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签到天数: 2370 天 [LV.Master]伴坛终老
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* r1 I$ X! o/ X' S( I- m8 ?我现在对百度的新聊天工具进行了稍微深入的分析,再下一步的分析工作就是在汇编调试里面展开的了。先说下我发现的可能威胁:
6 {, B& l; A; N9 S+ o6 u1、Swf文件跨站漏洞
& H0 C8 X$ q4 R3 U在Baidu Hi 的安装文件夹里的MovieData文件夹里面有3个swf文件,分别是loginCarton.swf,videoConnectingBig.swf和videoConnectingSmall.swf。其中,loginCarton.swf的可能别利用漏洞最大,这点上百度不如腾讯,没有做好swf文件的内嵌工作,让swf文件暴露在外面。病毒可以感染并放入恶意的swf文件来覆盖他们。loginCarton.swf是baiduhi的启动画面,这是非常危险的,因为swf木马在网上非常流行。还有,病毒要获取这个目录非常简单,只要以system来读取注册表就好,路径会保存在注册表的[HKEY_LOCAL_MACHINE\SOFTWARE\3D SoftWare]下的"path"键值里面,如果修改注册表,人为改变该键值,可能引发更大的危机!5 r, Z) P s1 n7 A
* r3 o5 C8 P; X4 t, \) o3 A2、自动升级漏洞: K' v3 Q1 x, d0 _. l
该漏洞目前没有测试,不过应该将来会盛行的。因为目前大家的Baidu HI都是最新版,不需要升级。将来如果需要升级的时候,这个漏洞就很危险了。Baidu Hi 的升级文件在AutoUpdate文件夹里面,
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: r4 v1 `7 m! ]2 BBaiduHiUpdate.exe文件通过调用config.ini文件来升级,我们来看config.ini文件的代码:
) t# _# v: |* @9 I% }) V0 E$ ]$ v$ o[AutoUpdate]
* p9 a9 ~9 M% LConfigFileUrl=http://update.im.baidu.com/AutoUpdate/AutoUpdate.xml/ h4 A6 ?, F- k3 h
IsAutoUpdate=1
- x$ K6 z' y8 X" Y+ Y/ dConfigFileKey1=3F26F386EB827C141DF8FE539B7ECDF4; g- Y7 l+ e3 [! i
ConfigFileKey2=1285092571000000004 w2 f* N; |" _2 \8 s
LSTm_AutoUpdate=1206596754
. _0 m( ]5 l/ D$ |看来使用的是下载http://update.im.baidu.com/AutoUpdate/AutoUpdate.xml这个文件,我下载下来打开一看,这个文件和AutoUpdate文件夹里面的那个AutoUpdate.xml文件内容相同。代码都是如下的:$ d8 Y9 a+ t1 k6 M0 v5 z
<AutoUpdate version="1.0">
2 [$ T* O, u$ |<Updater version="1.0.0.8" url="http://update.im.baidu.com/AutoUpdate/updater48-49.cab" md5="8312201dc14e0ff595680f6bcf4d0fb1" hint="update 49">/ |. s; ^. ~' ^6 ?* K% G, h
<File name="atl71.dll" dest="updater:\" type="bin" operation="add" /> : T x; M; M# K4 i0 K
<File name="AutoInstall.exe" dest="updater:\" type="bin" operation="add" /> $ H+ h# k7 h. o2 z; `: v
<File name="AutoUpdateUtil.dll" dest="updater:\" type="bin" operation="add" />
c3 A: I$ W7 X- v1 F; N<File name="BaiduHiUpdate.exe" dest="updater:\" type="bin" operation="add" /> 0 |! _$ u" w/ H5 T# T. W' Y
<File name="Basement.dll" dest="updater:\" type="bin" operation="add" />
5 h$ ?. E9 V1 {8 N5 J<File name="config.ini" dest="updater:\" type="resource" operation="add" /> ! a2 c/ M Y' ?/ ?
