement geohot's exploit, not SHAtter).

...rable to the [[limera1n Exploit|limera1n]] and [[checkm8 Exploit|checkm8]] bootrom exploits.

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== [[checkm8 Exploit|checkm8]]

1.[[limera1n]] - the bootrom exploit that allows pwned [[DFU Mode]]. Pwned DFU mode puts the device in a state w 4.[[limera1n]] - everytime the device is booted tethered, the exploit bypasses [[SHSH]] blobs verification, allowing it to boot.

...are the [[iPhone 3GS]] and [[iPod touch (2nd generation)]]. The [[limera1n Exploit]] is able to provide a [[Tethered Downgrade|tethered downgrade]] for vulner ...as the [[limera1n Exploit]], are fixed in the [[bootrom]] since version [[Bootrom 838.3]] and because iOS versions 5.0 and above includes a [[nonce]] in thei

== [[S5L8922 (Bootrom)|Bootrom]] Exploits == [[User:Geohot|Geohot]] has made use of his previously undisclosed bootrom exploit in [[limera1n]]. It is also implemented in Chronic Dev's [[Greenpois0n (too

{{DISPLAYTITLE:usb_control_msg(0x21, 2) Exploit}} ...irmwares, and [[N72AP|iPod touch (2nd generation)]] ([[Bootrom 240.5.1|new bootrom]]) owners could have used it for a [[tethered jailbreak]] on 4.0 and 4.1, u

...n]] but now uses geohot's implementation of the [[usb_control_msg(0x21, 2) Exploit]]. ...nd the [[N18AP|iPod touch (3rd generation)]]. These devices have updated [[bootrom|bootroms]] that are not vulnerable to the [[0x24000 Segment Overflow]].

...ble to the [[0x24000 Segment Overflow]] and the [[usb_control_msg(0xA1, 1) Exploit]]. [[Category:Bootrom]]

...is bootrom can be differentiated from those with the [[Bootrom 240.4|first bootrom]] by their model number; the new ones' model number begins with "MC, PC, an '''It is not vulnerable to the [[0x24000 Segment Overflow]] exploit'''.

...o the [[0x24000 Segment Overflow]], but it is vulnerable to the [[limera1n Exploit]]. [[Category:Bootrom]]

[[S5L8920]] bootrom revision for the [[N88AP|iPhone 3GS]] sold between {{date|2009|06}} and {{d This bootrom is vulnerable to the [[0x24000 Segment Overflow]] and [[limera1n Exploit]], which together provide a "pwned for life" [[untethered jailbreak]]. This

...with iOS updates. Those tools do usually need minor software updates (not exploit-related) to explicitly support new iOS versions. They also use additional e

[[S5L8920]] bootrom revision for the [[N88AP|iPhone 3GS]] sold starting {{date|2009|09}}. Released to patch the [[0x24000 Segment Overflow]] exploit.

...ation)]] ([[Tethered jailbreak|tethered]] using [[usb_control_msg(0xA1, 1) Exploit]]) ...d touch (3rd generation)]] and [[N88AP|iPhone 3GS]] ([[Bootrom 359.3.2|new bootrom]]) on iOS 3.1.2

...ile devices manufactured for Apple that has a publicly known exploitable [[bootrom]] vulnerability until the title was taken by [[checkm8]]. == [[Bootrom]] Exploits ==

...and]] exploit, unique in that it does not rely on an [[iBoot]]/[[bootrom]] exploit. Since MobileBackup requires activation to be used, Spirit requires [[activ *[[MobileBackup Copy Exploit]]

NOTE: This technique only works on devices that have an untethered bootrom exploit ([[Pwnage]] or [[0x24000 Segment Overflow]]).

...files, so downgrading an updated baseband, provided there is a bootloader exploit, will be tougher. ...ated. Shortly after, a persistent/background task was inserted. Also, the bootrom has been successfully dumped.

...ouch (4th generation)]], and the [[K66AP|Apple TV (2nd generation)]]. This bootrom was compiled in between 3.0 beta 1 and 3.0 beta 2. ...by [[User:Geohot|geohot]] to jailbreak devices using this revision of the bootrom.

...tion [[:Category:Exploits|exploit]], you still need a privilege escalation exploit as well in order to modify this file. And even if you could do that, the [[ The first piece of code that’s loaded on the iPhone is the [[bootrom]]. It’s Secure-Boot as Apple’s terminology is. I mean it’s kind of a

...lder versions of [[iOS]]. You should still save your SHSH blobs in case an exploit is discovered. However, [[Odysseus]], [[OdysseusOTA]] or [[OdysseusOTA2]] c

...no way to hacktivate an iPhone Xs/Xʀ or later iPhone, as they do not have bootrom exploits available. However, a more proper hacktivation could be done via a [[lockdownd]] exploit on some iOS versions, such as on iOS 7.1.1 and below. This activation gives

{{DISPLAYTITLE:usb_control_msg(0xA1, 1) Exploit}} ...pe 0xA1, request 0x1. This exploit is also referred to as the "steaks4uce" exploit.

...he [[limera1n Exploit]]) and [[User:Comex|comex]]'s [[Packet Filter Kernel Exploit]] to achieve an [[untethered jailbreak]] on many devices. The following dev * '''[[User:Geohot|geohot]]''' - The program itself, and the bootrom exploit.

