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

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Use cases for IPC security windows communication

There are two processes on windows machine. One is in user space and second is a service. User space process sends data to service. Because iam starting to think about securing somehow communication ...
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1answer
210 views

What useful security reports can be extracted from a Windows-based machine and its' related logs?

What logs and event IDs should I be paying attention to when looking at a Windows-based machine (workstation, server, Domain Controller)? Assuming I can aggregate them into a report what ...
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1answer
622 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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1answer
53 views

Attack coming from multiple IPs

I have an attack coming to a specific path repeatedly - every 10 minutes or so, the same exact address gets pinged. I know this because I keep getting an error message in my Drupal logs about an ...
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0answers
14 views

Possible exploit while MPLS parsing with Bottom of Stack bit

My current task to parse MPLS label in a packet and store them in to a list. When I check packets with MPLS: One can understand it is the last MPLS header by checking Bottom of Stack bit. If ...
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2answers
52 views

How to prevent yourself from exploitable browser?

If we suppose that an attacker has a zero-day vulnerability for a major browser, and can exploit this vulnerability. How can a Linux/Ubuntu user secure themselves from downloading malware (like ...
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1answer
288 views

Recent “attack” to my server that might be using shellshock exploit

I just notice this repeated entry in nginx log: 31.184.194.114 - - [04/Mar/2015:10:29:53 +0700] "GET /cgi-bin/up.cgi HTTP/1.1" 301 178 "-" "() { :;};/usr/bin/perl -e 'print \x22Content-Type: ...
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4answers
717 views

Configure Firefox against malicious 302 redirect from a embedded image resource?

Today my friend demonstrated such a attack. I am using RenRen, a social networking website in a way very like Facebook in China. And I saw an article he wrote. Actually there is only an "image" ...
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1answer
52 views

DDoS Detection devices available in the market? [closed]

Wanted to know what DDoS detection devices are currently available in the market.My organisation has its dedicated firewalls and routers.But we wanted to know if there are any devices in the market ...
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0answers
36 views

Can a Radius server mitigate an ARP spoofing attack?

I'm helping my school network administrator to try to find a way to mitigate a current ARP spoofing attack on our wifi network. We detected an unknown host (MAC address seem to change, he is probably ...
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1answer
56 views

Retrieve anonymous credentials

Background A registration process to acquire an anonymous, verified account goes like this: Registrant provides proof of individuality to a Registrar. Registrar verifies proof, ensures no prior ...
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4answers
5k views

Is it good practice to ban an IP address if too many login attempts are made from it?

Since an IP address does not necessarily represent a specific device, but probably a whole network/company/etc. does it at all make sense to block an IP address if there is a significant amount of ...
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2answers
1k views

Using skype for an attack

I am curious about something; let's say someone randomly added me to Skype and tried to initiate a chat with me and I want to know more about them but I am worried if they can do some damage. My ...
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2answers
197 views

If I send 4mbps of data to a friend with 4mbps connection, will I DDoS him?

Suppose my friend has a connection of 4mbps. If I just send him 4mpbs of random data with my server, wouldn't it block his connection? Even if the router has firewalls and closed ports, isn't enough ...
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1answer
136 views

Setting up own enterprise SOC

the other day I was talking with a service provider (MSSP) who have experience with operating SOC (security operations centre) 24x7. Their price was rather steep (in the millions range). I don't ...
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1answer
91 views

Why use one URL for all “pages” on my site?

I have heard that I should (A) use one URL for all "pages" on my site, such that what page is shown is determined by the session state, and (B) don't use an extension like .php. One curious fellow ...
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1answer
43 views

network IDS capabilities for attack detection [closed]

Is a Network Intrusion Detection System (NIDS) (pattern matching, protocol analysis or behavior analysis) able to detect buffer overflow in the network traffic?
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1answer
115 views

Hack to change the webpage of a website? [closed]

Recently, there is a website by Malaysia Airline got hacked and their main page has been defaced, below is a link to that article ...
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9answers
6k views

Is it bad to have cameras using a static IP address?

I am about to move in a new house, and I would like to install some security cameras. The contractor told me that in order for me to check the videos recorded by the cameras in real time when I am ...
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8answers
4k views

Can malware be attached to an image?

I have a small number of employees who use a company computer but these people aren't very tech savvy. They use an email client and a messaging client. I'm pretty sure they wouldn't click on .exe or ...
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0answers
108 views

Is there any method to prevent/trace ddos attack?

I have a debian linux server which run a few online game services. I have some competitors in this area and i think one of them is behind the ddos attacks. I have full access to the router, so I set ...
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6answers
15k views

What techniques do advanced firewalls use to protect againt DoS/DDoS?

