0
votes
1answer
2k views

In SSL/TLS, how is the authenticity of a server's certificate verified?

Quote from an article on computerworld.com: "The private key is used to sign the server's TLS public key, which is currently used by browsers to validate SSL certificates." My understanding ...
5
votes
1answer
2k views

What OID Issuance Policies are appropriate for SmartCard and Browser Certificates?

I'm investigating issuance policies for SMIME and Browser certificates with different levels of assurance. For the purposes of S/MIME and Browser certificates, should I even use an assurance policy? ...
2
votes
0answers
180 views

Determine deployed 802.3x encryption/authentication protocols? Or, why can't I access Eth0?

Is there any means to identify deployed 802.3x authentication protocols on a wired interface (eth0) under Windows 7 (CLI), or from wlan0 on a *NIX based system? The scenario is as follows: I am a ...
2
votes
5answers
1k views

Apple ID Created With My Email Address

A little similar to this question. but rather than hack my email address someone has created an Apple ID with a gmail address that is similar to mine, but had dots '.' in it. For example if I have ...
1
vote
2answers
447 views

S/MIME verification

I am getting emails with smime.p7s attachments. when I look at my mail on my Linux box, I can see base64 encoded block in mail body. I can extract that block and open it on Windows using certmgr and ...
5
votes
1answer
268 views

How to solve race condition in 2-factor authentication solutions like RSA Security tokens or Google Authenticator?

One of the reasons we opt to use 2-factor authentication is to minimize the impact of keyloggers. The theory is that even if an attacker is able to observe the user type in the token numbers, they ...
25
votes
3answers
1k views

A Different Approach to PKI

After yet another failure of the public key infrastructure, I was thinking about how broken the whole thing is. This business of undeniably associating an identity with a public key, and all the work ...
3
votes
2answers
1k views

Failed RDP brute force attack from Microsoft IP address?

I use RDPGuard on my webserver. I have noticed that it blocked an IP address which seemed to originate from a Microsoft registered IP address: Process Information: Caller Process ID: 0xf78 Caller ...
4
votes
2answers
833 views

Does Authenticode still work offline and with a “fake” certificate

Here's our story: We're developing some software (written in C#/.NET) and we're already signing the assemblies with strong names, I do this in Visual Studio with a pfx file that is protected by a ...
1
vote
3answers
639 views

Web Application - Cookie Expiry

We are using a web application on cloud. I need a small clarification. We are using Perl with Apache. I see a following issue here for the below scenario. I need some inputs of whether this is most ...
1
vote
1answer
2k views

How to find IPS events in sonicwall syslog

I have a sonicwall os firewall, and the security dashboard shows about 9 intrusion prevention events in the last month. Most are called "Suspicious CIFS traffic 4". I have syslog servers setup with ...
6
votes
6answers
3k views

What does it actually mean when someone says their website is hacked?

I have seen many people say that their website has been hacked using some vulnerability. I never fully understood what this means. To me the only way to get control of website is get the FTP ...
3
votes
5answers
9k views

How to Investigate Wi-Fi Intrusion and where to look for evidence?

I'm trying to figure out how to configure a network so that I can tell what an intruder did (in the past) while on the network after they are detected. eg. If someone with a wi-fi enabled laptop ...
4
votes
2answers
502 views

What is the severity of a fake certificate?

I'm not a security specialist, thus reading this Google Blog post about a fake *.google.com certificate, raises a lot of concerns, if anyone can impersonate a website, especially a google website, my ...
16
votes
3answers
2k views

URL Shortening - How to verify if it is a non-malicious URL?

Again, I must mention that I have just started to learn about security. So, please bear with my newbie questions. If I receive a shortened URL from somewhere, say in an my-email or in a social media ...
3
votes
4answers
594 views

User-to-user encryption in addition to SSL for mobile phones?

