Tagged Questions

An application that is accessed over a network such as the Internet or an intranet using a browser.

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0
votes
0answers
49 views

Tunneling Remote Desktop from DMZ Windows server to my Listening Linux Server. How to?

I have a situation in a penetration test where I got a meterpreter on an internal (DMZ) Windows box, and I want to connect via RDP to it, however the RDP port is blocked externally. The box I hacked ...
4
votes
1answer
88 views

Is limiting access to a web script with .htaccess secure enough when that script can run arbitrary commands?

Okay, so I don't have much HTML experience, but I recently started working on a project with a group of people that involves regularly manipulating files in a web server. I would like to work on this ...
4
votes
1answer
100 views

How to store a group password for multi-user server-client web-application?

In a web application, accessed by browser via https, users need to be able to access data stored on a server in a MySQL database. Data has to be encrypted for several groups of users, where one group ...
2
votes
3answers
94 views

Are externally referenced libraries (CDN's) a security issue?

Today I read about an alleged malware attack targeting jQuery.com A german blogger who is what I would call an expert on IT security stated that Any website that is working with ...
-2
votes
1answer
53 views

Escape from <script> to cause a XSS (XSS when reflection is already under <script>) [duplicate]

I am trying my level best to solve this issue i am totally not able to create a XSS i still thinks it to be a vulnerability and i think it is exploitable. I am frustrated around it for 8 days . Please ...
1
vote
1answer
98 views

Worst-case scenario OPEN URL REDIRECTION and why google not covering it in bug bounty

OPEN URL REDIRECTION as per in my opinion can be proved very dangerous by crafting attacks such as phishing. But it seems like google thinks it as a very low level bug and does not provide any ...
-1
votes
2answers
93 views

XSS InJavaScript

Recently i was figuring out a web application and found that the url is reflected among the source of the page which make it bit obvious for xss but the input from url which is reflected on source is ...
8
votes
4answers
865 views

Can anti-CSRF token prevent bruteforce attack?

I am not much experienced with brute force attacks but I was wondering Suppose, you have a website www.example.com and you want to do brute force attack on that login form but that login form is ...
1
vote
0answers
69 views

The simplest way to emulate TCP-IP protocol violation / anomaly attacks

Reading up upon security on web applications I did not found that much info on TCP-IP and in particular HTTP/UDP protocol violation / anomaly attacks. My question: What is the general mechanism of ...
2
votes
1answer
66 views

What is x-frame content?

I tried scanning websites for vulnerabilities and found most of them are with low risk x-frame content and "nosniff" what is it exactly?
0
votes
1answer
107 views

Reflected XSS script passing through URL how to make it work and what are the preconditions for it to work?

Trying to learn about security I set up the most simple website on my localhost consisting of one html page that a apache server serves. I first started trying and appending the JS script that would ...
3
votes
2answers
141 views

How safe is to secure sensitive content by URL with MD5 hash and no other authorization?

Suppose we have website that use MD5 hash in URL like this: http://somewebsite.com/XXX/ where XXX is MD5 hash. Content of this website may have sensitive information like transaction details with ...
21
votes
3answers
3k views

What are the disadvantages of implementing HTTP authentication in a web application? [duplicate]

I know that there are different types of authentication mechanisms available. One among them is the HTTP authentication. What is the danger in using this method compared to other methods?
3
votes
2answers
340 views

How to keep someone from analyzing our site?

For the past days some script kiddie has been scanning our site with w3af and some basic manual checks. Although I know the site is "secure" because I analyze it almost everyday, I'm not perfect and ...
3
votes
1answer
533 views

How secure are Google (Drive) Web Forms?

My child's school is using a Google Web Form to collect student and parent information, including occupations, addresses, maiden name, birthdays, contact information, and who the child resides with. ...
1
vote
0answers
45 views

Does Ally Bank's trusted image system actually make login safer? [duplicate]

Ally Bank uses a 'trusted image' system to supposedly make login more secure. I can't find evidence that this is standard practice, so I'll explain it. When creating an account, you choose an image ...
1
vote
2answers
139 views

Can my University see what Stack exchange account I am logged into?

