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

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1answer
179 views

Can web connections from a virtual machine guest using NAT attract attacks from the Web to the host?

The hosts OS might be Windows 7 and its firewall activated and the visualization is done by Virtual Box , but I think these details are less important. This question might be related in some way to ...
8
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3answers
2k views

How bad is a Self Contained XSS attack?

Some of you might be familiar with this attack called Self Contained XSS. I recently stumbled upon this article about it. So how bad this kind of attack can be, even though this doesn't have access to ...
4
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2answers
336 views

How can I find out who owns a block of IPs?

I'm currently going through the logs on my apache install for potential intrustions, and I'm finding a lot of hits for SQL injections and exploit testing, from 173.212.195.* . I'm now trying to find ...
4
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3answers
230 views

Should user input be validated for it's length?

Is it bad not to validate length of user input to text field at server side. May it lead to such vulnerabilities as buffer overflows and other? I think it depends on programming language of ...
12
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6answers
5k views

Index page has been compromised, suspicious files are showing up

My website has been hacked lately and it has been defaced. Now I have weird files, don't know where they coming from. I just want to know, what of these files are harmful or can cause that I get ...
5
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1answer
663 views

Trying to prevent Cisco toll fraud

A little back story on the setup first; We have a Cisco VoIP setup at our remote office(where I'm at) and the main CCM/CCX/Unity setup is at the parent company across the US in Connecticut. We have ...
6
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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 ...
8
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4answers
1k views

Automated encryption detection

Is there any program that, given a cipher text, it would tell me what the encryption algorithm is? What if I have the plain text? Is there something that can be done in that case?
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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. ...
29
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20answers
4k views

How can I prevent my kids from bypassing my computer restrictions?

My son has a downloaded copy of Ubuntu that he uses to "break" into my computer, bypassing Vista. I have two questions: Can this damage my computer or corrupt my files? (I have lots of pictures) Is ...
3
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1answer
879 views

challenge-responce and man-in-the-middle

Is man in the middle attack possible in a typical challenge-response based authentication? For a typical reference one can go through this paper. My question is that is it possible for an intruder to ...
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4answers
2k views

Real life examples of web site attacks

I've been put in charge of educating developers on web application security. One way I will be doing this is through an explanation of various web attacks (e.g., OWASP top ten). In addition to an ...
22
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2answers
2k views

Security implications of rooting Android

My Android smart phone has fancy features that I can get only if I root it, e.g., free-wifi tethering or Cisco VPN (with group name/password). However, the procedure to root my phone makes me ...
6
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1answer
158 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 ...
9
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5answers
3k views

How to catch a gmail hacker/money-scammer? (in conversation with one right now!)

My friend's GMail account was recently hacked and the perpetrator sent out one of those classic "help I was mugged, I need money" style e-mails. (Edit: I know it's legit; my friend called me to tell ...
3
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1answer
217 views

How to get informed in metasploit when a user does a reverse shell to my computer

I sometimes do reverse shells on metasploit but I'm not sure when my target will actually execute the payload. I would like an alarm of some sort to tell me when he does. this can easily be done in a ...
20
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5answers
19k views

How to simulate DDoS attacks from the Internet?

The idea behind security tests is easy. You want to know what a hacker can do - you hire a security expert who acts like a hacker to see how far he can get. You want to know what an evil admin can do ...
2
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1answer
408 views

Need assistance diagnosing hacked website

Despite all my work to harden my website, someone has managed to hack it. When loading the homepage in IE8, the page appears to load normally. Then, the status bar briefly displays a request to a ...
6
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5answers
6k 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 ...
2
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2answers
1k views

Some questions about penetration testing distribution Backtrack 5

I know just the basics of backtrack and I want to ask some questions about it: Can you attack an ftp server using backtrack? an email server? I have a Centos virtual private server and backtrack is ...
2
votes
1answer
3k views

How to Prevent This `Intrusion.Win.MSSQL.worm.Helkern`?

Sometimes my kaspersky Internet Security blocks this attack. What is this and how can I prevent/solve it for ever?
3
votes
2answers
980 views

ICMP redirects and source routing in the wild?

Theoretically, ICMP redirect messages (IPv4 and IPv6) and source routing (IPv4) / routing headers (IPv6) are very dangerous. However, I'm curious as to if attacks using these features really work in ...
2
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2answers
1k views

How effective have statistical methods been at breaking encryption?