I have learned that SSL is a protocol to implement machine-to-machine encryption and that there are protocols, like PGP, which implement user-to-user encryption (end-to-end encryption). There are ...
1
vote
2answers
430 views

How do I import a PKSC#12 private key into Java 5 (which may require PKCS#7)

I have a newer private key I have to import into an older server. How do I take a newer PKCS12 cert and import it into an older version of java that uses a different format?
4
votes
2answers
717 views

SSL Bit Length History

Sometimes I see web pages advertising a site's support for SSL with a given bit length (commonly 128), and saying that visitors need certain browsers that support this. Is 128-bit SSL common now, or ...
5
votes
2answers
512 views

Does IPv6 without NAT allow my ISP to identify/monitor/limit the number of devices in my network?

Does switching to IPv6 without any NAT mean my that ISP can identify/monitor/limit the number of devices in my private network more than they can with NAT (which is a necessity in an a private ...
3
votes
2answers
368 views

What's the point of using multiple checksum algorithm with “aide”?

In aide the author offers more than one hash algorithm to do the check-sum, why is that? Aren't a single one, i.e sha512 enough for determining file changes? I believe these algorithms are all ...
2
votes
2answers
1k views

Difference between Encryption and Verification certificate

What is the difference between the Encryption certificate and Verification certificate in Outlook? When exchanging certs, it just requires a digitally-signed message to be sent. It seems as though ...
8
votes
5answers
15k views

How is Chase Mobile Deposit Secure?

Chase has this app that allows you to snap a picture of a check with your phone and deposit that check into your account. How do they prevent: Someone from depositing a check that's not written to ...
2
votes
3answers
405 views

What are the security implications of Digital Lifeboat (or other p2p storage solutions)

From Digital Lifeboat's about us section Our solution is a distributed storage cloud service. Digital Lifeboat will compress and encrypt each file selected for backup. We then process your ...
1
vote
2answers
576 views

How do I verify, parse and process the results of the HTML5 keygen tag?

I'm investigating the HTML5 attribute Keygen and discovered that it sends this data on a Form POST to the server. Here is an example POST: ...
1
vote
1answer
153 views

How does window.w3ssss hack occur

Recently a .Net MVC 2 application on our server was infected with a virus / hack, it added some Javascript to the index.aspx pages of the site. While we have cleaned it up, I have not been able to ...
0
votes
1answer
241 views

How to use clipboard manager software more securely?

I want to minimize the risks using a clipboard manager or clipboard history software. I want to use it because it really eases my work so not using it is not a good option. These programs usually ...
4
votes
1answer
778 views

Is one CSRF token per session is adequate with HTTPS?

Ours is a Ajax heavy application with concurrent Ajax requests. Generating unique tokens with each request or expire and creation of new tokens after a certain interval could get tricky with multiple ...
1
vote
1answer
249 views

Implementing Secure Remote Password with Remote Desktop Application

I had read the Secure Remote Password Protocol paper written by Tom Wu. This protocol is resistant to dictionary attacks. I have also go through some papers regarding to VNC attacks due to weak ...
0
votes
2answers
198 views

Is this code vulnerable?

I have developed a php code given below. I would like to know what are the security vulnerabilities present within this php code? <?php if(isset($_SESSION['id'])){ // get data ...
0
votes
3answers
83 views

Is there a way to make changes to a virtual machine, test it out, and automatically make same changes to normal machine?

Is there a way to install programs and make changes to a virtual machine and if they work ok have them applied to the "actual" machine? For example in this question when fiasco_averted says "...only ...
-2
votes
2answers
5k views

What are the methods to crack WPA and WPA2? [closed]

Is there any method other than brute force and dictionary attacks to break WPA and WPA2?
3
votes
5answers
3k views

Building a Security Training Simulation environment

My university is keen to build a security training simulation environment/platform and it will be a good learning experience for students. I Googled around to find out how it is built, but I only ...
2
votes
1answer
219 views

Youtube & Google Services that ID you based on stuff on your computer - what is the risk?

