Buffer Overflow & Format String

This is really old archive, it’s almost three years since January 2007. But, i guess this will really be useful to start learning. Check this out.

A Day to Shutdown Indonesian Core Routing

Can you imagine our indonesian internet core routing to be shutted down? None can browse their email, open facebook, or just search through google. Can you imagine indonesian internet banking stopped working for a while? Automatic Teller Machine (ATM) won’t work to response your request? That’s all just the lowest risk when core routing to be compromised.

Can you imagine when your confidential data to be sniffed without none notice it? Can you imagine when your username and password to be stealed? Oh that’s not big deal huh? But try to imagine your banking transaction to be intercepted and modified, yeah that’s the real fear on digital world. Hell yeah, this paper explains you how that problems are possible. This paper try to tell you how weak our indonesian core routing infrastructure, check it out!

Another FreeBSD Root Exploit Leaked!

The latest version of freebsd is found to be vulnerable. This vulnerability is found is run time link editor (rtld) which can be tricked to accept LD variables even on setugid binaries. You might see this flaw by analyzing this exploit.

With this leaked exploit, it’s more than 10 exploitable vulnerability leaked to public this year (2009)! So it’s that true if freebsd as secure as what people said?!

Web Backdooring & Keylogging

Thinking how to backdoor & keylog website in unusual way is something that fun to be implemented. Kiddies usually use public backdoor to come back to compromised server or website, dumping the database, and cracking hash of confidential information likes password and CC number. Public backdoor is somewhat easy to be detected by administrator while hash cracking sometimes gives no result.

Modifying source code of website to be a backdoor and keylogger is not kind of new technique, but just few kiddies know about this. By modifying the source code, we can make more invisible backdoor than using public ones. We also can record confidential information likes password and CC number in plaintext, so we don’t have to crack it. I have implemented this technique in phpbb3, modifying its source code become backdoor & keylogger. This concept can be used to modify ecommerce application so just try to imagine when your CC number being stolen.

Download my paper, presentation, and phpbb3 patch which has been presented in STIMIK Palcomtech Palembang.

idsecconf 2009 Call For Paper

Kami dari komite idsecconf 2009 memberi kesempatan pada rekan-rekan penggiat keamanan komputer di seluruh Indonesia untuk berpartisipasi lewat penyerahan paper. Topik yang kami cari adalah seperti di bawah ini:

* Web hacking
* Wireless hacking
* Metode Penetration testing
* Forensic dan Anti Forensic
* Kriptografi
* Fuzzing
* Exploit writing
* System hardening
* Lock Picking
* Open Hardware Implementation

Jika anda memiliki judul paper diluar cakupan topik diatas, kami masih terbuka untuk mempertimbangkannya selama masih berkaitan dengan security.

Format paper adalah file Open Office Writer dengan ukuran halaman “Letter” Gambar bisa langsung disisipkan ke dalam dokumen atau dibuat terpisah. Format gambar adalah PNG dengan ukuran dimensi maksimal (lebar x tinggi ) 640 x 480 pixel dengan resolusi 72 pixel per inch. Jika nama file dipisahkan, mohon nama file dirujuk dari naskah. Setiap gambar harap disertai keterangan secukupnya.

Naskah yang dikirimkan juga sudah harus mencakup:

# Nick, email dan nomer telepon yang bisa dihubungi
# Biografi singkat, afiliasi, dan achievement (Maksimal 250 Kata).
# Rangkuman dari Persentasi (Abstraksi)(Maksimal 1250 Kata)
# Peralatan Pendukung yang dibutuhkan (video, internet, wireless, audio, etc.)
# Durasi yang di butuhkan (60 menit, 90 menit, 120 menit)

Pengiriman naskah ditujukan ke e-mail address: submitHAPUSHURUFBESAR@idsecconf.org dan
diterima paling lambat Jumat, 18 September 2009.

Keputusan penerimaan atau penolakan paper adalah sepenuhnya wewenang komite idsecconf 2009 dan tidak bisa diganggu gugat. Bagi yang papernya diterima, akan menerima pemberitahuan tertulis lewat e-mail untuk persiapan presentasi on-stage pada acara idsecconf 2009.

Kami tunggu partisipasi anda semuanya!

salam,

komite idsecconf 2009

Serious security bug found in Windows Vista

An independent security consultant publicized this week the details to a critical flaw in the server message block version 2 (SMB2) component of Microsoft’s Windows Vista, Windows Server 2008, and the release candidate for Windows 7.

