0
votes
1answer
131 views

Any issues with this security design for cloud storage? Server doesn't even need to know password to log someone in

I've created an algorithm I think I'm going to use for a cloud storage service I'm developing- if there are no issues or vulnerabilities with it. It's this along with TLS and forward secrecy ...
1
vote
2answers
389 views

False positive Apache version in scanner results on Centos

Recently I need to care a lot of false positive vulnerabilities in scanner results on Apache version. Example of false positive vulnerability: Apache 2.2 < 2.2.16 Multiple Vulnerabilities Our ...
1
vote
1answer
56 views

How to change TEA round count? [closed]

I cribbed the public domain TEA source from wikipedia ( http://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm ), looks like this - uint32_t v0=v[0], v1=v[1], sum=0, i; /* set up */ ...
1
vote
1answer
494 views

Signing session cookies

The Play Framework for Scala has support for signed session cookies. In the application configuration file is an "application secret" that is set as a secure random number when the application source ...
3
votes
1answer
1k views

Who is the creator of the CIA triad?

The Information Security goals - Confidentiality, Integrity and Availability (CIA) - are often referenced to as the CIA triad. As I am writing on my master thesis, I am wondering to which resource I ...
0
votes
2answers
120 views

Using the same base string for a password in several different logins [duplicate]

It is clear to me that using the same password for different websites is a bad idea because if an attacker manages to get a hold of your password, then he can gain access to the other websites in ...
3
votes
2answers
1k views

XSS Vector Without Forward Slashes or Spaces

I need an XSS vector that doesn't use forward slashes or spaces. I've gone through lists of hundreds of vectors, but they usually have one of those two. The space gets URL encoded, and anything after ...
38
votes
3answers
921 views

Is an SSH session to a mistaken site a security exposure?

A few minutes ago I attempted to ssh to a server I have at my office. Since it is a new server my public key has not been set up there so I had to type my password in manually. After three times of ...
4
votes
2answers
312 views

How to prevent email discovery in forms?

Being on the company security email list, I get emails with some regularity complaining about email discovery on various forms on my employers website. The reporters are complaining about things like ...
2
votes
2answers
183 views

How can I be sure my former employer no longer has access to my computer? [closed]

How can I be sure now that I no longer work for a certain company that they are not accessing my computer from their side. Strange things happen ( someone remove a certain set of my friends on ...
1
vote
2answers
133 views

Can non-https assets be tampered with?

Why load assets such as images, javascript, css etc, over HTTPS? Is it possible for these assets to be tampered with if I use HTTP? The only way I could conceive of tampering with HTTP loaded assets ...
3
votes
1answer
111 views

Tracking down the source of email attacks

For the past week our company's IDS has been blocking 100-200 meeting invite emails per day from a specific client that are loaded with buffer overflows targeted at Exchange 2003. The payloads are ...
2
votes
2answers
382 views

What hacking risks a site has if it has no input boxes?

I recently posted a question about recovery of website from XSS attacks, http://stackoverflow.com/questions/20759081/how-to-recover-a-site-after-an-xss-attack... Doing a bit more digging online, i ...
1
vote
0answers
58 views

What are the steps to securing encryption keys/databases on an unsecured DAAS provider?

Most Desktop As A Service providers store their virtual hard drives and the VMs RAM in a way that allows them to access their contents. Choosing a provider who offers a 'no-knowledge of server' ...
0
votes
1answer
314 views

Shall I enable 'send all traffic over VPN' on my Mac?

I want my Mac to be as secure as possible, but I don't know if the send all traffic over VPN option is safe or not. Please can someone explain if it is more secure to enable it or not.
0
votes
3answers
116 views

Best way to store passwords for a LAN tool?