<File name="msvcp71.dll" dest="updater:\" type="bin" operation="add" /> 9 W$ \( G' \, }6 ~1 H( t' B/ B
<File name="msvcr71.dll" dest="updater:\" type="bin" operation="add" /> / v0 ]; W& u8 T) A
<File name="resource.db" dest="updater:\" type="resource" operation="add" /> $ x9 E; X4 R+ l% k$ J
<File name="VersionInfo.xml" dest="updater:\" type="resource" operation="add" />
# e; I, a* c, V t0 {</Updater>
8 h6 i+ C6 d- i<Module name="BaiduHi" version="1.0.1.0" level="forcePrompt">- C, @$ A v& v8 y
<Upgrade versi hint="update 49" md5="f684d6220bb2771433410e482287cc58" url="http://update.im.baidu.com/AutoUpdate/upgrade48-49.cab">
. K1 o# e2 }% {1 l( _<File name="AppUtil.dll" dest="BaiduHi:\" type="bin" operation="add" /> 2 P" t0 F: [0 @# ~' c6 o" T
<File name="BaiduHi.exe" dest="BaiduHi:\" type="bin" operation="add" />
7 A$ `( R: a- e a) i& O<File name="Basement.dll" dest="BaiduHi:\" type="bin" operation="add" />
# ~ Q" E/ y7 q<File name="BugReport.exe" dest="BaiduHi:\" type="bin" operation="add" /> 3 C: c( O O( [
<File name="CSTransfer.dll" dest="BaiduHi:\" type="bin" operation="add" />
5 l( J0 X7 `' U<File name="HistoryExplorer.dll" dest="BaiduHi:\" type="bin" operation="add" />
8 o6 T, _1 a+ e<File name="ImEngine.dll" dest="BaiduHi:\" type="bin" operation="add" />
: f6 R2 W" X6 @* g<File name="ImStorage.dll" dest="BaiduHi:\" type="bin" operation="add" /> t8 ^7 I* l& T
<File name="LocalLog.dll" dest="BaiduHi:\" type="bin" operation="add" />
" A4 H r6 u: W/ q2 {3 m<File name="NetService.dll" dest="BaiduHi:\" type="bin" operation="add" /> 3 B3 |% u- {. D$ s, }' _6 |
<File name="RUDPLib.dll" dest="BaiduHi:\" type="bin" operation="add" />
9 m. _' H3 V/ E& H x<File name="SkinDLL.dll" dest="BaiduHi:\" type="bin" operation="add" /> # b- h& }( e+ @ n$ Z7 X
<File name="UPnPDll.dll" dest="BaiduHi:\" type="bin" operation="add" />
) t7 _. i, z( h3 K0 ]<File name="VersionInfo" dest="BaiduHi:\" type="resource" operation="add" />
# Q- H9 G1 C# B1 M9 m* `<File name="fmmgr.dll" dest="BaiduHi:\" type="bin" operation="add" /> 7 h& i2 J+ b4 |6 H
<File name="imcs.dll" dest="BaiduHi:\" type="bin" operation="add" /> / M8 V6 s2 m- z" S
<File name="uninst.exe" dest="BaiduHi:\" type="bin" operation="add" />
# C6 f) Z+ w# U% l9 Y</Upgrade>! K& `: }( l1 v
<FullPackage hint="update 49" md5="3af7588de47c7fdcb9ca5421de4c444c" url="http://update.im.baidu.com/AutoUpdate/fullpackage48-49.cab">) U, n0 T7 A c# h* G' [
<File name="AppUtil.dll" dest="BaiduHi:\" type="bin" operation="add" /> 9 M6 J2 S6 A9 f
<File name="BaiduHi.exe" dest="BaiduHi:\" type="bin" operation="add" /> 5 d2 b* K2 y( J5 x5 ?2 u
<File name="Basement.dll" dest="BaiduHi:\" type="bin" operation="add" />
, U6 p* w: _1 m4 W$ m& e! V+ f<File name="BugReport.exe" dest="BaiduHi:\" type="bin" operation="add" /> " O4 b( E; v8 K0 j
<File name="CSTransfer.dll" dest="BaiduHi:\" type="bin" operation="add" />
8 l, l2 V2 i. q8 p<File name="HistoryExplorer.dll" dest="BaiduHi:\" type="bin" operation="add" />
' W7 F& ?) ?- y9 A6 s$ H<File name="ImEngine.dll" dest="BaiduHi:\" type="bin" operation="add" /> K- M8 ~! l f1 [5 s& T7 W4 U5 o1 X
<File name="ImStorage.dll" dest="BaiduHi:\" type="bin" operation="add" />
' M7 s5 b4 i( \8 d& ^<File name="LocalLog.dll" dest="BaiduHi:\" type="bin" operation="add" />
& l2 l6 s% S4 K4 y$ E4 i<File name="MovieData\loginCarton.swf" dest="BaiduHi:\MovieData\" type="resource" operation="add" /> h) W9 h0 L. `9 V% ]+ {6 p
<File name="MovieData\videoConnectingBig.swf" dest="BaiduHi:\MovieData\" type="resource" operation="add" />
8 H% c' D3 b- I- E<File name="MovieData\videoConnectingSmall.swf" dest="BaiduHi:\MovieData\" type="resource" operation="add" /> ) N; f, o: A& f1 s( W/ ^4 w
