2
votes
1answer
193 views

Is winmail.dat a malware propagation vector?

Some of my coworkers use Microsoft Outlook (I believe) and have it configured in such a way that mail attachments are encapsulated in winmail.dat files. Apart from the general annoyance and lack of ...
2
votes
2answers
99 views

RSA key exposure

Is there any limit to the number bytes that an RSA key can be used before it can be exposed. In Symmetric encryption a Key is not recommended to be used to encrypt more than specific amount of data ...
0
votes
1answer
112 views

Looking For Compiled Version of Metasploit Local Windows Exploits [closed]

I am looking to have a standalone compiled exploits for all local windows exploits that Metasploit has right now. I was wondering if somebody has done this before or know a place that has these ...
0
votes
2answers
75 views

Revoke decryption capability

I'm looking for a way to encrypt some data in such a way that I can later revoke a single person's ability to decrypt it. We have a store of database backups that are currently encrypted using GPG. ...
2
votes
2answers
202 views

Is Certificate pinning different from CA pinning?

I am trying to understand if pinning a certificate essentially means pinning the CA or if they are different how so ?
1
vote
4answers
4k views

inquiry about SHA1 with RSA for certificate signature

As you all know, plenty of X.509 Certificates use (PKCS#1 SHA1 with RSA encryption) as the Certificate Signature Algorithm for generating the signature of 2048 Bits long. We know that SHA1 hash ...
3
votes
1answer
76 views

Are there any fast Homomorphic Obfuscuation techniques available?

Assuming that cryptography falls into one of three areas: Awfully weak protocols and algorithms, that are trivial to break with a low amount of effort and resources Cryptographically strong ...
4
votes
3answers
178 views

Does PHP have a XSS API?

ASP.NET has a cross site scripting API by default, however does PHP have a cross site scripting prevention API?
4
votes
1answer
279 views

Why would a user agent string be executed?

I'm having trouble understanding how a particular XSS vulnerability might arise in the real world. Guides for two of the exercises on hackthissite.org: ...
6
votes
1answer
107 views

Design a webapp that uses OAuth, but with tokens that can't be used by the operator?

I'd like to make a webapp that would allow users to OAuth with Stack Exchange, so that they can perform actions like voting through the app. I'm stuck at one point, though: I know how to perform ...
1
vote
1answer
3k views

SAML and kerberos what to use where [closed]

I came across SAML and kerberos, both are used to establish identity using assertions (tickets) so is there an overlap in their use ? Can somebody highlight their differences and point which ...
-4
votes
2answers
432 views

in which format this code is encoded ? and how i decode it? [closed]

"jmHMRWncShQ%3D" this is my encoded text , i want to know that in which format , this text was encoded , and also want to know that how i decode these types of code ??? this password may be ...
3
votes
3answers
279 views

Could using a generated key from an online service be considered a risk?

With some colleagues we're having a debate regarding the randomkeygen.com website. I do think that there is a security risk using the generated keys of this (or any of this kind) website. Why ? ...
1
vote
1answer
25 views

Is there an other place than the changelogs to see if a debian package is corrected or not?

I would like to know if there was an other place to see if a debian package is fixing a CVE than the changelog of the packet. For instance the packet bind9 1:9.7.2.dfsg.P3-1 is fixing the ...
1
vote
2answers
121 views

Password prompt before en-/decryption to prevent Side Channel Attacks on FPGA?

When we are using a FPGA for file, container or full-disk encryption, we need to input a password for encryption/decryption process. How can we prevent side channel attacks to steal password for a ...
1
vote
2answers
94 views

Security Measures For Banking Information

I am creating a site that will allow users to input their banking account number so I can pay them for their services. I am far from a security expert and would like some insights into the best ...
3
votes
2answers
453 views

What patterns does a signature based anti-virus look for?

I'm working on a uni project where I will attempt to create a malware that uses some form of genetic algorithm to "evolve" itself out of being recognized by a signature based AV software. For this I ...
1
vote
1answer
152 views

Is authentication through proxy sites safer?

usually in office or wherever whenever we are blocked with gmail and facebook websites,we used to browse the site with the proxy sites,we used to pass our login data through proxy sites,my question is ...
0
votes
6answers
779 views

Does ISP have control on all routers in their network?

