112 lines
No EOL
4.2 KiB
Text
112 lines
No EOL
4.2 KiB
Text
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Vulnerability Summary
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Title iOS 7 arbitrary code execution in kernel mode
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Release Date 14 March 2014
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Reference NGS00596
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Discoverer Andy Davis
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Vendor Apple
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Vendor Reference 600217059
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Systems Affected iPhone 4 and later, iPod touch (5th generation) and later,
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iPad 2 and later
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CVE Reference CVE-2014-1287
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Risk High
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Status Fixed
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Resolution Timeline
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Discovered 26 September 2013
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Reported 26 September 2013
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Released 26 September 2013
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Fixed 10 March 2014
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Published 14 March 2014
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Vulnerability Description
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When a specific value is supplied in USB Endpoint descriptor for a HID device
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the Apple device kernel panics and reboots
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Technical Details
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The bug can be triggered using umap (https://github.com/nccgroup/umap)
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as follows:
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sudo python3 ./umap.py -P /dev/ttyUSB0 -s 09:00:00:E:46
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bMaxPacketSize = 0xff
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Incident Identifier: F0856C91-7616-4DAC-9907-C504401D9951
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CrashReporter Key: 7ed804add6a0507b6a8ca9625f0bcd14abc6801b
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Hardware Model: iPhone3,1
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Date/Time: 2013-09-26 12:35:46.892 +0100
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OS Version: iOS 7.0 (11A465)
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panic(cpu 0 caller 0x882220a5): kernel abort type 4: fault_type=0x1,
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fault_addr=0x28
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r0: 0x00000003 r1: 0x889e70bd r2: 0x00000012 r3: 0xfffffffe
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r4: 0x9ae83000 r5: 0x00000003 r6: 0x00000000 r7: 0x87ff3d78
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r8: 0x00000000 r9: 0x00000000 r10: 0x00000000 r11: 0x00000001
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r12: 0x87ff3d50 sp: 0x87ff3d10 lr: 0x88af52bf pc: 0x88af51f8
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cpsr: 0x80000033 fsr: 0x00000005 far: 0x00000028
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Debugger message: panic
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OS version: 11A465
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Kernel version: Darwin Kernel Version 14.0.0: Tue Aug 13 21:39:05 PDT 2013;
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root:xnu-2423.1.73~3/RELEASE_ARM_S5L8930X
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iBoot version: iBoot-1940.1.75
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secure boot?: YES
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Paniclog version: 1
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Kernel slide: 0x0000000008200000
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Kernel text base: 0x88201000
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Epoch Time: sec usec
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Boot : 0x52441b69 0x00000000
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Sleep : 0x00000000 0x00000000
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Wake : 0x00000000 0x00000000
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Calendar: 0x52441bb5 0x00056497
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Panicked task 0x896f8d48: 12856 pages, 114 threads: pid 0: kernel_task
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panicked thread: 0x8023de90, backtrace: 0x87ff3a48
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lr: 0x88317889 fp: 0x87ff3a7c
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lr: 0x883181f7 fp: 0x87ff3ab0
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lr: 0x882b783b fp: 0x87ff3ad4
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lr: 0x882220a5 fp: 0x87ff3ba0
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lr: 0x8821c7c4 fp: 0x87ff3d78
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lr: 0x88af8687 fp: 0x87ff3da8
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lr: 0x8828b5bd fp: 0x87ff3dd0
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lr: 0x889d6d29 fp: 0x87ff3df0
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lr: 0x889da2f3 fp: 0x87ff3e18
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lr: 0x8828b5bd fp: 0x87ff3e40
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lr: 0x889da14f fp: 0x87ff3e7c
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lr: 0x88acb8e7 fp: 0x87ff3eb8
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lr: 0x88ac9815 fp: 0x87ff3ed4
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lr: 0x884b24d3 fp: 0x87ff3f60
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lr: 0x882cf869 fp: 0x87ff3fa8
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lr: 0x8821f05c fp: 0x00000000
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Fix Information
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A patch can be downloaded from the following location:
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http://support.apple.com/kb/HT1222
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NCC Group
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Research https://www.nccgroup.com/research
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Twitter https://www.twitter.com/NCCGroupInfoSec / @NCCGroupInfoSec
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Open Source https://github.com/nccgroup
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Blog https://www.nccgroup.com/en/blog/cyber-security/
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SlideShare http://www.slideshare.net/NCC_Group/
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For more information please visit <a href="http://www.mimecast.com">http://www.mimecast.com<br>
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