12
votes
3answers
581 views

Can signing too much compromise a private key?

Can a collection of many messages signed with the same private key be abused to either forge signatures so some (but not all possible) messages, or even worse to reconstruct that private key with less ...
43
votes
3answers
2k views

Mars Curiosity Rover Security

Does the software in the Mars Curiosity Rover have any security features built-in? I can't imagine how someone would hack into it, but if the rover does indeed have some protection against malicious ...
9
votes
2answers
2k views

How do I protect my Gmail account when accessing it via an Android smartphone?

I have a Gmail account that I also access via an Android smartphone. The mail account could be used to reset passwords for other online accounts, so I want to tighten up the security around this ...
9
votes
3answers
1k views

Publicly available Botnet Traffic dataset

Is there any publicly data set on botnet traffic for machine learning purposes. i.e traffic set for both bad and good bots
0
votes
1answer
362 views

Virus developers groups [closed]

Are there any groups of virus developers around anymore? Like 29A group and bunch of other groups few years ago. They never released their codes, never used then to steal data etc.
4
votes
2answers
1k views

Is a new protocol needed for credit card transactions?

It seems like many places spend a ton of time and money securing their site for credit card transactions. However, there are still millions of credit card numbers being stolen. Fraud is big business, ...
10
votes
2answers
1k views

Security of Log Files - Injecting malicious code in Log files

As part of my course project I'm trying to understand various security frameworks and best practices. One of the very popular approach is to maintain Logs. My question is about the security of the ...
2
votes
2answers
8k views

Sample challenge questions for use with self service password reset and validation

I'm building a secure password recovery feature similar to the one described here. During the final phase of the password recovery, the user is asked a recovery question to verify their identity. ...
1
vote
3answers
268 views

Is purging AES keys allowed legally?

We're developing a service, that encrypt e-mail with AES algorithm. Keys are stored in our server. We thought about having an expiration service, that is deleting the key from our server. This ...
66
votes
6answers
12k views

Why shouldn't we roll our own?

Why shouldn't we create our own security schemes? I see a lot of questions around here about custom crypto and custom security mechanisms, especially around password hashing. With that in mind, I'm ...
1
vote
1answer
59 views

Dangers of a vulnerability in a local installer?

I sent a message to my dev manager about a buffer overflow in our (widely distributed) installer, and received a response that it didn't matter as it wasn't server code. Other than the fact that if ...
-1
votes
2answers
235 views

What are the security advantage of new redirecting method used by Gmail and Facebook?

When clicking on the any link in gmail or Facebook,it redirect to that link by some other ways. What are the security advantage of new redirecting method used by gmail and Facebook?
1
vote
1answer
1k views

How many possibilities can today's computers check (per second) in a SHA512 hash of a 50-byte-long random entry? [closed]

The problem I want to avoid is "brute force" attacks against a database. So if I add a 50-byte-long cryptographically random salt to my information (which I don't need to retrieve, just its hash) - is ...
8
votes
2answers
568 views

What kind of certificate do I need to be able to sign my own subdomain certificates?

We are making a web-based application that will be installed in intranets as a virtual machine image (we send the user a CD with the virtual machine image, user runs it in a VMWare/VirtualBox/...). ...
1
vote
1answer
240 views

Can I bypass my own networked camera?

We have networked camera on my house. My brother is protected by user name and password. When I check my network in laptop, I can see the networked camera in my network but when I click to open, it ...
3
votes
1answer
270 views

tcp seq number prediction

While testing a system, nmap told me that the tcp seq number prediction is really low, (trivial joke). There is only one system in the whole range that gives me that answer. Some papers, e.g. a ...
2
votes
2answers
318 views

Web Application Firewall Rules

For Network Layer Firewalls we have different sort of redundancy and consistency checks like rule shadowing, that can impact the performance of firewall. Do similar kind of checks can be applied on ...
1
vote
0answers
122 views

What's the deal with SMS archiving? [closed]

The other week I was texting a friend of mine, and something happened that I haven't experienced before. Instead of receiving the text I'd just sent, my friend received a text I sent several months ...
0
votes
3answers
505 views

Is it possible to “close” a port by dos'ing it?