When I was changing my router my ISP technician told me that he has remote access to all routers provided by ISP. Was that true? If that is a fact it scares me...
0
votes
3answers
150 views

Restrict request to Android and Iphone App only?

I have a ASP.NET/IIS server. I want to restrict my server to only accept request from Android and Iphone(IOS) applications. I have heard about HMAC. Can HMAC help me?
1
vote
1answer
145 views

Windows XP expiry security vulnerability of POS

Now that Windows XP will stop being supported by Microsoft, it has become common knowledge that it should be abandoned for a modern operating system in most cases. However, I have the corner case ...
2
votes
2answers
122 views

Will deferring password choice until after account activation improve security?

About one year ago, for about two months, lots of user accounts with unverified login email address started to pile-up. All addresses belonged to @yahoo.com. It appears (don't know for sure) some ...
1
vote
2answers
64 views

How can we know which debian package correct which CVE

We can found on the debian's website CPE/Aliases List, CVE List related to packages. But I can't figure out where can we know which patch of packages correct which vulnerabilities ? For instance : ...
34
votes
2answers
22k views

JSON Web Tokens (JWT) as user identification and authentication tokens

I'm implementing a REST service that requires authentication. I cannot store any per-user state (such as a randomly-generated token) because my service does not have direct access to a database, only ...
19
votes
3answers
813 views

Does (online) poker require cryptographically secure randomness?

Here’s a quote from a reddit discussion: … for poker [a cryptographically secure RNG] is completely unnecessary. If you have an appropriate unpredictable seed, and you are throwing away a lot of ...
0
votes
2answers
402 views

Is anti virus software supposed to clean up registry entries made by malware?

I just cleaned up a virus infection on my computer (running windows) by running an Anti Virus Scan. The malicious executable files are now deleted. However, the registry entries made by it remain. ...
4
votes
2answers
354 views

How is HTTPS Everywhere leaking my Twitter session from an incognito window?

I manage a couple of twitter accounts for businesses/websites that are separate from my personal account. For simplicity, I prefer to log in from an incognito window so that I don't need to log out of ...
1
vote
2answers
229 views

Using 1-day expiration GPG keys only… any disadvantages?

From the thread Does GPG key expiration add to security? , we know that the faster the keys expire, the greater our security. The minimum expiration for a GPG key seems to be 1 day. Thus, isn't it ...
2
votes
3answers
10k views

Someone keeps using my email address. What to do?

I have had a GMail ever since it was created, so it's an email address that is easy to remember, but also easy for somebody else to get confused with. Since I'm not going to post my email address ...
1
vote
1answer
52 views

If a site says its API for login can't be made available for “Security Reasons” should I be worried

Stack Exchange API 2.2 is finally out, (Yay!) Reading through the linked blog post, i notice the line: Login methods that don’t use OAuth can’t be made public for security reasons. Is this ...
1
vote
0answers
178 views

Is my approach to anonymous certificate based HTTP(s) authentication and secure private messaging sound?

I'm trying to work out a somewhat anonymous secure messaging system, and was hoping someone could validate my overall approach. Keep in mind, this all takes place over HTTPS. Authentication While ...
1
vote
1answer
539 views

SSO via HMAC and shared key. Can this be improved?

Given an authenticated user on A.com, we want to redirect the user to B.com so that she'll be immedaitely authenticated. The scheme I'm considering is very basic: A.com and B.com both share key S. ...
0
votes
1answer
100 views

International bank transfer, what is safe to share?

Okay, so I am selling a smartphone, to the guy who lives in UK, or that is what he says. So for the money transfer he asks me these things. Name Bank Name Account Number Iban Swift Code. Is it ...
1
vote
1answer
112 views

HTTP security headers on non HTML (images, JavaScript, etc)

Let's say, the HTTP security headers below are applied to all HTML pages of a site: HTTP Strict Transport Security (HSTS) X-Frame-Options (XFO) X-XSS-Protection X-Content-Type-Options Is it OK to ...
7
votes
2answers
611 views

How can this input-sanitizer function be defeated?

