1
vote
3answers
1k views

what's the absolute worst damage javascript could do to a client?

Assuming I have a defenseless client computer running Windows 7 that will happily allow any javascript code it comes across on the internet, what's the worst damage that could be inflicted? I'm ...
3
votes
4answers
377 views

sha512 as no-login-necessary token

My site has a news subscription system. When an item is updated, a notification email goes out to everyone subscribed to that item. You can un/subscribe via a form on each item's page. I wanted to ...
0
votes
2answers
539 views

TimThumb security alternative or fix?

"An image resizing utility called timthumb.php is widely used by many WordPress themes....The utility only does a partial match on hostnames allowing hackers to upload and execute arbitrary PHP code ...
3
votes
3answers
140 views

What is a simplest “Crash an application” demonstration to get access to a system?

For a presentation (10-15 mins) purpose what is the simplest demonstration of "crashing an application" on a machine can be done.
4
votes
2answers
2k views

L2TP/IPsec shared secret: Can it be public?

My university provides a VPN service to gain access to internal services to all members. They are apparently using an L2TP/IPsec solution by Cisco. I'm able to connect just fine, but I'm a bit ...
2
votes
2answers
442 views

when you are phished, what do they get?

Lets say I was foolish enough to press on a YouTube video on Facebook that ended up being what I suspect is a phishing link. What can they potentially get? I had three tabs open: (1) my phpMyAdmin ...
5
votes
1answer
925 views

Why ESTABLISHED,RELATED for INPUT only?

In many places and tutorials I see people add this line to their iptables: -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT And they do it only and only for "INPUT". What about OUTPUT and ...
8
votes
2answers
4k views

Exploits or other security risks with SVG upload?

I have a site, where people can upload graphics, you might think of it like an image hoster or a forum for pictures. Now, I allow upload of raster graphics to a certain size, but no vector graphics ...
15
votes
5answers
17k views

What are the pros and cons of a VPN for privacy

Recently I have been getting more and more interested in the security (privacy and anonymity) issues of my online life. Not that I have anything to hide, or that what I do online is so interesting to ...
3
votes
2answers
771 views

HTML Vulnerabilities

My question is three-fold. Background I was asked to do some vulnerability scans on a website with some holes (I think). On a particular page, I was able to escape the text field and write on the ...
2
votes
1answer
144 views

What is a good method to report security breaches that are being used to actively spam?

I received an email the other day purporting to be from a bank I hadn't even heard of, so I decided to poke around. On some quick investigation, it looks like something has just latched onto some poor ...
1
vote
0answers
178 views

How anonymous used UTF-16 ASCII to fool PHP escaping [duplicate]

Possible Duplicate: How anonymous used UTF-16 ASCII to fool PHP escaping (Reposted here as per request). A few months ago, anonymous took down a child pornography site using SQL-injection. ...
15
votes
3answers
13k views

How to test for the BEAST attack if server isn't Internet-connected?

I'd like to test a server specifically for vulnerabilities related to BEAST. What command line switches should I use? What should I see (or not see) in the output? Update The intent is to scan a ...
2
votes
1answer
793 views

Are .NET WebServices vulnerable to CSRF?

While developing TeamMentor I implemented a number of WebServices (consumed via jQuery) and now on its final push for release I want to double check that they are not vulnerable to CSRF. There isn't ...
0
votes
3answers
240 views

What is the most reliable way to transfer emails without specific recipient support?

Many suggestions on transfering emails securely can be found in this answer. But many of them (e.g. PGP) need support from recipient. I want to provide SMTP email server that will route emails of it's ...
23
votes
7answers
685 views

Fostering an environment where honesty and disclosure are valued

UPDATE: The question is seeking real research based on behavior analysis of a significantly large sample people using well defined experiments. Posting answers based on opinions, or ad-hoc ...
4
votes
3answers
3k views

Opensource NetFlow generator

Cisco routers are able to generate NetFlow flows that can be captured and then analyzed in order to manage what is going on on your network. Unfortunately, I don't have a Cisco router in my toolbox so ...
4
votes
0answers
118 views

Dealing with systems that store/send passwords in plain-text [duplicate]

Possible Duplicate: What to do about websites that store plain text passwords When using a system as it was designed to be used, and the system provides proof that it is storing and/or ...
5
votes
4answers
3k views

Most secure data storage?