If I see port 25 is open, but I dont have access to the program running the smtp server, could It be flooded with enough information to make it unusable (but not affect any other services)?
0
votes
1answer
1k views

My server is being DDoS'ed with 13 gbit and my provider nulled my ip, taking down my server - what can i do [duplicate]

Possible Duplicate: How can a Software application defend against DoS or DDoS? Accessing a site (which is) under a DDoS Null-routed IP 85.17.154.139 8/5/12 In progress 13Gb ddos ...
3
votes
1answer
2k views

Header opening a PDF file, can someone hack a website from there?

Can someone hack a website that uses this kind of header to open a pdf? <?php header("Content-type:application/pdf"); // It will be called downloaded.pdf ...
4
votes
2answers
881 views

Detect changes in /boot when using full disk encryption

When running a fully encrypted linux system using dm-crypt, the /boot partition has to be unencrypted to boot, as far as I know. I've setup a server that can be unlocked remotely by connecting to a ...
3
votes
3answers
567 views

Need help decoding suspicious Perl .cgi files

I found three (identical) .cgi files in the "cgi-bin" directory of a hacked website account. My knowledge of Perl is insufficient to decode them. I see some regexp with code execution, but I don't see ...
1
vote
1answer
268 views

What CVE identifier will follow after CVE-2012-9999?

I am writing an application which uses CVE identifiers to cross-reference vulnerabilities. I would like to make it compatible with future CVE identifiers. If it happens that there are more than 9999 ...
3
votes
1answer
199 views

How should I store a password to allow people to enter single characters from it? [duplicate]

Possible Duplicate: How do some sites (e.g. online banks) only ask for specific characters from a password without storing it as plaintext? Some banking applications ask for random letters ...
4
votes
1answer
96 views

Should I take care of mysql credentials?

My mysql server is configured to not allow remote connection. Should I seriously care about mysql user and password in this case?
3
votes
1answer
2k views

What camera resolution is required to identify human faces?

I've been asked to recommend an IP-based security camera in attempt to prevent, or at least record, repeated acts of vandalism occurring at the front of a property. Budget is a concern (The damage ...
4
votes
1answer
527 views

How to verify the authenticity of Facebook users?

While I was not surprised at all by Facebook stating that "8.7 percent of accounts belonging to its 955 million monthly active users are fake"; link is a news story that providers a summary of their ...
3
votes
1answer
260 views

Do I need to purchase a PCI DSS certificate?

I'm creating an e-commerce website and I was wondering, do I need to purchase a PCI DSS certificate or do I just need to comply with the standards?
2
votes
1answer
384 views

How does disk encryption mounting work with large disk and low RAM?

For example with Truecrypt or bitlocker, when my hard disk contains 500 GB encrypted data and 256 MB Free RAM, how is the data decrypted/disk mounted when I turn on my computer? If the entire disk is ...
0
votes
1answer
483 views

How securely use Firefox Add-on to prevent steal data?

Some videos on YouTube demonstrate how a Firefox extension can collect login information used to login to websites such as Facebook. After installing this tool/malware as Firefox Add-on, I observed ...
2
votes
2answers
1k views

Is there an index of all md5 collisions?

I am about to build a caching system based on md5 to generate file names out of lists of natural numbers. The inputs would be groups like: 1,18,94,100,266,1854. I know there are some collisions in ...
1
vote
1answer
428 views

Diagnosing possible svchost.exe thread on Windows 7

I used win64dd.exe to get a memory image on a 64-bit computer running Windows 7 and had Mandiant Redline analyze the image. One of the things marked red was one of the svchost.exe processes. Redline ...
0
votes
1answer
2k views

Are phone calls normally recorded? [closed]

A person borrowed a cellphone and made a prank call and the following day the police contact the owner of the phone. The constable said "I can pull your call logs and you would have no say in it". My ...
1
vote
2answers
192 views

Protecting passphrases within an application

First off, I'm not very familiar with encryption best-practices. My use-case is simple: I'm creating an application that will be reading encrypted documents and decrypting them dynamically to do some ...
3
votes
2answers
2k views

How Is It Possible For Hackers To “Dig Up The Dirt” On People?