I am making an app in Python for linux as a front end to the router (to automate some tasks). But I need to log in to the router before I can do any operations on it and since it uses a http-auth I ...
0
votes
1answer
45 views

Photo Attachment's Feature For Some Mail Servers [duplicate]

You already know google started new service which is related to gmail. http://gmailblog.blogspot.com/2013/11/attachments-in-gmail-now-with-power-of.html When we send new mail to friends.If it ...
1
vote
0answers
101 views

Are VPNs using shared secret susceptible to trivial MITM attacks

I'm looking at a few VPN providers and many seem to offer L2TP VPN but they seem to share their shared secrets publicly on their website, for example : Goldenfrog ...
-2
votes
1answer
145 views

How can I keep another device from being able to see my iPhone messages and documents when they are connected to my wifi

Is there a security app I can download so I can keep another device from being able to see my iPhone messages and documents when they are connected to my wifi
3
votes
2answers
438 views

Regarding SQL Injection at Back End?

I have logged into SQL Server 2008 Database and executed following query: select * from USER_Main_INFO_Name where userid ='' or 'x'='x' After executing the query Database has given total user list. ...
1
vote
1answer
9k views

How much can someone see from my iPhone by connecting to my wifi

How much can someone see from my iPhone by connecting to my wifi and can they copy my messages files documents etc
0
votes
0answers
18 views

Privacy of my files and messages while another device is connected to my iphone [duplicate]

If someone is connected to wifi through my device can they copy my files documents or messages to their device
5
votes
1answer
381 views

How is DOM XSS possible here?

I was looking at this website and trying to understand how this XSS is possible, but I just can't figure it out. Here's the URL: http://www.domxss.com/domxss/01_Basics/05_jquery_html.html?681973661 ...
9
votes
7answers
486 views

Authencity of information displayed on an untrusted device

Suppose I have a (bluetooth/usb) device which needs to displays information on an external pc/phone. Is there a simple and effective method to garantuee that the information displayed hasn't been ...
3
votes
1answer
9k views

How to harden SSH on CentOS 6.5

I have a new (first time) CentOS 6.5 server being used for a web server. Our security team has identified the following weakness: The SSH server is configured to allow either MD5 or 96-bit MAC ...
5
votes
2answers
1k views

Risks of client-side encryption using Stanford Crypto Library

I'm building a simple web application for encrypted chat. Each message will undergo 256-bit AES encryption on the client side, using the Stanford Javascript Crypto Library. No unencrypted data or ...
2
votes
1answer
2k views

How to learn programming from a hacker's prospective [closed]

I'm really into hacking and security aspects. But I'm wondering about several things that is stopping me from pursuing this passion for the time being. One of the them is actually Programming ...
2
votes
2answers
93 views

How should we announce vulnerabilities in our application?

I have asked about security release notes Considerations for security release notes I need additional clarification about security vulnerabilities announcement. We create major release of our product ...
8
votes
1answer
422 views

What datastructure would/have you used to store ACLs within a hybrid ACL/RBAC system?

In our system, every resource has an access control list (ACLs), which list entries (ACEs) that have a specific kind of access to that resource. The ACE can be for end-entities (eg: users like "Mr Q") ...
12
votes
4answers
4k views

Why OpenSSL can't use /dev/random directly?

I couldn't find the answer for the reason anywhere, even the wiki page doesn't explain it. This seems like using a PRNG for seeding an another PRNG. The first one (/dev/random) may itself be seeded by ...
5
votes
3answers
166 views

SPAM Email Analysis

What are the steps you would follow in order to identify in an email is a SPAM/SCAM/Phishing attempt? The reason I am asking this question is that sometimes very well crafted junk emails manage to ...
-1
votes
4answers
189 views

Is there any other way to trace a computer besides its IP? [closed]

I play on this game thing - it isn't important but it is a roleplay game. I am roleplaying a criminal - a smart one. Now the fake FBI in the roleplaying game sent me a message. They have made the IP ...
2
votes
1answer
98 views

Does it make sense to use two factor authentication with password protected wp-admin folder?