There's a Classic ASP application at my job that is (I believe) highly vulnerable to SQL injection. I want to prove to management that this code isn't secure, but all I'm able to do is insert "SQLINJ" ...
9
votes
4answers
512 views

Does my UI need to be secure if my API is?

I'm working on a project that is creating two new, separate web modules (possibly even on different servers) to support a new web application, with one serving up a static JS-based UI and the other ...
1
vote
0answers
84 views

how to implement 4-legged authentication for mobile application?

I have a REST web service which already implements oauth authentication mechanism via browser. I would to expose my API to a number of mobile clients programmed by third parties. In this scenario 4 ...
3
votes
1answer
233 views

WPA2 enterprise credentials involved in encryption?

Since encryption keys are session-based in WPA2 enterprise, if person A obtains person B's credentials, will person B's encryption key still be safe? Is there any way person A could use person B's ...
7
votes
5answers
2k views

Forensic research: What OS to use [closed]

I have been given an assignment from my school, in wich I have been given a Virtual image of a compromised system. The first thing I need to do is setup a environment to wich we can mount the image. I ...
1
vote
0answers
62 views

How do I determine whether a Linux-based router still has the default password? [duplicate]

My goal is to check if the password used by admin is the default password. I work on a Linux-based router. I know the password is stored as a hashed value in /etc/passwd. In generic Linux machines, ...
1
vote
1answer
669 views

RESTful API URLs and Denial Of Service attacks

I overheard the following statement today: We shouldn't use /api (e.g. in a RESTful URL like /api/v1/users/get) in our RESTful URLs anymore because it makes it easier for people to Denial Of ...
0
votes
1answer
342 views

What is an offsite facility as per PCI DSS requirement 9.5.1?

PCI DSS Version 3.0, Requirement 9.5.1 says that we have to store media backups in a secure location, preferably an off-site facility such as an alternative or backup site or a commercial storage ...
0
votes
1answer
145 views

Key-Exchange Algorithms VS Local Key Generation?

I was wondering the difference in term of Security, Computational cost and Network overhead between the use of : A Key-Exchange Algorithm (e.g. Diffie–Hellman) to set up a symmetric key. The ...
0
votes
2answers
656 views

What could be the reason for the high traffic on the local network? [closed]

In our small company we have very high traffic outbound from local network to server which is getting blocked, and slow downs our server respond time. Especially at night. I am not security ...
0
votes
2answers
270 views

What are the Standard Practices for Securely Storing Encryption Keys in Databases

I have a requirement for storing multiple symmetric encryption keys in a database. What I want to know is, are there any standard, accepted practices for storing these keys in a database ? To add a ...
0
votes
3answers
283 views

How to hide the sensitive data from the developer of the application and the DBA of the database

I have simple situation, we are in IT center and I need to develop a simple one form 4 fields that contains a salary field, I need the programmer of our IT center could not know the salaries of other ...
1
vote
2answers
78 views

Hardware Dependent Encryption [closed]

I am looking for a Linux based encryption system (like Truecrypt) that has the ability to do the following: Encrypt a partition or external drive that it can only be read from the same computer ...
-2
votes
1answer
60 views

websites with vulnerabilities INFO [duplicate]

Websites like http://www.cvedetails.com/ http://www.securityfocus.com This websites show information about vulnerabilities and exploits, which other sites are similar?
0
votes
1answer
1k views

Is ASP.net More Secure than PHP in GENERAL? [closed]

In other words, my (long version) question is: Are developers able to get away with, more using ASP.net than PHP in terms of writing secure code for their apps? I ask this because ASP.net has many ...
1
vote
1answer
419 views

How should IPSec be configured to provide a protection at least as good as my current Stunnel configuration?

In private network (as in using a private IP address space) at a cloud provider, other customers have access to the same private network. I have secured the communication between many hosts and ...

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