What is most secure data storage currently available and suggested by specialists, to store digital data in digital medium (without making hard copy of data onto paper or other type of medium, than ...
19
votes
4answers
7k views

How did Anonymous use UTF-16 ASCII to fool PHP escaping?

A few months ago, Anonymous took down a child pornography site using SQL-injection. I read in this article that Anonymous claimed that "the server was using hardened PHP with escaping," but they were ...
9
votes
8answers
8k views

Keyloggers on Smartphones?

I need to clarify my question. I'm wondering if there are any apps for smartphone that can log each 'keystroke' (i.e. key pressed on touchscreen) that a user does. Performing a google search brings up ...
5
votes
1answer
241 views

What particular devices and processes are available to destroy hard drives, per DoD 5220.22-M?

DoD 5220.22-M specifies the following methods for destruction of hard drives with classified data: Disintegrate Incinerate Pulverize Shred Melt I've seen shredders of the type that might be used ...
0
votes
1answer
878 views

Is Data Object on openPGP smartcard v2 encrypted?

currently I thinking about on-the-fly disk encryption using Truecrypt/dmcrypt LUKS with key stored on smartcard. I would like to use openPGP v2 smart card, respectively GPF Cryptostick which is based ...
4
votes
2answers
3k views

How to get site's 'real' URL (before being rewritten)

If a site uses .htaccess file to rewrite the URL for e.g. better SEO. Is it possible to find out what is the "real" URL?
2
votes
1answer
472 views

What security technology do I need to protect my SSN database?

I'm designing a web application. I need to make sure all my customer's SSN data is secure. Now I know HTTPS with SSL, I'm wondering what are its weaknesses? What else I need to provide a perfectly ...
56
votes
5answers
30k views

How do you destroy an old hard drive?

How do you destroy an old hard drive? To be clear, unlike questions Secure hard drive disposal: How to erase confidential information and How can I reliably erase all information on a hard drive? I do ...
8
votes
2answers
813 views

Should user be allowed to save password in browser?

The auditing company found a bug "The Auto-complete form attribute is set in password field". They suggested to disable autocomplete for this field to prevent disclosure of it "when working on shared ...
1
vote
2answers
3k views

Find the hack in the Apache2 logs?

The hack was a failure, as they were not able to put the created page as the home page. But we found recently a manipulated page on our website (via the rss). So I looked in the Apache2 logs and ...
5
votes
2answers
495 views

How might an email do damage merely by being opened?

E.g. http://www.dailymail.co.uk/sciencetech/article-2094982/Threat-new-virus-infected-emails-PC-DONT-open-attachments.html?ito=feeds-newsxml Assuming that the user clicks no links and opens no ...
6
votes
2answers
2k views

CSRF prevention in PHP

Two questions. Where does one download the PHP version of OWASP's CSRF Guard? The following URL says to check Git: https://www.owasp.org/index.php/PHP_CSRF_Guard All I see on Git however is ...
7
votes
1answer
6k views

Benefits to BlackArch over Kali

Besides BlackArch having a cooler name and the whole Ubuntu vs. Arch Linux thing, what are the relative benefits of BlackArch over Kali? Are the tools broadly the same, or does one have better ...
6
votes
4answers
4k views

How to harden an iPhone/Android app so its tough to reverse-engineer it?

These are the following objectives I have in mind: Make the app hard to crack, as the binary will hold some secret tokens. If it still can be cracked, is there any way the app can tell someone or ...
7
votes
2answers
18k views

Javascript and jQuery not secure over https

I am building an ASP.NET MVC 3 app which will run in Azure. Everything was working well, until I switched to https. Now most of my jQuery plugins and some other javascript are not secure. I'm using ...
12
votes
2answers
340 views

Should a pentest report include the tester's opinion?

