TA的每日心情 | 擦汗 6 天前 |
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签到天数: 2402 天 [LV.Master]伴坛终老
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: p% x4 Z7 w9 R$ R6 ]) g0 h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:$ \2 R" y0 R: ]* y* {% e2 B8 S4 A
1、Swf文件跨站漏洞" t. c9 |% H$ ^6 w
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!
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2、自动升级漏洞
! L/ v8 v" w) e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,$ X# F+ n" ?0 G$ u i1 g% |0 v
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5 b8 L/ t; d* }5 ]/ l& fBaiduHiUpdate.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:
$ V7 w& O' ~7 e$ D- M$ S& T4 }( z[AutoUpdate]
% D: ?4 L; ?$ x* E" h' m* b; T0 FConfigFileUrl=http://update.im.baidu.com/AutoUpdate/AutoUpdate.xml1 M9 O5 j& _; W1 ]
IsAutoUpdate=1
. z% g4 s, B! O5 ^1 q( d' oConfigFileKey1=3F26F386EB827C141DF8FE539B7ECDF4$ n. c* T3 T. e7 _, u0 u
ConfigFileKey2=128509257100000000& z5 \! r c( F, A% n
LSTm_AutoUpdate=12065967547 m7 U+ w: ?' P: W7 z
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:/ r! l. g8 s9 L& a! x
<AutoUpdate version="1.0">
- J/ ^# C! m {& Q& @<Updater version="1.0.0.8" url="http://update.im.baidu.com/AutoUpdate/updater48-49.cab" md5="8312201dc14e0ff595680f6bcf4d0fb1" hint="update 49">8 C0 y$ Q( O! N! X& Q: D( E3 Y! C$ B
<File name="atl71.dll" dest="updater:\" type="bin" operation="add" />
& f9 T8 |2 `7 I$ m% Q<File name="AutoInstall.exe" dest="updater:\" type="bin" operation="add" />
, r8 ?) s6 E |5 Q+ |<File name="AutoUpdateUtil.dll" dest="updater:\" type="bin" operation="add" />
3 T$ B3 O% Y- ]0 o6 `8 P' Q<File name="BaiduHiUpdate.exe" dest="updater:\" type="bin" operation="add" /> 2 |& d% U5 t5 Q/ p2 z$ g
<File name="Basement.dll" dest="updater:\" type="bin" operation="add" />
- k- |; w" J( ~<File name="config.ini" dest="updater:\" type="resource" operation="add" /> F/ K! m! e5 V h
<File name="msvcp71.dll" dest="updater:\" type="bin" operation="add" />
( o0 |/ w: g( q" u2 J* x, U: N: V$ V+ \<File name="msvcr71.dll" dest="updater:\" type="bin" operation="add" />
- P2 N4 y2 O& j2 g* |( \' q<File name="resource.db" dest="updater:\" type="resource" operation="add" />
( V% t% F6 L/ x, N" o' v9 ], V; ?<File name="VersionInfo.xml" dest="updater:\" type="resource" operation="add" />
' {" n: d% i1 F8 n5 s( d ?* X9 D/ X</Updater>
4 W- r& n* O" |6 F" D# F: J<Module name="BaiduHi" version="1.0.1.0" level="forcePrompt">
' N, e2 H& W0 y1 x. }3 T5 ^: Z<Upgrade versi hint="update 49" md5="f684d6220bb2771433410e482287cc58" url="http://update.im.baidu.com/AutoUpdate/upgrade48-49.cab">8 y' F2 b' {# L) u; l
<File name="AppUtil.dll" dest="BaiduHi:\" type="bin" operation="add" />
9 R6 R9 F. ]* {" W/ t5 T" j<File name="BaiduHi.exe" dest="BaiduHi:\" type="bin" operation="add" />
* [9 }" h8 I4 \$ w( [5 ^ w' ?$ \: A<File name="Basement.dll" dest="BaiduHi:\" type="bin" operation="add" /> 0 }" Y5 m% i" v. h) p
<File name="BugReport.exe" dest="BaiduHi:\" type="bin" operation="add" />