I've finished building my wordpress website and now, I'm concerned about the security of the website. To improve security, I'm using Google two factor authentication plugin while also ...
1
vote
2answers
83 views

HTTPs token Parameters : UDIAuthToken

For HTTPs I saw the URL was configured in https://test.com/xml/Transformer=TEST&UDIAuthToken= < string of alphanumeric chars, 160 in count > << this a dummy hostname, with dummy ...
2
votes
1answer
46 views

“holding open” encrypted home with local ssh

I have a couple of machines that I use for purely automated stuff, with home directories encrypted using ecryptfs. So even if the machine is powered on, those directories aren't decrypted unless that ...
24
votes
2answers
2k views

Do simple Linux servers really need a non-root user for security reasons?

Playing devil's advocate, Let's assume I purchase a Linux server from a hosting provider. I am given a password for the root user and am told I may login using SSH. The only purpose this server has ...
2
votes
1answer
294 views

How to measure the integrity of the OS (Linux)?

I am working on a project which requires Integrity measurement of OS (Linux). One way to do that is using IMA but I am not sure if it fits in the scenario below. The scenario of the project is some ...
1
vote
1answer
170 views

One or two machines in a network have been compromised. How to proceed [duplicate]

Edit This post has been marked as duplicate. While I have read the referenced thread I see some differences in the descibed situation. My scenario below is a non-server home network with both machines ...
3
votes
4answers
219 views

Are these SQL injection checks a bad idea?

Reading Preventing SQL Injection Attacks in Stored Procedures started this debate between my partner and I---and looking for the right approach is not as straight forward. I'm no security expert--but ...
0
votes
1answer
160 views

Why is there a “show password” functionality in some login forms? [duplicate]

I've noticed that on a lot of login forms in websites and applications that there is a "show password" check box. Why? I myself have seen some hacks that an attacker could hack the input password box. ...
6
votes
1answer
116 views

Considerations for security release notes

I need help with understanding how to manage security release notes for our product. We create major release of our product about each half years and security or maintenance releases each month. What ...
3
votes
2answers
333 views

What are the pros and cons of using yubikey with ssd hardware encryption?

I'm considering trying out yubikey and I've recently discovered that the (crucial m500) SSD I recently bought supports hardware encryption. I think it should be possible to use a yubikey to provide ...
1
vote
3answers
208 views

What is the safest way to copy a file from an untrusted system?

Scenario: There are two computers running GNU/Linux, U and T. U is untrusted and T is trusted. A non-executable file F (which may however have been infected with malware) resides on U. (For ...
5
votes
2answers
539 views

How dangerous is it to allow arbitrary webhook urls to post to?

I am building a Ruby on Rails API that posts to webhooks that the API user can create, whenever a resource that he manages is created, updated or destroyed, using the HTTParty gem. This got me ...
1
vote
2answers
487 views

arp request to a ghost host

All the clients in my wireless network send continuously arp requests to a host that doesn't exist (I've checked its absence with nmap -PN [IP]). The clients use windows 7 and windows xp (here the ...
0
votes
4answers
223 views

Is knowing 'a' encrypted with 'b' and 'b' encrypted with 'a' a possible threat?

Excuse me for question name, but I couldn't find any other suitable title. I want to validate client connecting to the server. My algorithm looks like that: Clients sends his login - plaintext ...
1
vote
2answers
100 views

PHP Handlers and Caching

I recently began configuring our production server for a new Drupal site. Up till now, I've always used the default PHP handler mod_php, and removed write privileges for any directory/file except ...
2
votes
2answers
956 views

What are the vulnerabilities of using a 256 bit encrypted PDF file over email?

I often send confidential documents to others using encrypted PDF files (i.e. files with a user password, and typically with an owner password as well) to prevent both accidental forwards and ...
3
votes
7answers
267 views

How would I give an encryption key to only one person?

Let's say I have an encrypted message. I want to make it so that someone is able to decrypt it. The only way of giving it to them is online. For the purposes of this question, I can't call, mail or ...
0
votes
1answer
71 views

How to pass an email address securely to a web application X embedded inside a web application Y

The scenario I'm trying to address is this: There is a web application Y which has an authenticated user. Inside Y, web application X is hosted (which belongs to a different domain). When X is ...

15 30 50 per page