In this particular case, the webserver turned out to be a shared 3rd party system and was not tested. Examples: We do express grave concern at the overall security posture of that webserver and ...
9
votes
7answers
1k views

How are open-sourced operating systems and software kept secure?

I have been wondering about his for awhile. I have Linux running on a PC at home. I had a jailbroken iPhone. They both have attributes that make them very attractive, and they are also FREE! But I ...
5
votes
2answers
1k views

Revisting the Username Hash

There are a few questions which ask for inputs on the wisdom of storing (possibly salted) username hashes for the purpose of authenticating end user access to some information resource. Most of the ...
1
vote
2answers
1k views

how to make software reverse engineering difficult

In software reverse engineering, we use a dissembler, a debugger, and a code patcher. OllyDbg includes all. One of the differences between actual execution of a program and debugging through using ...
5
votes
3answers
694 views

Is this a symptom of an attack (DoS/DDoS)?

I work for an e-commerce website in my country and this is the second time we suffer an attack. At least, looks like one. We have a search functionality in our website and the supposed attacker is ...
5
votes
5answers
353 views

Does the method of Internet connection affect the security of your the network?

I was just visited by some door-to-door salesmen from a local ISP/TV/Phone provider. During our conversation, I raised some concerns about the fact that I knew their help desk techs had back-door ...
13
votes
3answers
350 views

Malicious QR Code and Mitigation

I just started reading a little on QR code, so I'm not entirely familiar with QR Code capabilities, but a thought crossed my mind today. I scanned a QR Code on a postcard I received, and it ...
2
votes
1answer
126 views

CSR generation origin?

Platform: Windows 7 x64 Development: .NET 4 Web Server: HttpListener (IIS not installed, will not be installed :) ) Can Machine A generate a Certificate Signing Request for Machine B and have the ...
3
votes
2answers
373 views

Computer-level logging by financial institutions

I am looking for the best approach to recognizing a specific computer and saving that computer as a "safe" login machine. My intuition points me to using cookies, but what value do I store in there to ...
0
votes
1answer
212 views

FoundStone scan + URI filtering

I have a server that is protected with a firewall with URI filtering rule. So if you go http://x.x.x.x/URIFilter/Something you will get to the server, but if you don't put URIfilter into URL or use ...
1
vote
2answers
3k views

Intercept Connections Instead of Forwarding (using arpspoof)

I am doing ARP Spoof experimentation with arpspoof and have successfully set up a man in the middle between two machines. We set up IP Forwarding using: echo 1 > /proc/sys/net/ipv4/ip_forward ...
7
votes
2answers
1k views

How to encrypt a password stored in a database (need to decrypt later)

I am working on a system that can connect to any number of different systems. Someone inputs the credentials for a system to connect to, and my system remembers the credentials and uses them to ...
2
votes
2answers
208 views

Design of a state machine model to solve conflict of interest in Computer Security

I need to design a state machine model to solve conflict of interest in computer security. [I know Chinese wall model but it is an information flow model] Are there any such existing models? Any ...
16
votes
2answers
4k views

How big should salt be?

I will be using scrypt to store passwords in my application. As such, I'll be using SHA-256 and Salsa20 crypto primitives (with PBKDF2). Having that in mind, how big salt should I use? Should it be ...
4
votes
2answers
2k views

Is viewing applied group policy on a client PC not considered a minor security breach?

A client on a company can run commands and view the Group Policy settings applied to his own account and computer. The commands are: gpresult (and all of its variants) rsop.msc In my opinion, ...
1
vote
2answers
164 views

What due diligence is required for HTTPModules that run within IIS?

I noticed some HTTP Handlers in my Web.config that appear to intercept HTTP traffic and manipulate it. Since there has already been an exploit with a similar component produced by Microsoft, what ...
5
votes
5answers
2k views

Robots.txt security strategy?

Is there a way to basically have an allow all policy on your top level domain, and any subdomains disallow all? I would rather that my public facing app servers not get indexed, but from what I can ...

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