Like the title says, I was wondering how its possible for hackers to "dig up the dirt" and get peoples personal information such as address, credit cards, bank accounts, social insurance number, etc? ...
3
votes
2answers
867 views

How to make database of IP addresses anonymous?

I have to perform ip address connection stats anonymously because the data posses security risk, so how do I do it? Is it just like this, that the ip numbers and networks are replaced by random ...
1
vote
1answer
512 views

Securely tell the user his password in new WHM/Cpanel account creation?

I understand it's not safe to send passwords via email but when accounts are created via WHM/Cpanel, I have to let the user know what password I created for them. How can I relay the password safely?
1
vote
2answers
375 views

What are the go-to books on server security? [closed]

To learn how to keep things secured, and to do a good job at it, what books should one check out?
2
votes
4answers
160 views

The email system is compromised - what can you do?

I have a friend at a 7 person company which has an issue with email confidentiality. Each time they send out an email with quotes to customer, the competitor get the message in 30 minutes and send ...
4
votes
2answers
2k views

Can GPG be a full replacement for PGP?

I am working on automating a PGP process and plan to replace using PGP with GPG. But I need to make sure GPG can actually be a replacement. Does GPG do everything PGP can do? I've researched a lot ...
-1
votes
1answer
201 views

Is .bank owned by banking industry or not? [closed]

According to https://idc-insights-community.com/financial/financial-services-technology/the-four-letter-word-that-could-change-the-busines Banking Industry was lobbying for .bank But as I read this ...
8
votes
3answers
6k views

Is multiple encryption a good idea?

I know that many encryption algorithms, while secure, have vulnerabilities. To reduce risks, would multiple encryption like this Blowfish_CbC ( Rc2_OFB ( AES128_CBC (myfilecontent))) be a good ...
44
votes
6answers
7k views

Virus Encoded in Video

So I'm not familiar at all with IT Security, but I'm a bit curious about something. I was watching a TV show and at one point, a virus spreads through an office. They investigate and find out that the ...
0
votes
1answer
160 views

How to secure unprotected Telnet Server on Droid 3

I have a Droid 3 and for whatever reason it has a Telnet Server running on port 23. It requires no credentials and it has root permissions. It bothers me when I'm connected to wifi networks because my ...
2
votes
2answers
13k views

known public exploits for vsftpd 2.0.1/2.0.5

I somehow noticed that there were numerous reports of security vulnerabilities of vsftpd 2.0.1~2.0.5; however, there just seems to be no public exploits. The server I am working on has vsftpd 2.0.5 ...
4
votes
1answer
608 views

Intrusion attempt? Host 'somedomain.org' is not allowed to connect to this MySQL server

We have a web site hosted on a shared server. The hosting company's MySQL servers are hosted on a different server. We collect certain kinds of requests through a web form, and write them to a ...
1
vote
1answer
550 views

What security concerns exist in running a glassfish app directly on port 443

I have installed Apache http server in front of glassfish based on recommendations i had in this question. I have been told that i will run into performance problems along with security issues. I was ...
0
votes
1answer
296 views

Can I export my digital certificate to this emtec usb

It is said here http://www.emtec-international.com/sites/default/files/s530_aes_en_0.pdf 2048 bit RSA module: ready for PKI application SHA256 data hashing: ready for digital signature Does it ...
2
votes
2answers
169 views

Preventing Client PC's from accessing C&C machines

At my office I find us constantly fighting with malware. All users run under the "user" level, we have McAfee and have recently reviewed the Best Practices guide to ensure we adhere to it, all of my ...

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