I have to log into an account to use the university internet, so I imagine they can see all the sites I view, but can they see what account I am logged into, and can I do anything to hide this?
0
votes
0answers
94 views

POST request in curl return all the source code of the page

I am trying to exploit the mutillidae web-application and I found a page vulnerable to sql injection but with a blacklist check embedded into the HTML code. I've tried to bypass this by forging a POST ...
1
vote
1answer
94 views

Securely send password to script as parameter

I have an expect script on my server which opens a WebDAV connection to another server, expects a username and password, and then sends $arg1 and $arg2 as the username and password respectively. ...
4
votes
2answers
171 views

Two-factor verification without a mobile phone?

Currently, some services use a second layer of veficiation if logging in from a new device: Gmail and Facebook send a text or call with a code Facebook generates a code in the mobile application ...
15
votes
3answers
3k views

Is encrypting SALT with given user's password more secure?

I'm learning about web security. I understand that passwords are hashed with salt. Why aren't the salts encrypted with same user's password? Cloudn't this make password cracking much harder? ...
0
votes
1answer
74 views

What is the danger or downside of using online/cloud web app scanner vs on premise ones?

Cloud scanners are becoming more common these days. Pricing is a lot cheaper than on premise scanners. My concern with cloud scanners is that they store sensitive information on 3rd party network. (I ...
0
votes
1answer
142 views

Execute a remote PHP shell which is inside a file I dont have permission to access

Hi need some help here. I am trying to exploit an unsanitized file upload with a PHP backdoor. Basically the file uploads successfully and I can see my backdoor inside the web applications /images/ ...
-2
votes
1answer
77 views

Scanner / tool to generate a list with all forms and input fields of a website [closed]

I'm not very experienced with information security but know some basics about injection attacks and other web based attacks. Is there a tool / crawler to find all forms and input fields of a whole ...
1
vote
1answer
104 views

Is Payment using an iframe more secure than using as Javascript library?

Traditionally most Payment providers only provide Hosted Payment Sites via redirect or iframe. But now an increasing number is also supporting payment integration via a Javascript library. I imagine ...
1
vote
1answer
59 views

OTP for syncing mobile device

Scenario: a web app with two-factor authentication using username/password and hardware OTP. Once logged into the app, one of the app modules should be used in a tablet or any mobile device without a ...
1
vote
2answers
113 views

How to secure a web service for web applications using same database?

I have 2 or more web applications that need to be able to communicate together using a web service interface. Information All applications are using TLS/SSL (https) All applications have access to ...
1
vote
2answers
102 views

Should every post request include csrf token?

What is the vulnerability level if the anti-csrf token is not sent with every post request? (If the vulnerability levels were high, medium and low). I understand for critical functions like login etc ...
2
votes
1answer
101 views

How does Mylar ensure encrypted data remains secure even if the live app code is compromised

Because Mylar does the decryption in the browser, the key is never stored on the server. Nice. This moves the threat to the browser, where, if the attacker is able to get a malicious script to be ...
1
vote
1answer
58 views

Logging in users automatically on a website

I'm making a website that has an extended forum feature, where users can login, post comments, etc. I'm making the feature where the website stores cookies in your computer so the next time you visit ...
5
votes
4answers
677 views

What is a good browser for web application pen testing? [closed]

I am getting started in testing web applications, and I am having trouble verifying vulnerabilities. It seems all modern browsers have protections against things like XSS. When something like Burp ...
54
votes
1answer
3k views

“Allow __ to be fullscreen?”