It is hard to protect a server against Denial of Service attacks, DoS/DDoS. The two simple ways I can think of is to use a server with much resources (e.g. CPU and memory), and to build the server ...
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1answer
43 views

MITRE's UEFI 'Extreme Privilege Escalation' and HP's SureStart [closed]

This is MITRE's powerpoint presentation version of their report: http://www.mitre.org/sites/default/files/publications/14-2221-extreme-escalation-presentation.pdf Page 54 is a straight pull from HP ...
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2answers
15k views

What are rainbow tables and how are they used?

Where can I find one? Is there a pot of gold at the end? How do I protect against them? From the Area51 proposal This question was IT Security Question of the Week. Read the Sep 09, 2011 blog ...
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1answer
45 views

Mitigate DDos on Windows box

I would love to know, If you know some way to mitigate DDos/Dos attacks on Windows. In Linux we can Mitigate using the IPTables Almighty, but I wonder If there is something like that in Windows. ...
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2answers
92 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 ...
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3answers
94 views

Can the packets of a wireless network be sniffed by a user who is not present in that network?

1.If an user knows the frequency used by a wireless network, is he able to collect the packets from that network? Those packets may be encrypted, but can he collect those packets? 2.If the user has ...
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1answer
27 views

Does a constantly dynamic cluster of short-lived instances reduce attack surface?

The 4am Idea The general idea is that every instance that gets launched on my cluster is preloaded with a 'suicide script' that after a preset Time To Live (say, 27 minutes) launches a replacement ...
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1answer
36 views

Is it possible to hide behind a hostname to purposefully effect SEO?

Reference forum questions and a couple answers posted on 10 December 2014 What are these unknown visits to my private, unlisted webpage? One of the answers contained this phrase: "Given the fact ...
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5answers
13k views

What is the correct way to implement anti-CSRF form tokens?

I am fully aware of CSRF and have already implemented some safe forms, but I have never been happy with the results yet. I've created tokens as a md5 of username, form info and a salt and stored it ...
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1answer
639 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? ...
3
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1answer
80 views

PHP max_input_vars security expectations

Considering a site that handles large POST data, would it be unreasonable and dangerous to set the php.ini max_input_vars to something like 100000? I know this is a vector for DOS attacks, but don't ...
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73 views

Additional options to protect from bad USB devices in ubuntu

In addiition to the solution options in the other threads How to prevent BadUSB attacks on linux desktop Protecting against bad USB in ubuntu i wanted to ask if it is possible in ubuntu somehow to ...
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1answer
3k views

Detect a server supporting SPDY?

With my current interest in the CRIME attack, I am currently trying to check if there actually exits a way to "fingerprint" a server that supports SPDY? My research lead me to believe only that the ...
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1answer
86 views

How to prevent outgoing UDP attacks?

My server has been the target from hackers 3 times in the last month, and the attack seem to follow the same pattern. The attack another site from my server using UDP connection. The report from my ...
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1answer
80 views

csh http shellshock on a windows 2008 server

My company's McAfee system detected many "http CSH bash ShellShock code injection attacks" attempts on a Windows 2008 server running Apache Tomcat Coyote. Does this config present a potential attack ...
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3answers
670 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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5answers
11k views

How to trace a DDOS attack on a dedicated server and block it?

I have a dedicated server and I'm hosting a game, and the web page (using Apache) for account registering. The server is being ddosed since 8 months ago till today. I've tried to talk with the server ...
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2answers
366 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
124 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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62 views

Integrity-Based Execution

Intrusion Detection Systems (IDS) rely on binary signatures or known-bad-behavior of malware in order to detect threats. It has become very clear that this approach has limited success due to the fact ...
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1answer
366 views

How does the Fake Authentication Attack from aircrack-ng work?

I'm making a school project about the AP attacks and I'd like to know how does the Fake Authentication Attack from aircrack-ng actually work and how to prevent it? I read a lot of articles but ...
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1answer
1k views

How do I stop attack on my email id from hackers?

We have an email id, info@<ourdomain>.com This email id is being hacked frequently and mails are sent from this email id, Following is the example of one such email. From: ...
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2answers
228 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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1answer
86 views

How to Prevent CSRF in Ruby on Rails [closed]

How can I prevent CSRF in Ruby on Rails programming ? Is it possible to avoid overload on the application loading on net ?
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4answers
2k views

Possible to prevent Juice Jacking by only connecting USB pins 1 & 4?

According to this accepted answer, there is no phone on the market today that is immune from "Juice Jacking"*. I think an easy way to mitigate this threat is to have a filter that blocks USB pins 2 ...
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1answer
77 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 ...
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0answers
71 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 ...
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3answers
236 views

Can anyone be hacked?

I have often heard that if you are the target of a directed hacking campaign by say, a team of government hackers (whether Chinese, NSA, etc.), there is no way to prevent being hacked if they highly ...
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3answers
115 views

CSRF Token Strategy

I'm trying to learn more about website security, but it's confusing. I often feel like I need to be an attacker in order to understand how to defend against one, since I don't know what they are ...