...720]] get [[SHSH]] blobs without APTicket from 3.1.1 and on, even though [[Bootrom 240.4]] doesn't require them and they can be avoided with the [[0x24000 Seg ...PTicket between 3.0 - 4.3.5, and they can not be avoided (except for the [[Bootrom 359.3]] with the 0x24000 Segment Overflow)

...(short BDU) is an application that will create a copy (aka dump) of the [[Bootrom]] of compatible devices on the local machine from where the application is 0x8b7 @ iPhone 3GS new bootrom

For noawadays [[limera1n Exploit|limera1n]]- based jailbreaks there are quite a bit patches: ...vice and [[APTicket]] is included as "APTicket.img3" or "SCAB.img3" or old bootrom [[N88AP|3GS]] the iBSS needs to be patched out of its [[nonce]] creation. I

'''iran''' is an implementation of the [[Pwnage 2.0]] exploit this injected a pwnd [[DFU_Mode]] allowing custom firmware to be restored t printf("based off the dev teams pwnage 2.0 exploit\n");

{{DISPLAYTITLE:Packet filter kernel exploit}} ...ra1n]], [[PwnageTool]], and [[redsn0w]], along with limera1n's [[bootrom]] exploit, to achieve an [[untethered jailbreak]] for devices invulnerable to [[0x240

...tion with limera1n's [[bootrom]] exploit or the [[usb_control_msg(0xA1, 1) Exploit]] in [[greenpois0n (jailbreak)|greenpois0n]]. puts("[+]Triggering the kernel exploit");

...H8sn0w]]. It works on all devices that are susceptible to the [[limera1n]] exploit (all devices before the [[iPad 2]]). This is useful if you receive a device * [[User:Geohot|geohot]] - [[limera1n Exploit]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

...e devices were vulnerable to it. SHAtter was patched in the [[S5L8940|A5]] bootrom and therefore, never officially released. * '''exploit''': [[User:Pod2g|pod2g]]

...ts, such as the [[0x24000 Segment Overflow]] or the [[Packet Filter Kernel Exploit]]. ...iPhone 4 (iPhone3,2)]], and it remains the only publicly disclosed bootrom exploit, other than [[SHAtter]], for this device as well as all other variants of t

...the limera1n exploit ignores incorrect signatures we can use the limera1n exploit (DFU mode, then using redsn0w) to boot up your device. The problem is only ...alidation function must be patched or bypassed with an appropriate bootrom exploit payload on every boot or the device will be forced into DFU mode.

...[[SHSH|SHSH blobs]], used by iOS 5.0 and newer. The client (iBSS/LLB/iBoot/BootROM) generates a random string (nonce), then iTunes and the device sends the re ...ding with APTicket, but it only works for devices vulnerable to [[Limera1n Exploit]].

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

The chip contains [[Bootrom 1145.3]]. It runs [[ARM]] based instructions with the CPU Instruction set A [[Bootrom 1145.3|Bootrom]]->[[LLB]]->[[iBoot]]->[[Kernel]]->[[Firmware|System Software]]

...90AP]] and [[N92AP]]. This means that this will work with the [[limera1n]] exploit. The name used in firmware is iPhone3,2.

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

== Bootrom Exploits == * [[Checkm8 Exploit|checkm8]]

...n)]] with [[Bootrom 240.4|old bootrom]]; another exploit as the [[limera1n Exploit]] is required) * [[limera1n Exploit]] (for [[tethered jailbreak]] on [[N88AP|iPhone 3GS]], [[N18AP|iPod touch (

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

...it]]. However, it has become possible to downgrade devices with no (known) bootrom exploits to certain firmware versions, such as remaining on iOS 5.x or down

...rm a tethered downgrade on any device that is vulnerable to the [[limera1n Exploit]]. ...alidation function must be patched or bypassed with an appropriate bootrom exploit payload on every boot or the device will be forced into DFU mode or recover

...d jailbreak|untethered]] [[bootrom]] exploit for the [[Bootrom 359.3.2|new bootrom]] iPhone 3GS. ...om/axi0mX/alloc8/blob/master/README GitHub] following his discovery of the exploit.

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

...both variants of the [[N88AP|iPhone 3GS]]. It now also uses a new bootrom exploit, [[Checkm8_Exploit | checkm8]] to support [[A5]] to [[A11]] devices. * '' dump [[bootrom]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== * [[Checkm8 Exploit|checkm8]]

==Bootrom Exploits== The T8012 uses Bootrom version [[Bootrom_3401.0.0.1.16]] which is vulnerable to [[checkm8]]. A fo

...] it). Jailbreaks based on checkm8 are [[semi-tethered jailbreak]]s as the exploit works by taking advantage of a use-after-free in the USB DFU stack. ...d [[checkm8-a5]] are currently the main tools capable of using the checkm8 exploit.

...co (qwertyoruiop)]]. It's based on the [[checkm8 Exploit|checkm8]] bootrom exploit released by [[User:axi0mX|axi0mX]]. checkra1n supports iOS 12.0 and newer, *Changes some GUI internals that should reduce the chance of exploit failure and GUI hiccups

=== "Pwning" the watch and dumping the bootrom === If the exploit fails, you may need to run it again. It can take anywhere from one to sever

...oot (Bootloader)|iBoot]] exploit, as the SEP needs to be in SEPROM for the exploit to work. The exploit takes advantage of a bug in the reading of the TZ0/TZ1 registers that the a