An attempt by a threat to exploit a weakness in a system.

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454 views

Contract requires me to work with sensitive IP, severe penalties for loss of data to 3rd parties. Some protection pointers please

Background: The company I will be working for as a consultant has developed IP which could potentially be worth billions. The confidentiality clause in the contract has penalties for breaching the ...
7
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7answers
1k views

Facebook account keeps getting hacked, can't seem to figure out why or how?

One of my mate, she has a lot of friends on Facebook, uses it for marketing. Her account keeps getting broken into. Her password gets reset and/or gets locked for changing resetting password too many ...
7
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3answers
719 views

What prevents this exploit from working (unix SUID)?

If I have a user on a unix system where Im allowed to create new files, what prevents me from downloading an executable file onto that system which is already SUID'ed to root on a different system? ...
7
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4answers
831 views

Security attacks on PHP web applications

I know about following security attacks on php applications (html,php,js). XSS SQL Injection CSFR Session Hijacking /Fixation Code Injection Remote file injection Should i know about any other or ...
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3answers
4k views

Why is it so hard to trace origins of DDOS attacks?

According to the July 2009 cyber attacks Wikipedia article, US & South Korean governments suffered a DDOS attack on their websites. However, up till now they have not been able to find any ...
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5answers
6k views

How To Protect Tomcat 7 Against Slowloris Attack

I'm using Apache Tomcat 7 to run my webapp on Linux. I scanned it by Acunetix and it's telling me that my webapp is vulnerable to "Slow HTTP Denial of Service Attack". How can I protect it? Acunetix ...
7
votes
2answers
441 views

How stack smashing is prevented?

I just read AlephOne's paper on smashing the stack, and implemented it on my machine (Ubuntu 12.04), it was a bit old so had to take a lot of help from the internet but I enjoyed it. Now, I want to ...
7
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3answers
266 views

Is it dangerous to place ~/ssh/config on GitHub?

I am used to version control most of my dot files and push them to a repository on GitHub. I would also like to add ~/.ssh/config to have an up-to-date configuration on all machines. Could an ...
7
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4answers
248 views

Security papers or material focusing on the industrial control systems (SCADA)

Anyone know a good site or a list of resource to start to know issue related to the security of SCADA system ?
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1answer
1k views

How do I stop attack on my email id from hackers?

We have an email id, info@<ourdomain>.com This email id is being hacked frequently and mails are sent from this email id, Following is the example of one such email. From: ...
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2answers
7k views

How can someone hack my PC if I am connecting to the internet through NAT?

If I own a private IP address, 192.168.2.1 for the sake of it, and I am physically connected to my router, which it's internal interface is 192.168.2.254 and it's external interface is some public IP ...
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5answers
436 views

Is there anything I can do about IDN homograph attacks?

I have been reading about IDN homograph attacks, and I cannot think of any better way than Tell my users not to trust emails asking for passwords, etc Buy all domains similar to mine (expensive and ...
7
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1answer
174 views

Deanonymizing users by introducing structured delays to the network?

Here is a scheme for deanonymizing a user that I've been thinking about, just out of curiosity. I tried searching for it but didn't find much. Does this technique have a name? Are there any papers or ...
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3answers
562 views

How to gain a shell?

I'm doing an exercise (exploit-exercises.com) that requires me to gain access to a shell running as another user. My question is this: I can create application that is guaranteed to be run by the ...
7
votes
1answer
271 views

Collision attacks on OCB?

I've been looking into the OCB cipher mode and everything I hear sounds good. I was planning on implementing it. Everything except for this lone voice, that is: Collision attacks on OCB: We ...
7
votes
3answers
665 views

Password list generation

I've found during a lot of recent pen-tests that companies will use passwords like c0mp4ny@b( for a company called "company abc" Is there any quick and easy way to generate a list of passwords ...
7
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1answer
1k views

What is the difference between Simple Power Analysis and Differential Power Analysis?

What is the difference between Simple Power Analysis (SPA) and Differential Power Analysis (DPA) and why is it not possible to do an SPA attack on FPGAs? My basic understanding is they are ...
7
votes
1answer
8k views

Server attack attempts, what are they trying to achieve?

Recently, I have got a few 404 errors where the user has requested PHP pages. The URLs are range around the cgi-bin and php versions, eg, /cgi-bin/php4. There is also some query string as part of ...
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1answer
1k views

ASP.NET HTTP Response Splitting Attack

By default ASP.NET checks for HTTP Response Splitting attack when you do Response.Redirect: ...
7
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2answers
292 views

Profiling attackers via adaptive games: “Strange game, the only winning move is not to play”

Use of Game Design to Profile Attackers: Interested in any research that links concepts in game design to security systems in an effort to profile the attacker's identity, motives, skills, etc.; if ...
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3answers
355 views

Server side SSH keys compromised

I'm interested in knowing what could be the consequence if the server side SSH keys of a host were compromised. The situation would be: An attacker manages to read the SSH private keys of the ...
7
votes
1answer
124 views

What should be included in the ground rules for an attack review?

I've drafted some ground rules for a call for adversarial attack-review. I've tried to cover the following topics: Link to the policy that I want to enforce. Link to a minimal testbed and ...
7
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0answers
474 views

Attackers of Google DNS hijacking

As we know Google DNS server (8.8.8.8) in 14th and 15th March was hijacked in Sao Paulo. And subsequent to this event, BGPmon.org announced an alert Now, In a course assignment, we are asked to ...
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6answers
2k views

What does it actually mean when someone says their website is hacked?

I have seen many people say that their website has been hacked using some vulnerability. I never fully understood what this means. To me the only way to get control of website is get the FTP ...
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2answers
3k views

What is the meaning of “something AND 1=0” command in SQL?

