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Difference between revisions of "Evasi0n"
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Revision as of 08:52, 17 December 2013
evasi0n is a jailbreak tool that can perform an untethered jailbreak on iOS 6.0-6.1.2 for all supported devices, excluding both Apple TV 3G revisions. It was first released on 4 February 2013 by evad3rs, and is available for Windows, Mac OS X, and Linux (x86 and x86_64). There is also a Cydia package called "evasi0n iOS 6.0-6.1 untether" which can untether an existing tethered jailbreak without the need to restore and use the desktop tool. It is a userland jailbreak.
Contents
Supported Devices
As of evasi0n's release, the only unsupported devices are the Apple TV 3G revisions, since the kernels on these devices lack an injection vector to run unsigned code. All other devices running iOS 6.0-6.1.2 are supported (including iOS 5.2 for the Apple TV 2G).
Cydia Package
The Cydia package contains just these files:
/usr/libexec/dirhelper /var/evasi0n/amfi.dylib /var/evasi0n/evasi0n
It also includes three Debian maintenance scripts: prerm (a bash script that cancels uninstallation if the device is not vulnerable to limera1n), as well as postrm and extrainst_ binaries.
Version History
| Version | Cydia Package Version | Release Date | # | SHA-1 of evasi0n binary | Changes |
|---|---|---|---|---|---|
| 1.0 | 0.1-1 | 4 Feb 2013 | 1 | f16f4592e5d65927faf98a25bce51b22ee9bc831
|
|
| 1.1 | 0.2-3 | 6 Feb 2013 | 2 | 301003d8aa58a0a2e1bf7030bb903ca42a89c851
|
|
| 1.2 | 0.3-1 | 8 Feb 2013 | 3 | 75d140c53bdd615cc279932f843ab3af584086a5
|
|
| 1.3 | 0.3-2 | 11 Feb 2013 | 4 | ff5a5e767acb4c9acf9a25555ae172ad254e596a
|
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| 1.4 | 0.3-3 | 19 Feb 2013 | 5 | 3b2cc5e2d7be397c09d369e83ea52094250d86e9
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| 1.5 | 0.4-1 | 23 Feb 2013 | 6 | cd5a71b4d0b2767294049cc6b3b2ce3e09d68445
|
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| 1.5.1 | 5 Mar 2013 | 7 | 1a826416932e77f24c94da17884e48ccfe7cdbf6
|
| |
| 1.5.2 | 0.4.1-1 | 11 Mar 2013 | 8 | 3e89337956189e6654cd359995ac550f0372ac8b
|
|
| 1.5.3 | 12 Mar 2013 | 9 | 3e89337956189e6654cd359995ac550f0372ac8b
|
|
Download
| Version | OS | SHA-1 Hash | Download | |||
|---|---|---|---|---|---|---|
| 1.0 | GNU/Linux | c9e4b15a161b89f0e412721f471c5f8559b6054f
|
Google Sites | Box | Mega | RapidShare |
| Mac OS X | 23f99a0d65e71fd79ff072b227f0ecb176f0ffa8
|
Google Sites | Box | Mega | RapidShare | |
| Windows | 2ff288e1798b4711020e9dd7f26480e57704d8b2
|
Google Sites | Box | Mega | RapidShare | |
| 1.1 | GNU/Linux | 6c06a6be87e003eee470eb749b42ffbaafcc9e62
|
Google Sites | Box | Mega | RapidShare |
| Mac OS X | ae9d20bc927976a1f55089cd80afca48de0f7a2e
|
Google Sites | Box | Mega | RapidShare | |
| Windows | 4225b01afd4a4fd1277565954964bd3310ad8b5f
|
Google Sites | Box | Mega | RapidShare | |
| 1.2 | GNU/Linux | 2e1d1f6c7e6ca775860df03298dce3b0d798658a
|
Google Sites | Box | Mega | RapidShare |
| Mac OS X | 8f91aba478ad28bda800dc5c303be1699fcfb800
|
Google Sites | Box | Mega | RapidShare | |
| Windows | 9942559caf779da6526b9fd0e207d21554a8a9cf