I have been asking myself for a while what's the purpose of that popup showing up in pretty much all the modern browsers upon entering the full-screen mode of a video or website. It appears to be a ...
1
vote
1answer
359 views

Hackers attack against wp-config.php

my wordpress site suddenly be hacked via wp-config.php. I have never known this type of attack. When i scan my site, wpscan warn against this errors: How can i protect my site from this attack? ...
1
vote
2answers
90 views

Are input fields that don’t have name=“” sent via the browser [closed]

Are input fields that don’t have name attributes susceptible to MITM attacks (w/o SSL) or any other attack? For example: <form action="" method="post"> <label ...
1
vote
3answers
123 views

Where can I find a list of frowned upon usernames for web sites?

There are some usernames that shouldn't be allowed to register on online services, for example: administrator, admin, root, system, owner, hostmaster, webmaster, sitename or sitenameadmin As far as ...
1
vote
5answers
106 views

Reply to email or text as verification?

I've seen plenty of websites that, during the signup process, require me to verify my email address or cell phone number by clicking an emailed link or by entering some one-time-use code that's been ...
1
vote
3answers
138 views

What is Reflected XSS?

Fed up with the following definition. Reflected attacks are those where the injected script is reflected off the web server, such as in an error message, search result, or any other response that ...
1
vote
3answers
96 views

Prevent someone from using your site for phishing?

So I have a site where users can create online surveys and send them out to whomever they like. Over the past few months we have seen an uptick in one particular user who creates an account, then ...
0
votes
1answer
233 views

REST API: does securing the first call with a CAPTCHA make sense?

Let's say I have an iOS/Android app which rely on a custom REST API for things such as account management (register, login, password reset, get/set user-related data). There is no good way to ...
0
votes
2answers
75 views

Are there any flaws in my design for a paper-based OTP grid?

I'm trying to implement two-factor authentication on the cheap for a website of mine. My bank uses this sort of grid-based OTP system, so I wanted to emulate it in my application: Cards are ...
2
votes
1answer
274 views

Correct way to perform secure two way encryption on a web site

I'm currently working a project that requires me to store sensitive information (mainly passwords and other information) on a web server via a standard python/flask website. This information is to be ...
0
votes
0answers
69 views

Should Javascript & IFrames be used to refresh sessions when Master Cookie Domains are used?

Suppose I have 3 sites that I want to have SSO in, site1.com, site2.com, and auth.com. SSL is always required. According to how SiteMinder cookies are described here, one of those domains would ...
1
vote
2answers
76 views

Need explanation on local file inclusion?

So few days ago a friend fixed an lfi on his site , and he sent me the url used , it was base 64 encoded url but not usual ../../../etc/passwd , It is : Li4vLi4vZXRjL3Bhc3N3ZAAucG5n Now decoded on ...
9
votes
1answer
495 views

XSS Technique - & JavaScript Include

I was looking through the OWASP XSS Filter Evasion Cheat Sheet, and there was one technique that was completely new to me: & JavaScript includes <BR SIZE="&{alert('XSS')}"> I ...
0
votes
2answers
285 views

What kind of attacks can happen on port 80

I am a novice to network security domain. For one of our clients, we are trying propose a network model where an Apache proxy/web-server which will be the only one that is exposed into the ...
1
vote
5answers
191 views

Why after a website password reset am I asked to login again?

I have noticed that every web site has the exact same behavior for their password reset pages. They send a link to your email using which you can reach the password reset page. On that page you enter ...
-2
votes
3answers
219 views

How to identify if my site is vulnerable to DOS/DDOS attacks? [closed]

I am hosting a site on a hosting server. How to identify whether my site is vulnerable to DOS/DDOS attacks?
1
vote
3answers
191 views

As a non-security professional how should I respond when told my site is insecure?

We have a website, and somebody wrote us an email claiming we are insecure! What should I do
0
votes
0answers
86 views

Should I be concerned about the following URLs that were tried to open on my webpage?

I don't know if this is some injection attempt or a weird bot or what ever. An IP opened several pages within my Drupal 7 website with the appendix ...
0
votes
2answers
72 views

What methods can be used to verify identity against a database?

I have a database with individual contact data for students... this data includes name, address, phone number, birthdate, etc. (no social... that would have made this too easy apparently, ha ha) I ...