If I'm on a VPN and accessing sites like Youtube or other's using Google services, am I still at risk for being located geographically via scripts in content I am viewing? Like I think some scripts ...
5
votes
2answers
713 views

Closing an HTML tag without using the actual character

I'm currently learning how to perform XSS on websites, but there is a constant problem that keeps recurring that I'm sure must be easy to bypass. Quite often, the website will filter out quotation ...
3
votes
1answer
870 views

What is a DNS leak?

I'm planning on getting a VPN service (probably Privateinternetaccess) and read that it is imperative to plug DNS leaks. The only information I found on google describing what these are is here and I ...
4
votes
2answers
505 views

Any real world examples of GPS location data being used with authentication?

Are there any examples of how GPS coordinate (or any location data really) can be used to detect suspicious locations or validate well known locations? Specifically Highlighting new or unusual ...
8
votes
2answers
589 views

How dangerous is it to use third-party security audit tools?

This question is inspired by two related questions (How safe is backtrack to use, and How to Install, Configure and Use LSAT on Unix SE). Besides a dated (and patched) vulnerability in LSAT ...
0
votes
3answers
2k views

Is it possible to change the wifi password with a script?

I was wondering if it is possible to change the password for a wifi with a script instead of having to log-in to the routers firmware?
3
votes
2answers
23k views

How to setup GPU for Cracking WPA/WPA2?

I have a Dell N5110 15R Laptop that I'm planning to use for GPU based cracking of WPA/WPA2 passwords. The thing is, I'm not a really big fan of password dictionaries and rainbow tables, I'd rather ...
25
votes
4answers
25k views

What can an attacker do with Bluetooth and how should it be mitigated?

What are the security risks of Bluetooth and what technologies and best practices should be used to protect my device? What can an attacker do once a malicious device is paired with mine? ...
2
votes
1answer
4k views

Wifi login redirect applications

This may sound a bit naive questions as i am a beginner. But I do my best to put it into words. You may have experience when sometimes you want to use the internet in a cafe for example (with your ...
2
votes
2answers
580 views

Attacks in SSL and SSH

Assume that we have two end-host A and B connected by two routers R1 and R2. A wants to send a large file to B. A decides to establish SSH connection with host B using public key authentication. ...
0
votes
3answers
2k views

How to track down an IP spoofer?

We just installed a SonicWALL NSA 3500 and I've noticed a few times per day there will be an alert entry like this: Time: 01/02/2013 9:00:41.000 Priority: Alert Category: Intrusion Prevention ...
11
votes
3answers
2k views

Is SiteKey a valid defense against Phishing?

As described here, some banks use a SiteKey mechanism in an attempt to provide a defense against phishing. (This is a scheme where the user is shown a personalized image (each user has their own ...
27
votes
3answers
986 views

What is this authentication method/approach called?

Background: I want to implement something like this in our websites, and I'm looking for advice and possibly APIs that allow this out of the box rather than re-inventing the wheel, but I can't even ...
3
votes
1answer
11k views

Is there any way to crack bitlocker drive?

We have disk drive that encrypt with BitLocker . Is there any way to hack or crack and recover our data? my key is lost. AND we haven't any backup from those data!
4
votes
3answers
425 views

How similar are bots regarding their HTTP GET request?

Lets assume a botnet is attacking a website by HTTP GET flooding. To find the bots, the only way seems to be finding the similarities of the HTTP GET requests considering the URL and header fields, ...
0
votes
3answers
124 views

Lowest possible threshold for smartphone app login

I am developing an iPhone/Android game app. Currently users must register USERNAME (3 chars min, letters only) + PASSWORD (8 chars min, ascii only) before allowed into the game. Testing shows some ...
-5
votes
2answers
6k views

How can I spoof my IP address using the PHP curl function? [closed]

I want to spoof my IP address with the PHP curl function. I'm sending requests to a server with PHP curl, my IP address is $ip2, but I want the server to believe that the request is coming from $ip1. ...
20
votes
3answers
1k views

Are older viruses removed from virus definition files?

Antivirus software receives constant updates in the form of virus definition files, containing the patterns used to identify viruses. It is a feature present on most (if not all) major AV for at least ...

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