|
Google Sites | Box | Mega | RapidShare | |
| 1.3 | GNU/Linux | d93bc45653345e62a315e0a0aaa1b709aacd26c4
|
Google Sites | Box | Mega | RapidShare |
| Mac OS X | c239da3fd4e312c8468cdca967c86962b2cbd3f9
|
Google Sites | Box | Mega | RapidShare | |
| Windows | 92bbe23f125f3b0155334f1925943624e24ce130
|
Google Sites | Box | Mega | RapidShare | |
| 1.4 | GNU/Linux | 95c34e7a7220d2dab2e93cf9bb62beb49aef8996
|
Google Sites | Box | Mega | N/A |
| Mac OS X | 96b62f303e335bb5c6b78034027606fee5fc93c3
|
Google Sites | Box | Mega | ||
| Windows | 36adf9ccf62aaf770163666e757c7a89e9ba3a55
|
Google Sites | Box | Mega | ||
| 1.5 | GNU/Linux | 923db21a9045df6aaaff27670be92330f4855a21
|
Google Sites | Box | Mega | |
| Mac OS X | cccf7e5b4a83df8c05dcfed98b9627533c018541
|
Google Sites | Box | Mega | ||
| Windows | 25799bbeea3733c26fb010e6aca432d686fd8f9f
|
Google Sites | Box | Mega | ||
| 1.5.1 | GNU/Linux | cc0bd166a1480c2a838584b201981db1e45ca411
|
N/A | Box | Mega | |
| Mac OS X | 4a0e9fb8b5f83fbee5e26d1d7db876cefd09832a
|
Box | Mega | |||
| Windows | a220bb5fb1ccf5cf1cb666dc03e20ac54890835d
|
Box | Mega | |||
| 1.5.2 | GNU/Linux | 97fbeb932dd3cb22ec339ec4c2f95a17d570d30c
|
Box | N/A | RapidShare | |
| Mac OS X | 051079f808f5c31f32ba09c6a39f09a8c3479157
|
Box | RapidShare | |||
| Windows | 30d34e23f860eae28d4ae6513edc46ef8aa2042c
|
Box | RapidShare | |||
| 1.5.3 | GNU/Linux | 620dcb7996b1f3497827b11876bf0c2fae069ecf
|
Box | RapidShare | ||
| Mac OS X | 54827d78cb45b7dae4e7566b9ed5c1b833d68850
|
Box | RapidShare | |||
| Windows | 2f8c2f111a6afefd099ecb0ce5aab63f160940b8
|
Box | RapidShare | |||
Exploits and Vulnerabilities
evasi0n takes advantage of several vulnerabilities:
- Symbolic Link Vulnerability
- Malformed PairRequest
- Timezone Vulnerability (CVE-2013-0979)
- Shebang Trick
- AMFID code signing evasion
- launchd.conf untether
- IOUSBDeviceFamily Vulnerability (CVE-2013-0981)
- ARM Exception Vector Info Leak (CVE-2013-0978)
- dynamic memmove() locating
- vm_map_copy_t corruption for arbitrary memory disclosure
- kernel memory write via ROP gadget
- Overlapping Segment Attack (CVE-2013-0977)
Symbols in Untether code
| Symbol | v1 | v2 | v3 | v4 | v5 | v6 | v7 | v8/9 |
|---|---|---|---|---|---|---|---|---|
| start | 020B0 | 02EF8 | 02BFC | 02BFC | 02BFC | 02E30 | ? | 02A80 |
| find_memmove_arm#search | ? | ? | ? | ? | ? | 0AFA0 | ? | ? |
| find_memmove_thumb#search | ? | ? | ? | ? | ? | 0AFD0 | ? | ? |
| find_memmove | ? | ? | ? | ? | ? | 0571C | ? | ? |
| find_memmove#exit | ? | ? | ? | ? | ? | 05762 | ? | ? |
| _catch_exception_raise_state_identity | ? | ? | ? | ? | ? | ? | ? | 065B8 |
See Also
External Links
- Official Website
- Accuvant Labs analysis
- Analysis by kernelpool
- kernelpool presentation at NISlab: slides
- kernelpool presentation at NISlab: video
- Explanation by planetbeing in Forbes
- Hopper Script to demangle evasi0n strings for Mac client of evasi0n, use in Hopper disassembler
- Apple Response: iOS 6.1.3 Security Fixes
- Apple Response: iOS 5.2.1 (Apple TV) Security Fixes
- Slides from HITB presentation in Amsterdam 2013
- Quarkslab blog post describing how evasi0n bypasses code signing
