技術(shù)分析：“厄運(yùn)cookie”漏洞（CVE-2014-9222）解密

簡(jiǎn)單總結(jié)

1) 最初的執(zhí)行是從地址0xbfc00000開(kāi)始的 我們可以通過(guò)下面操作來(lái)驗(yàn)證：

atgobfc00000   BootbaseVersion: VTC_SPI1.26 |  2012/12/2616:00:00 RAM: Size= 8192 Kbytes Found SPIFlash 2MiB Winbond W25Q16 at 0xbfc00000 SPI FlashQuad Enable Turn offQuad Mode   RASVersion: 1.0.0 Build 121121 Rel.08870 System   ID: $2.12.58.23(G04.BZ.4)3.20.7.020120518_V003  | 2012/05/18   Press anykey to enter debug mode within 3 seconds. ......... EnterDebug Mode

2) zynosbootloader 從地址0×80000000開(kāi)始的。在執(zhí)行的前一階段它會(huì)解包和解壓。如下所示，這并不完全是在ras固件的0x14C33鏡像

cawan$binwalk ras   DECIMAL       HEXADECIMAL     DESCRIPTION -------------------------------------------------------------------------------- 61315         0xEF83          ZyXEL rom-0 configuration block,name: "dbgarea", ... 61564         0xF07C          ZyXEL rom-0 configuration block, name:"dbgarea", ... 85043         0x14C33         LZMA compressed data, properties: 0x5D... 118036        0x1CD14         Unix path: /usr/share/tabset/vt100: 118804        0x1D014         ZyXEL rom-0 configuration block, name:"spt.dat", ... 118824        0x1D028         ZyXEL rom-0 configuration block, name:"autoexec.net", ... 128002        0x1F402         GIF image data, version"89a", 200 x 50 136194        0x21402         GIF image data, version"89a", 560 x 50 244317        0x3BA5D         Neighborly text, "neighbor ofyour ADSL Router that ... 281224        0x44A88         Unix path: /I/J/L/M 328173        0x501ED         Copyright string: "Copyright (c)2001 - 2012 TP-LINK ... 350259        0x55833         LZMA compressed data, properties:0x5D, ... 415795        0x65833         LZMA compressed data, properties:0x5D, ...