If we look at how statistical engines run on-line translators, and how they are built, we see that they look at a new language and run a statistical model over it searching for what's probably the ...
1
vote
1answer
339 views

Information on the phpMyAdmin probe?

Various IP addresses call various domains looking for various paths that might lead to PHP My Admin/scripts/setup.php One of those IP addresses is 74.63.212.48 which I just now found out I could ...
3
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2answers
2k views

Reverse shell connections

Why are reverse shell connections so popular in the event of a successful intrusion? Many "hacking" videos show this and it is often seen in practice. Would not most servers restrict outgoing ...
12
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8answers
1k views

Randomizing MAC addresses on bootup

Since it is possible to set custom MAC addresses, wouldn't it make sense to have a new one as often as possible/convenient (i.e. on bootup)? It would seem that is useful to both attacker and victim ...
93
votes
8answers
108k views

Can webcams be turned on without the indicator light?

I've made a series of penetration tests in my network and one of the things I've tried was to record webcam and microphone. Recording an end-user's microphone seems to be a stealth thing, but what ...
6
votes
3answers
929 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 ...
5
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3answers
586 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 ...
7
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1answer
148 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 ...
3
votes
1answer
306 views

Could Stock Exchange be shut down by HFT attack vector?

First of all, stock, not stack exchange. I just read this post on Krypt3ia. In short, it says that HFT attack vector in combination with DDoS is possible new nemesis for stock exchange IT systems. ...
4
votes
2answers
689 views

Is this an example of XSS attack?

A scripter sees on certain web pages it's technically possible to include markup like HTML and CSS/JS. It's technically possible to submit a javascript or iframe and have it display to the visitor ...
5
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 ...
7
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7answers
2k 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 ...
1
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1answer
137 views

WebServices Security [closed]

Do we have any good resources on WebServices Security? Any book, pdfs, articles and even the detail answers regarding the securing web services would be appreciated.
11
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2answers
309 views

security implications of NULL dereference

Suppose we have code like this: struct somedata { int a; int b; }; struct somedata *data; /* ... */ data = malloc(sizeof(struct somedata)); data->a = something; Now, as you can see, NULL ...
3
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4answers
1k views

What are the chances of a database being hacked?

How often do websites (and their databases) get hacked? Hacked as in user accounts stolen, tables flushed, and all in all, damage done to the database. I'm talking about e-commerce websites, and ...
3
votes
4answers
1k views

Comparing penetration testing suites

I've been using Backtrack for a while now. I was wondering if there is anything better, or on par with, that is worth looking into. Thoughts?
1
vote
2answers
588 views

Sun ILOM / Out of band management security concerns

I would like to get some outside opinion on this if possible, although I do not know what to ask. Sun ILOM is an Out-of-band management system. I understand it is a separate OS on the box that is ...
10
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4answers
429 views

Resources for data on security incidents

What resources exist to research data on actual security incidents? I would prefer an online resource but offline resources are acceptable. The cost of access should be less than $100 (US) for ...
7
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1answer
974 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 ...
6
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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 ...
4
votes
4answers
261 views

Attack where browser URL appears valid

I remember reading about an attack where the "location bar" in a user's browser displays a valid URL (e.g. https://www.paypal.com/), but the traffic is really being directed to or intercepted by an ...
25
votes
4answers
6k views

Security of passphrase-protected private key

If an attacker obtains a private key that was created with no passphrase, he obviously gains access to everything protected with that key. How secure are private keys set up with a passphrase? If an ...
4
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3answers
614 views

How do I protect myself against the attacks in this php script?

Due to a vulnerability in how PHP was installed (Shared VPS with PHP installed as an Apache module instead of CGI) and hence how OSCommerce was configured (with security of 777 on certain ...
7
votes
1answer
310 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 ...
23
votes
3answers
5k views

How do DoS/DDoS work?

In the last days one could frequently read about attacks from anonymous and LulzSec against different platforms like Sony or HBGary etc. Yesterday for example they DDoS'ed soca.gov.uk and jhw.gov.cn. ...
22
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2answers
1k views

A phone call hack

The other day, I got a call from a relative with an email problem. After a bit more discussion, it turns out that two days previously, a man phoned my relative: stated he was from microsoft; asked ...
7
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2answers
332 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 ...
24
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6answers
24k views

Security risk of PING?

I have been told that PING presents a security risk, and it's a good idea to disable/block it on production web servers. Some research tells me that there are indeed security risks. Is it common ...