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
39 views

Floppy disk partition showed up when USB Flash drive inserted

For one of my course's midterm lab portion, the professor provided us flash drives to put our project in. Everyone had their named labeled on one, so she gave me the last one left out, which had a ...
14
votes
1answer
1k views

Why do exploit kits use droppers?

I've been looking into the structure of the online criminal underground, which consists of exploit kits, droppers, and malware payloads. What is the function of the dropper in this pipeline? Why ...
1
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2answers
67 views

Can BadUsb only be delivered via USB?

BadUsb works by infecting a computer when plugged into the USB port. Is it also possible for an attacker who gains control of a system, such as remote access, to then infect any connected USB ...
0
votes
1answer
53 views

Pivoting through XSS

I'll start off by saying this is a purely academic question; I'm trying to fill some gaps in my knowledge. If a website is vulnerable to XSS, and the target host is another machine that can browse to ...
5
votes
1answer
841 views

What kind of vulnerability would this exploit?

We're currently having our website pentested, and looking through our logs, a cookie we set (our allowCookies cookie) has had the value set to ...
1
vote
1answer
174 views

Exploiting shellshock

On doing some digging on the shell shock vulnerability, I found that being able to run the exploit via a remote location depends on whether the attacker actually knows the exact cgi script which uses ...
2
votes
1answer
157 views

Why “() { :;};”?

I was wanting to understand why the code below serves as a proof-of-concept for telling me whether my server is vulnerable or not. Moreover, how does the vulnerability work at lower-level? $ env ...
2
votes
2answers
56 views

Steps after getting hit with malware or browser exploits on Xubuntu

Well, today I was browsing the internet and I suddenly got redirected to a chinese hosted malware site and firefox started going crazy. I checked the url on virustotal with my phone and it found other ...
1
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1answer
34 views

How can non-secure or non-https-only cookie affect security of an HSTS website?

If a website is running on HSTS and it is setting about 20 cookies. Out of those 20 cookies 15 are both secure and https-only and remaining 5 are neither. In this scenario, in what all ways can we ...
-3
votes
1answer
75 views

Feedback Form Exploitation possible or not? [closed]

how an attacker can exploit the below provided feedback form in a company website containing the company’s domain? the feedback form does not store data into a database. The server side code only ...
8
votes
1answer
477 views

What does this attempted Shellshock exploit do, and has my website been compromised?

I grepped my Apache's access.log today for the now infamous () { string, and besides a bunch of what seemed like pings to check how many servers are vulnerable, I found this attempt, which looked like ...
3
votes
1answer
102 views

Does FCGId use environment variables? (Or is it a possible attack vector for CVE-2014-6271/7169?)

According to Red Hat httpd (attack vector): CGI scripts are likely affected by this issue: when a CGI script is run by the web server, it uses environment variables to pass data to the ...
-4
votes
0answers
130 views

How to exploit bash shellshock expoit? [duplicate]

I am intersted how it works, can anyone to show me how to exploit this? I just wana learn how to do that, please do not spam if you can't help.
6
votes
2answers
5k views

How does the ShellShock exploit work over OpenSSH?

The three options listed in the CERT release (AcceptEnv TERM and SSH_ORIGINAL_COMMAND) are all server-side options. If none of these are set on a host (and no http vector is available) is the host ...
171
votes
5answers
87k views

What is a specific example of how the Shellshock Bash bug could be exploited?

I read some articles (article1, article2, article3, article4) about the Shellshock Bash bug (CVE-2014-6271 reported Sep 24, 2014) and have a general idea of what the vulnerability is and how it could ...
-2
votes
1answer
50 views

Escape from <script> to cause a XSS (XSS when reflection is already under <script>) [duplicate]

I am trying my level best to solve this issue i am totally not able to create a XSS i still thinks it to be a vulnerability and i think it is exploitable. I am frustrated around it for 8 days . Please ...
0
votes
1answer
35 views

What is the difference between XSS and Cross Site Flashing? [duplicate]

I want to know the basic differences between XSS and XSF
-1
votes
2answers
87 views

XSS InJavaScript

Recently i was figuring out a web application and found that the url is reflected among the source of the page which make it bit obvious for xss but the input from url which is reflected on source is ...
1
vote
1answer
62 views

Am I safe to see a thumbnail of a downloaded images on Ubuntu 14.04?