<File name="NetService.dll" dest="BaiduHi:\" type="bin" operation="add" />
8 q; j% A7 @/ g P z3 Y7 \1 y2 q<File name="RUDPLib.dll" dest="BaiduHi:\" type="bin" operation="add" /> ; `- R8 w+ E; k, K
<File name="ServerConfig.dat" dest="BaiduHi:\" type="resource" operation="add" />
; r( s2 r' ^0 [% B: J<File name="SkinDLL.dll" dest="BaiduHi:\" type="bin" operation="add" /> 9 i2 ^+ Q, E. g" o- b4 T/ e" t. O: m2 A
<File name="SysCustomStatus.xml" dest="BaiduHi:\" type="resource" operation="add" />
8 D2 n' U( V" f' y3 @; I Y. A<File name="UPnPDll.dll" dest="BaiduHi:\" type="bin" operation="add" /> ( \* |( R" Q6 o+ ^# {
<File name="VersionInfo" dest="BaiduHi:\" type="resource" operation="add" /> + v: w, _3 _% V0 V# n+ B+ ^
<File name="atl71.dll" dest="BaiduHi:\" type="bin" operation="add" />
, y8 }& X6 G2 _" ]<File name="dbghelp.dll" dest="BaiduHi:\" type="bin" operation="add" />
( @; s z2 k5 Z. J( H<File name="fmmgr.dll" dest="BaiduHi:\" type="bin" operation="add" /> 5 h; w a& P$ p, Y) c; i
<File name="imcs.dll" dest="BaiduHi:\" type="bin" operation="add" /> 4 p6 f# @* m6 I9 P; F6 w
<File name="licence.txt" dest="BaiduHi:\" type="resource" operation="add" />
7 @2 Q. E0 b. W7 f<File name="mediactrl.dll" dest="BaiduHi:\" type="bin" operation="add" /> - C# P/ u2 A* S4 v) \% g' f
<File name="msvcp71.dll" dest="BaiduHi:\" type="bin" operation="add" />
7 Y# t% X* x. i5 {. {, g<File name="msvcr71.dll" dest="BaiduHi:\" type="bin" operation="add" /> K; [- e) B' s \1 i
<File name="resource.db" dest="BaiduHi:\" type="resource" operation="add" />
+ U0 c3 c+ R- f4 s; q* R% h<File name="riched20.dll" dest="BaiduHi:\" type="bin" operation="add" /> / ]9 e# `% i0 p1 k/ m6 h: [, k1 d
<File name="skin\default.db" dest="BaiduHi:\skin\" type="resource" operation="add" />
5 Y+ l0 D6 y7 S8 D<File name="skin\rose.db" dest="BaiduHi:\skin\" type="resource" operation="add" /> 3 k2 I! @ `: g% z# b) K5 X5 w
<File name="sound\msg.wav" dest="BaiduHi:\sound\" type="resource" operation="add" /> : y1 r/ @, q7 v: ?1 o/ I3 C
<File name="sound\online.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
D0 W# R; ~$ W. Z) W! Q<File name="sound\phone.wav" dest="BaiduHi:\sound\" type="resource" operation="add" /> % K# ?/ ~* [1 Y% y9 V
<File name="sound\snapshot.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
{. l# a) A( O7 J) |2 B$ v<File name="sound\system.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
" a# W; p* O. i1 S3 Z* K7 S5 X0 a5 I<File name="sysimage\FaceError.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" /> # J' n% @5 Q- v ` n
<File name="sysimage\FaceLoading.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" /> 2 Y4 ]4 X1 h* v; ~
<File name="sysimage\ImageError.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" />
0 `0 v2 @8 i' l* V5 h<File name="sysimage\ImageLoading.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" /> $ {! ~( d, H! A
<File name="uninst.exe" dest="BaiduHi:\" type="bin" operation="add" /> 5 B1 Z! b& i) n1 ?. {+ Y& O" S
<File name="zlib1.dll" dest="BaiduHi:\" type="bin" operation="add" />
. P- W O! \, E! V, r</FullPackage>9 s3 u9 a4 H; Y1 \" X
</Module>! t8 I" }, D" A0 r6 l! Y) ~& @! J( a
</AutoUpdate>3 ?5 F5 k+ @# K, k, H1 F( O
通过AutoUpdate.xml文件来下载http://update.im.baidu.com/AutoUpdate/updater48-49.cab ,我们可以通过构造恶意的config.ini,然后让程序下载我们构造的恶意AutoUpdate.xml,再让程序通过AutoUpdate.xml下载恶意构造好的cab安装包,释放。还是危害挺大的!
$ v- q' W8 Z4 t- {最后忠告大家,不要下载除官方以外任何地方的Baidu Hi !否则后够可能很严重,这次我发现的这两个漏洞的利用说容易也容易,说不容易也不容易,本人如上所说只是一点肤浅之见,没什么技术含量,只是觉得软件搞这么明文不好。提醒大家小心一点而已,没有别的意图,更没有哗众取宠的意思。 |
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