The researcher, Laurent Gaffié, claimed in his advisory that the vulnerability causes a Blue Screen of Death, a pernicious crash on Windows system, but other researchers have subsequently concluded that the flaw is actually remotely exploitable, a more serious issue.

Microsoft acknowledged the flaw on Tuesday in an advisory. The flaw does not affect the latest version of Windows 7, Windows Server 2008 R2, nor Windows XP, the company stated. Microsoft took the researcher to task for disclosing the information before it fixed the security issue.

Yet, Gaffié argued that the disclosure was fair. The software company should have done more software quality assurance (SQA) on the networking components, he said in an e-mail interview with SecurityFocus. If they did, they would have easily found the issue — it took his fuzzer only 15 packets to crash the component, he said.

“So I personally think the one who has been irresponsible is Microsoft for shipping this driver on any Server 2008, Vista, and Windows 7 (system) without doing any SQA and security review,” he responded.

Gaffié said he notified the company, but had a typo in the e-mail address.

The flaw was disclosed on Monday, the day before Microsoft’s regularly scheduled patch day. The software giant issued five patches for eight vulnerabilities, including three flaws in the company’s TCP/IP networking stack. Other flaws affected Windows’ Javascript engine and its Windows Media components.

While Microsoft has not released a fix for the issue, the software giant recommended that administrators disable SMB version 2 or block the specific TCP ports (139 and 445) used by the file-sharing feature.

Source : http://www.securityfocus.com/brief/1009

All Linux Kernel Are Targeted

Yupe, that’s true when sock_sendpage() is discovered to be vulnerable by Tavis Ormandy and Julien Tinnes. The function is vulnerable to NULL pointer dereference that can be exploited to escalate priviledge to be root. Most of linux kernel are reported to be vulnerable. Exploit to take advantage of this flaw has been developed and spreaded freely on internet. The exploit can be used to bypass security restriction like SElinux.

http://milw0rm.com/exploits/9435
http://milw0rm.com/exploits/9436
http://milw0rm.com/exploits/9479
http://milw0rm.com/exploits/9545

Download the exploit, compile and execute! BOOMMM It’s root! Finally, this post is a little bit late :D.

PulseAudio Owns My Ubuntu Intrepid

It just fun to try exploiting pulseaudio to gain root priviledge, well my Ubuntu Intrepid is exploitable.

Ubuntu Pwned

Searching more about linux, i find an exploit to attack RHEL family with SELinux enabled here. So, is that true linux more secure than windows?? The fact which makes linux more secure is the people behind the machine. So many linux administrators is much more skilled than windows ones.

Anti-Computer Forensics

DEFINITION
Anti-forensics has only recently been recognized as a legitimate field of study. Within this field of study, numerous definitions of anti-forensics abound. One of the more widely known and accepted definitions comes from Dr. Marc Rogers of Purdue University. Dr. Rogers uses a more traditional “crime scene” approach when defining anti-forensics. “Attempts to negatively affect the existence, amount and/or quality of evidence from a crime scene, or make the analysis and examination of evidence difficult or impossible to conduct”.

A more abbreviated definition is given by Scott Berinato in his article entitled, The Rise of Anti-Forensics. “Anti-forensics is more than technology. It is an approach to criminal hacking that can be summed up like this: Make it hard for them to find you and impossible for them to prove they found you.” Interestingly, neither author takes into account using anti-forensics methods to ensure the privacy of one’s personal data.

Sub-Categories
Anti-forensics methods are often broken down into several sub-categories to make classification of the various tools and techniques simpler. One of the more widely accepted subcategory breakdowns was developed by Dr. Marcus Rogers. He has proposed the following sub-categories, data hiding, artifact wiping, trail obfuscation and attacks against the CF (computer forensics) process/tools. Read the rest of this entry »

Web & Wireless Hacking

This is my presentation in STIMIK Dipanegara Makasar. I try to describe Web and Wireless exploitation conceptually & technically. This presentation consist of:

  • Web Hacking; I try to describe top 3 web exploitation, SQL Injection, File Inclussion, and Cross Site Scripting (XSS). My explanation are including SQL injection in login form, SQL injection in URI parameter, Local File Inclussion, Remote File Inclussion, DOM based XSS, Non-persistent XSS, and persistent XSS.
  • Wireless hacking; I try to describe how to do war driving and how to exploit wireless network. Exploiting wireless network includes how to spoof MAC address, creating Rogue AP, Cracking WEP, Cracking WPA-PSK, and Denial of Service (DoS).

This presentation is not including how to defend that kind of attacking, but i’m sure this presentation is cool enough to start learning Web & Wireless Hacking. Download my presentation here.

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