I have downloaded an image that someone has uploaded to my website with a public upload form. My intention was to copy the file in a virtual machine and see the image from there; unfortunately, on ...
3
votes
2answers
79 views

Is there any danger in allowing users to host PDF/RTF/DOC files on my web server?

If I were to allow users to host arbitrary PDF/RTF/DOC files on my server all under the same name, but with different query strings would there be anything to worry about? I've heard of PDF/RTF ...
3
votes
1answer
145 views

Closely spaced failed logins in auth.log

I have a raspberry-pi (running GNU/Linux) and I recently allowed my router to forward port 22 (ssh) to the raspberry-pi so that I could log in while away from home. I then noticed a bunch of ...
31
votes
9answers
4k views

Why is it a security problem not to update one's browser?

Is it in general a security problem not to update your browser. Firefox constantly prompts me to update my browser, but how dangerous is it to not update? As part of this question, I would like to ...
-1
votes
1answer
62 views

Why should I use ROP for exploit dev? [closed]

Return Oriented Programming is a technique for bypassing DEP which based on ret2libc.. ROP is used for formatting the API function parameters in order to make a reliable shellcode.. I dont get ...
2
votes
4answers
153 views

Vulnerability exploitation in Java

I am not intimately familiar with Java, so this could be a stupid question. In a C program I can find buffer overflows or may be a ROP based exploit to run custom code. How is it done in the context ...
0
votes
1answer
92 views

Are shell scripts / bash inherently less secure than other (script) languages such as python?

Are shell scripts / bash suitable for any kind of task as long as the developer(s) write correct, security bug free scripts? Or are shell scripts / bash less advisable for some tasks such as parsing ...
18
votes
1answer
455 views

EICAR Virus Test maliciously used to delete logs?

Today at work I was asked to test our anti-virus software on our Linux servers. I attempted to create a text file containing the EICAR Virus Test signature. The file was deleted instantly, ...
0
votes
1answer
204 views

Which shell is more secure, mksh or bash?

Which shell is more secure, mksh or bash? There has been some discussion pointing into the direction, that mksh is more secure. How to come to that conclusion? By looking which code was more audited ...
0
votes
1answer
468 views

Add third party exploit to metasploit under kali linux 1.0.6

I want to add custom exploits in metasploit running inside kali linux system version 1.0.6. I start using this methode : cd /root/.msf4 cd modules mkdir -p exploits/windows/browser mv ...
1
vote
0answers
49 views

Shared clipboard on Linux without keylogging, etc. vulnerabilities?

X has some serious security problems, not the least of which is that any program using a given display can log keystrokes from any other program on that display. (This can be demonstrated easily using ...
7
votes
5answers
608 views

Can the BadUSB exploit be prevented?

Recently I read a few things about the BadUSB exploit, for example: http://arstechnica.com/security/2014/07/this-thumbdrive-hacks-computers-badusb-exploit-makes-devices-turn-evil/ My understanding ...
2
votes
4answers
211 views

How should I defend against zero-day attack on SSH?

Vulnerabilities are discovered everyday. The recent Heart bleed attack caught many people off guard. I was wondering if a serious flaw was to be discovered that allows unfettered access to SSH, how ...
2
votes
1answer
167 views

is computrace a permanent backdoor?

I was reading about CompuTrace and this thing is pretty much a backdoor and irremovable. It's in the firmware, in the BIOS and survives formatting and even hard drive change and OS reinstalls. Some ...
1
vote
1answer
144 views

How do you stop a hacker with no IP and a dot for their HOST

The entry below is from the visitors log in c-panel Host: . /specific legimate-wordpress-post/ Http Code: 503 Date: Jul 24 09:28:06 Http Version: HTTP/1.1 Size in Bytes: 1118 Referer: ...
1
vote
2answers
109 views

the dangers of internet forums - what is FUD, what is not

I just visited a forum and a member knew what OS I was running without me saying anything (a not TOO common distro of linux). Now I'm not sure how he exactly he might have done it, or what information ...
0
votes
0answers
125 views

Exploit circulating Facebook with a .pnh file embedded in a <img> tag

Not sure how long this link will be up, but this is the page where users get redirected after trying to read a fake news post in someone timeline. [WARNING: ACCESS IN A CONTROLLED ENVIRONMENT] ...
3
votes
1answer
640 views

How can the OpenSSL CCS Injection vulnerability (CVE-2014-0224) be exploited?