, @( ~5 a. T+ {& l' e<File name="CSTransfer.dll" dest="BaiduHi:\" type="bin" operation="add" /> 6 g2 j; K/ N( V$ _- \) p
<File name="HistoryExplorer.dll" dest="BaiduHi:\" type="bin" operation="add" />
/ w6 W4 Q$ L. l! g6 y2 s<File name="ImEngine.dll" dest="BaiduHi:\" type="bin" operation="add" />
& B! o. r3 P/ Y2 \: z/ x<File name="ImStorage.dll" dest="BaiduHi:\" type="bin" operation="add" />
9 [0 S* Z/ {8 n+ w) i<File name="LocalLog.dll" dest="BaiduHi:\" type="bin" operation="add" /> - }( x: {/ Q" `+ L- V- V4 V
<File name="NetService.dll" dest="BaiduHi:\" type="bin" operation="add" /> : a! a" Y0 R# f, O; T! q2 y: O1 @
<File name="RUDPLib.dll" dest="BaiduHi:\" type="bin" operation="add" />
& R: _% ~/ m0 `3 t( M' T<File name="SkinDLL.dll" dest="BaiduHi:\" type="bin" operation="add" />
; i- [# F' O5 w<File name="UPnPDll.dll" dest="BaiduHi:\" type="bin" operation="add" /> * Z* I- Q# K+ _$ Z# x( x
<File name="VersionInfo" dest="BaiduHi:\" type="resource" operation="add" /> ! `9 Q# r( z- p( }* q- U' @. w
<File name="fmmgr.dll" dest="BaiduHi:\" type="bin" operation="add" />
6 h m, _* F% \- N% x" n: S<File name="imcs.dll" dest="BaiduHi:\" type="bin" operation="add" />
3 w/ C9 I- B& m: N6 n& P<File name="uninst.exe" dest="BaiduHi:\" type="bin" operation="add" />
" s% v" v! [1 e% ?5 q& W1 S</Upgrade>& z9 ]" }; V3 T0 ]% p' \
<FullPackage hint="update 49" md5="3af7588de47c7fdcb9ca5421de4c444c" url="http://update.im.baidu.com/AutoUpdate/fullpackage48-49.cab">6 O! b$ R: S: I
<File name="AppUtil.dll" dest="BaiduHi:\" type="bin" operation="add" /> 6 g" {% c6 G. v. l/ L* s% H
<File name="BaiduHi.exe" dest="BaiduHi:\" type="bin" operation="add" />
/ l S; h) P% f+ e* _' \$ @<File name="Basement.dll" dest="BaiduHi:\" type="bin" operation="add" /> ( v6 q/ Z- A S2 ~) V
<File name="BugReport.exe" dest="BaiduHi:\" type="bin" operation="add" /> 9 S1 P4 {; b/ h; ?% ]
<File name="CSTransfer.dll" dest="BaiduHi:\" type="bin" operation="add" /> 5 c# h) {/ Q1 E! K( m! {
<File name="HistoryExplorer.dll" dest="BaiduHi:\" type="bin" operation="add" /> - o; S. S7 m% Y0 |5 W$ L/ F0 Y
<File name="ImEngine.dll" dest="BaiduHi:\" type="bin" operation="add" /> # m0 r$ q3 Z/ n- ~6 @- S
<File name="ImStorage.dll" dest="BaiduHi:\" type="bin" operation="add" /> , J$ d! l. M+ w
<File name="LocalLog.dll" dest="BaiduHi:\" type="bin" operation="add" /> 3 T8 C% U3 T1 B8 P5 E8 V4 L
<File name="MovieData\loginCarton.swf" dest="BaiduHi:\MovieData\" type="resource" operation="add" />
$ O) H8 T D( G+ L( |0 G<File name="MovieData\videoConnectingBig.swf" dest="BaiduHi:\MovieData\" type="resource" operation="add" />
( I$ L4 X: y4 ]6 g( b* I9 L<File name="MovieData\videoConnectingSmall.swf" dest="BaiduHi:\MovieData\" type="resource" operation="add" /> 4 v \& o9 q f
<File name="NetService.dll" dest="BaiduHi:\" type="bin" operation="add" />
' i0 c8 J2 k' k j% o2 V; t X<File name="RUDPLib.dll" dest="BaiduHi:\" type="bin" operation="add" /> " D7 D1 }1 Z/ P( p7 u l( c- ~: I
<File name="ServerConfig.dat" dest="BaiduHi:\" type="resource" operation="add" />
