1
vote
1answer
49 views

OS (or platform) agnostic metrics to understand if a system is compromised?

For Windows-based systems, I have seen that changes to the Registry or System Directories are some of the things which are used to track if a machine has been compromised. Similar things must exist ...
2
votes
3answers
155 views

How to setup a dedicated home machine (Linux) for secure transactions?

I would like to set up a computer at home (preferably running Debian, or some other flavor of Linux) to be used only for secure financial transactions. The idea is that, by strictly limiting what is ...
2
votes
2answers
105 views

Are repeating random patterns weaker than non repeating random patterns?

Which would be harder to crack: a password comprising of n characters randomly selected or a password comprising of x randomly selected characters repeated m times so that m*x=n. For example: ...
2
votes
2answers
806 views

How does the SSL connection protocol work with self-signed certificate?

I'm using the self-signed certificate, but I don't know how this protocol works. I connect two apps with a socket SSL and it works fine. The server is a Python app and the client is an Android app. I ...
0
votes
2answers
3k views

Encrypted code file (.vbs) hide all my files and shows .lnk files

I am using Windows XP Professional and what happens is that when I try to connect any gadget like a pen drive or a mobile through USB, all my data got hidden and it shows a 1 kb file which is a .lnk ...
1
vote
1answer
74 views

Resign root CA as SUB?

Imagine I have a Microsoft root offline ca running since half year, but suddenly I want to include it in my company hierarchy, resigning it with the company official root, But I need both continue ...
0
votes
1answer
209 views

Firewall hole punching [closed]

I'm interested in doing my thesis on Firewall hole punching. Hole Punching: A way to exploit NAT to open a connection TCP or UDP between a Client and a Server. What I'm looking for is a reason this ...
0
votes
1answer
77 views

How secure is this way to use open VPN

I have installed openVPN using the following link http://www.vpnbook.com/howto/setup-openvpn-on-ubuntu I would like to ask is it really secure . the password is available for everyone and the ...
0
votes
2answers
144 views

What college majors are suitable for a career in security? [closed]

I was recently asked by a friend of mine (outside the computer science field) if he can be successful in web-application pen-testing I took this as an excuse to ask a more comprehensive question. I ...
1
vote
0answers
364 views

Socket.IO & WebSocket security - query certifcate/public key a leak?

Socket.IO and WebSocket do not provide underlying connection information (like the certificate or public key of the SSL/TLS channel), and I'm trying to understand the reasoning. The context for this ...
1
vote
2answers
157 views

Can't successfully do an idle scan

I have kali linux installed in VirtualBox and would like to do an idle scan. For this I need to find a suitable zombie pc. I'm using the ipidseq script to find one. The script finds some ip addresses ...
-2
votes
3answers
178 views

I need to know if this is a virus [closed]

Someone has been sending me these weird emails and I am starting to get curious about it. The latest one has an image of a broken image linking to this address... I wonder if you guys could help me ...
0
votes
1answer
233 views

Block specific packets/sequences of packets to remove disturbing client “feature”

Recently, one of my client-server application started to disturb me with some very annoying "notifications". Basically, what happens is that the remote server sends a few packets to my client, which ...
0
votes
3answers
3k views

Are VPNs/proxies legal? [closed]

Are VPNs/proxies (and VPN/proxy software such as Tunnelblick and Hola) legal in the U.S., assuming that you are doing legitimate activities on the Internet (i.e. nothing illegal)?
1
vote
1answer
172 views

RSA Signing Key Rotation

I understand the details of RSA encryption/decryption in that a public key can be distributed in the clear since all it can really do anyway is encrypt data. I also understand that this public key can ...
0
votes
3answers
973 views

Prevent a server side script from a direct URL access

There is a server side script written in php(say backend_file.php) or coldfusion(say backend_file.cfm). Lets say, i am using Apache and I have a sample web folder (on my Localhost) like: ...
0
votes
1answer
57 views

ACL managed with roles

I have resources in an application. Further I have a table holding all resources and for every resource what role is allowed to access it. I also have defined a Table holding all uses that are ...
1
vote
2answers
184 views

Security risk of Microsoft AD Certificate Services?