Just curious how this one works in practice and if it's as much of a risk as has been made out? It says you actively require a MiTM scenario, which is understandable, but then what are the steps to ...
5
votes
3answers
361 views

Why does printf() vulnerability require 4-bytes of junk data? - “Hacking: The Art of Exploitation”

I've been reading "Hacking: The Art of Exploitation 2nd Ed." and I hit a part that's not explained clearly enough for me. In the section "Writing to an Arbitrary Address" Jon Erickson creates a ...
5
votes
0answers
36 views

Why does printf() vulnerability require 4-bytes of junk data? - “Hacking: The Art of Exploitation” [duplicate]

I've been reading "Hacking: The Art of Exploitation 2nd Ed." and I hit a part that's not explained clearly enough for me. In the section "Writing to an Arbitrary Address" Jon Erickson creates a ...
2
votes
2answers
150 views

How do I make a working example of a “Dangling Pointers” exploit? (or where do I find it online)

I was recently reading about buffer overflows and dangling pointers. I read "Smashing the stack for fun and Profit " by Aleph1 and that paper was really clear and concise in explaination. On the ...
0
votes
1answer
97 views

CSRF vulnerability in CGI/shell script web interface of hardware

I have a web interface to a hardware that is primarily used to reboot the hardware. Reboot can be done only by authenticated user.The web interface is written in CGI/shellscript. It does not use any ...
0
votes
1answer
73 views

Is API hooking done by a process in a shared page, visible to all other processes?

Assume, I have an executable which hooks the API CreateFileW located in Kernel32.dll which is shared globally across the system for all other processes. From hooking I mean, that I have overwritten ...
-2
votes
1answer
81 views

Proccess to exploit an OS vulnerability [closed]

What are the steps to use an exploit on an OS vulnerability? I tried the popular ms08-067 on an XP machine, following a guide found on the internet, discovering Metasploit etc., but I can't figure ...
0
votes
2answers
58 views

What type of probing sends GET /“ data ” to a server?

During monitoring of webserver logs I've stumbled upon those standard probings for wordpress exploits etc, like No route found for "GET /wp-login.php" (uncaught exception) No route found for "GET ...
1
vote
3answers
88 views

iPhone 5c iOS 7.1 deleted video recovery?

Can a video that was deleted from an iPhone 5c running iOS 7.1 be recovered? 1) the video was not in the camera roll 2) the video was deleted 3 weeks before seizure of device 3) app used to ...
1
vote
2answers
204 views

Is it illegal to publish an exploit against a known vulnerability in US?

Is it illegal to publish an exploit against a known vulnerability in US? The exploit could be published in one's blog or places like exploit-DB. It seems that in countries like Germany and France such ...
2
votes
2answers
1k views

Is OpenSSL CCS Injection (CVE-2014-0224) critical?

Recently the CCS Injection was discovered in OpenSSL (CVE-2014-0224) http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0224. It allows man-in-the-middle attackers to consequently hijack sessions ...
1
vote
4answers
293 views

How do exploits and payloads work together?

I knew about the metasploit framework since a few good years ago, but I never really got into it. I have some knowledge when it comes to networks, but I am not a PRO. I've tested some things with ...
0
votes
3answers
135 views

Practicing pentesting locally

After watching videos and downloading just about every possible pen-testing tool out there to play around with and learn. How do you setup test beds and practice scenarios to crack? With RE people ...
1
vote
2answers
136 views

Heap spray against 64-bit processes - possible?

Are heap spray exploits possible, if the process we're attacking is a 64-bit process? Naively, it seems like the 64-bit address makes it difficult to mount a heap spray: to fill all (or a significant ...
31
votes
3answers
11k views

How do you stop a hacker when their IP address is 0.0.0.0?

Wordfence reports the following visitor: An unknown location at IP 0.0.0.0 visited 4 hours 45 mins ago IP: 0.0.0.0 Browser: Baiduspider version 2.0 Mozilla/5.0 (compatible; Baiduspider/2.0; ...