I have read somewhere that in SQL injection attacks the attackers use such keywords into application entry points. Whats the purpose of doing this?
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4answers
654 views

Is Stonesoft's “advanced evasion technique” a major problem?

A month ago, Stonesoft (an IDS constructor from Finland) has launched an alert about Advanced Evasion Techniques. With these techniques, they claim to be capable of launching attacks on a network ...
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4answers
2k views

Is this type of ARP poisoning attack possible?

I am wondering if it is possible to paralyze a network by sending out a bunch of fake ARP response packets. Some basis: I recently read a moderately detailed description of how ARP and ARP poisoning ...
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8answers
3k views

Retrieving OSx Keychain passwords

I have a computer forensics style osx login.keychain file that I am trying to find the passwords from. I have a very weak mac which I used crowbarkc on to try and brute force but the horsepower is ...
6
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3answers
852 views

Attack vectors for brute-forcing website passwords

When talking about password security, a lot of discussion centers on the risk of a password being guessed in a brute-force attack. For websites where a user has registered an account, what are the ...
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2answers
4k views

Need help identifying the OSX process that's generating strange network traffic

Since the past few days, I noticed that my router was a bit slow, and was restarting by itself at times. When looked at it's logs, they had entries like: Friday Jul 13 13:09:02 2012 1 Blocked by DoS ...
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2answers
1k views

Using skype for an attack

I am curious about something; let's say someone randomly added me to Skype and tried to initiate a chat with me and I want to know more about them but I am worried if they can do some damage. My ...
6
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3answers
635 views

Lessen impact of DoS attack on cpu-expensive login?

This is a follow-up to my previous question: Prevent DOS against RSA authentication. This question is also discusses a similar problem: Prevent denial of service attacks against slow hashing ...
6
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1answer
6k views

What is packet drop, packet loss and how Packet drop attack works?

I confused with the three terms: Packet drop. Packet loss. Packet drop attack.
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2answers
3k views

Strange STP traffic in my network, possible MitM attack?

I live at a student dorm, where we are connected to a student network. The administrators of this network have forgotten to disable STP broadcast on non-infrastructure ports. Periodically, I lose my ...
6
votes
1answer
441 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 ...
6
votes
1answer
143 views

What is the name for this type of URL attack?

Say a PHP page accepts URL path as a POST parameter (like the answer to this question): $path = $_POST['url_path']; file_get_contents('http://example.com' . $path); A maliicious user POSTs ...
6
votes
1answer
156 views

Creating a Private Key using Human Intervention

In a hypothetical system, lets say that a design requirement is that people who snoop around the database of a web application (sysadmin gone rogue, or what have you), do not have access to the plain ...
6
votes
2answers
42 views

Could an attacker prevent IIS from logging requests

I've had an attacker try to gain access to one of my websites through a form using what looks like a blind SQL inject. It is a huge form, and every possible permutation of values has been tried - in ...
6
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1answer
1k views

How can an admin choose which Snort rules to enable?

The purpose is to configure Snort as an IDS to monitor network activity, and alert against the standard set of things an IDS should alert against--> buffer overflow attacks, injection attacks, port ...
6
votes
1answer
856 views

I can receive all PADI packets for PPPoE connections of my ISP, is that a problem?

for debugging why my router wasn't connecting to pppoe i've tried to connect via the pc, it worked, then i started wireshark just to see what was going on, and i've seen that i can read all the PADI ...
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votes
5answers
2k views

What password cracking software is commonly used?

I am curious to know how secure my passwords are. What password cracking software is commonly used? Preferably open source. EDIT: I am actually looking to crack my passwords used on services I ...
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5answers
5k views

What kind of attacks against home router's NAT do exist?

I always thought NAT was some kind of a security feature and I still think it is, because if it didn't existed the internet, respectively the clients behind NATs, would be even more insecure, since ...
5
votes
3answers
521 views

How to respond to attack made from my dedicated server?

There was a sudden unusual peak of outbound traffic from my hosted dedicated server (OS - Windows Server 2008 R2). The hoster threatened to block the server if the problem is not solved. There are an ...
5
votes
3answers
235 views

Can anyone be hacked?

I have often heard that if you are the target of a directed hacking campaign by say, a team of government hackers (whether Chinese, NSA, etc.), there is no way to prevent being hacked if they highly ...
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votes
3answers
17k views

What are HTTP GET/POST flood attacks?

I want to know what the main differences are between HTTP GET and POST flood attacks and mitigation strategies for both. I searched a lot but I really can't find some good articles nor examples about ...
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votes
4answers
261 views

What kind of attacks result in an attacker only being able to leak a site's database?

Of the public disclosures I've seen from recently compromised sites, it seems common for only the database to be leaked, rather than the application code, or rather than a complete takeover. Is this ...
5
votes
3answers
411 views

Are CSRF Attacks Really Blind

I'm new to CSRF attacks but don't see how they are always blind. Let's say we are dealing with a site where the asset we need to protect is the HTTP response. Something like one's medical history. ...
5
votes
3answers
970 views

TLS Renegotiation Indication Extension vulnerability

I am trying to understand the TLS Renegotiation Indication Extension from the RFC. I can understand that it is related to the fact that the renegotiation is sent under the encrypted stream, but I ...
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2answers
1k views

How effective is an IDS at catching targeted attacks

I have recently become very familiar with IBM Site Protector. As I understand things, Site Protector is in the top tier of IPS/IDS systems, used by some of the largest Fortune 500 companies. I was ...
5
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2answers
1k views

Is that possible? A router with arpspoof from factory

Just bought a 3G router from China and then checked the log: [1970-01-01 00:00:00] The system will be restored the factory value. [1970-01-01 00:00:00] The system current version: 1.0.5.1. ...