We have an internal CA server for our domain located at http://cert_srvr.local.domain/certsrv/certrqxt.asp. This server runs Microsoft Active Directory Certificate Services. When I went to the ...
1
vote
2answers
206 views

Expiring AES Key

Is there any way to make an "expiring" AES key? Here's scenario to give a better picture: Say Bob has some data which he would like to share with Alice. Alice has a public and private key, let's say ...
2
votes
4answers
132 views

Can webpages using the Google plus button get my name?

When I'm logged into my Google account, and I visit a web page that contains the Google Plus "+1" button, does a script have access to my name, even if I don't interact with the Google Plus widget?
0
votes
1answer
772 views

SQL injection is possible but selected queries not working

I'm black-box testing an application which uses java spring framework and MySQL in the back-end. When I insert a single quote (') in a text box field, the server returns a HTTP status code 500 ...
0
votes
1answer
52 views

are webmalware able to hijack browsers?

Are webmalwares capbale of performing browser hijacking attacks ? Has there been any famous webmalware that functioned this way ?
3
votes
1answer
89 views

How to (programmaticaly or by other means) encrypt or protect customer data

I am working on a web project and I want to (as far as possible) handle user data in a way that reduces damage to the users privacy in case of someone compromising our servers/databases. Of course we ...
0
votes
2answers
87 views

Security of this account login system

I have an idea to implement a account system using email and passwords for games. Im intending to have the account creation and forget password systems on a webpage. So if users will have to access ...
1
vote
2answers
158 views

How can Facebook use history data in browser

Web is filled up with the recent decision by Facebook to track user browsing history like adage.com andNYTimes. How can a web application use browsing history which is local to that browser? Is it ...
1
vote
3answers
110 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 ...
17
votes
4answers
2k views

Is there any reason someone wouldn't use a longer key?

Larger key sizes are said to be more difficult to bruteforce; is there any reason someone would then decide to instead use a smaller key? Is there any negative effect in using a larger key size, such ...
4
votes
1answer
203 views

Security in automated systems using Puppet and Chef

In an extremely interesting presentation at Puppet Camp London, Tomas Doran suggested a pretty radical approach for keeping everything automated by managing tons of Docker containers with Puppet. As ...
0
votes
1answer
713 views

ECC Public Key length differs from bit representation

A 256 Bit ECC key-pair (256 Bit is supposed to be the length of the public key) generated with OpenSSL using this command from the manual: openssl ecparam -name secp256k1 -genkey -noout -out key.pem ...
1
vote
0answers
125 views

XSS Vectors for new Image()

What are possible XSS vectors to this JavaScript code new Image().src = encodeURI('[user url here]'); Let's assume two cases: [user url here] is some string provided by user (with no validation) ...
1
vote
2answers
261 views

Do I need a hardware firewall even if I have Internet security software?

I have Kaspersky Internet Security 2010 installed on my Win7 computer. I assume it gives me enough protection for a software firewall(port security,tracking tcp,udp traffic etc.) Do I still need a ...
2
votes
3answers
705 views

Is it secure to be using LDAP, or is LDAPS the only secure option?

I am currently using an LDAP setup. I am wondering if it is secure from Man-in-the-middle attacks or other vulnerabilities?
0
votes
2answers
254 views

Securing Public Web Services - What is the best practice? [closed]

There seems to be a number of ways to secure web services. OAuth, API Keys, Tokens, WIF, etc. Since security is not my area of expertise, I am asking what is the best ways to secure public web ...
0
votes
2answers
248 views

What is the purpose of HTTPS GET vs POST requests when certificate pinning?