# [$ Y3 I& [1 q( C) c& b<File name="SkinDLL.dll" dest="BaiduHi:\" type="bin" operation="add" />
) J2 b1 s" v1 ]( U7 S, C" n<File name="SysCustomStatus.xml" dest="BaiduHi:\" type="resource" operation="add" /> 2 }/ e& b7 ^ B
<File name="UPnPDll.dll" dest="BaiduHi:\" type="bin" operation="add" />
# f4 d: c0 `- y5 E7 s; d& e<File name="VersionInfo" dest="BaiduHi:\" type="resource" operation="add" /> % ?) ]' X- C( U% D/ S: _
<File name="atl71.dll" dest="BaiduHi:\" type="bin" operation="add" /> ! d* Q3 l* m3 H" f2 ]: _
<File name="dbghelp.dll" dest="BaiduHi:\" type="bin" operation="add" />
, R) J; |/ |" i3 _' f' F<File name="fmmgr.dll" dest="BaiduHi:\" type="bin" operation="add" /> 8 {/ c' a, n, j0 B: B2 F( _
<File name="imcs.dll" dest="BaiduHi:\" type="bin" operation="add" />
" X# _& Z7 o* ~<File name="licence.txt" dest="BaiduHi:\" type="resource" operation="add" /> 5 j) v+ L+ I# \& J
<File name="mediactrl.dll" dest="BaiduHi:\" type="bin" operation="add" />
' v9 X9 J8 y4 i( J. l( Y1 u6 b1 o<File name="msvcp71.dll" dest="BaiduHi:\" type="bin" operation="add" /> : _" \/ C! {$ {' W
<File name="msvcr71.dll" dest="BaiduHi:\" type="bin" operation="add" /> ( S% w" ?$ n, y, {9 l# a( t
<File name="resource.db" dest="BaiduHi:\" type="resource" operation="add" />
2 k! I" c) W; R2 P+ t, O2 l. x, ?<File name="riched20.dll" dest="BaiduHi:\" type="bin" operation="add" /> 6 O7 K9 {9 B) v: K
<File name="skin\default.db" dest="BaiduHi:\skin\" type="resource" operation="add" />
* M( ~7 c2 \) V' S9 O8 ]8 }<File name="skin\rose.db" dest="BaiduHi:\skin\" type="resource" operation="add" /> . D& q" E4 ]0 x. a
<File name="sound\msg.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
2 i) {/ G" E% R7 D1 o1 q<File name="sound\online.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
; C8 s' r) Z9 e" r$ {<File name="sound\phone.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
9 I! ]7 ]6 Z C) }: e9 O<File name="sound\snapshot.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
; p' m( z$ n" t! D( u<File name="sound\system.wav" dest="BaiduHi:\sound\" type="resource" operation="add" />
6 H3 n% D' E! l<File name="sysimage\FaceError.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" />
4 F9 ~) m# [! Z5 p1 H9 j<File name="sysimage\FaceLoading.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" />
' ?. V$ ~$ @3 w3 e& j, w) M! N d<File name="sysimage\ImageError.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" /> . d" w: O8 k, X, {& T& ` ^* `
<File name="sysimage\ImageLoading.gif" dest="BaiduHi:\sysimage\" type="resource" operation="add" />
! d. @4 D5 B' {<File name="uninst.exe" dest="BaiduHi:\" type="bin" operation="add" /> ; w3 [4 k5 N/ `& ^4 n+ R; `) X
<File name="zlib1.dll" dest="BaiduHi:\" type="bin" operation="add" />
/ |6 Y% O9 T* w4 J) j</FullPackage>, o/ p* e, a. h& J$ E
</Module>
m a# k* u, p2 J* P& }5 K! t</AutoUpdate>. P& V( S0 V# Z& K/ i# w4 D
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!1 @. C/ S" p# Q& U7 K0 Z
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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