I have a mobile app which uses public key pinning to make sure that I only connect to servers from my CA. This works great with https, and it makes it so that nobody can really proxy my server and ...
1
vote
1answer
358 views

Mixing green (EV) ssl certificate with non EV certificate

We have a green (EV) SSL certificate for our site and images are fetched from the same domain (https). Currently we are planning to change the images domain (for performance issues) and put them in a ...
1
vote
1answer
111 views

CSR's with null bytes in them

According to wikipedia.org's article on X.509 certificates, "There are implementation errors with X.509 that allow e.g. falsified subject names using null-terminated strings Marlinspike Blackhat 2009 ...
1
vote
1answer
326 views

is it illegal to share customer credit card data

I have an app where users can enter credit card data and it is stored using a 3rd party toservice like BluePay or Authorize.net, I do not and will not save it in my system. Trying to get this point ...
0
votes
1answer
134 views

SNORT alert for Trufflehunter SFVRT 3:29312:1

I am seeing this Snort alert show up multiple times a day, but my Google-foo is failing me, as I can not find any information about this alert on the internet. Can anyone point me in the direction ...
0
votes
1answer
106 views

Beating CSRF using Tokens

I am new to web programming. I read an article where they advised to use tokens as a hidden field in forms and match that token at the server end to detect non-legitimate requests. I am wondering what ...
0
votes
2answers
75 views

Creative vulnerabilities in unix eval command [closed]

I'm reading through past exams for an information security subject and I came across this. #!/bin/sh #applications launcher X=$1 eval "$X" "Do you think the program is vulnerable to attacks? ...
9
votes
5answers
3k views

Is it ethical to use ReCAPTCHA to decode house addresses? [closed]

I noticed recently that ReCAPTCHA is using house numbers and street numbers as images for humans to decode. How ethical is it for Google to do this to this? Does it hamper privacy of an ...
0
votes
1answer
208 views

Server SSLv2 enabled on non-webservers

Using Nessus I'm scanning our internal network for vulnerabilities and exploits. I've found a large number of instances where SSLv2 is enabled and is as a result, being flagged as a vulnerability. I ...
0
votes
0answers
59 views

How can I get a list of unsigned plugins in openvas?

How can I get a list of unsigned plugins in openvas? Are those plugins safe for use? When I run the scan on a test machine with nasl_no_signature_check = no, I don't get any results(not even any ...
1
vote
3answers
2k views

VPN tunnel inside other VPN tunnel

This question is kind of asked already but it was asked with different context: VPN tunnel in VPN tunnel Connect through two VPN clients ...
0
votes
1answer
164 views

Why middleman cannot capture the encryption key of https/tor traffic? [duplicate]

When we use Tor or https traffic , the encryption- decryption key has to be exchanged between the browser and the website server. Why somebody who can capture entire traffic , say ISP or somebody who ...
-1
votes
1answer
2k views

My command prompt opens itself periodically and closes itself immediately afterwards. It either displays nothing or displays this message: [closed]

[1] The command prompt also sometimes opens itself and then stays open until I close it. I have run MalwareBytes and SuperAntiSpyware and they find nothing. This is my hijack this log file. I don't ...
1
vote
3answers
132 views

Is my Data Loss Prevention approach missing something obvious?

I think I'm too close to the problem here and I just looking for a sanity check. My product blocks files from being stolen by restricting what programs can access what 'type' of the data. (e.g. ...
3
votes
3answers
2k views

Why are scripts injected through innerHTML not executed whilst onerror and other on<event> attributes on elements are? - Google XSS Challenge 2

SPOILER ALERT : Do not continue if you do not want to be spoiled I am currently doing the Google XSS Challenge Level 2 . I am injecting XSS code that is inserted into the document using ...
1
vote
2answers
333 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 ...
1
vote
2answers
105 views

Can I save & store a user's data in a way that proves that the information has not been altered, and that the timestamp is accurate?

There are many situations where the validity of the timestamp attached to a certain post (submission of information) might be invaluable for the post owner's legal usage. I'm not looking for a service ...

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