3
votes
2answers
1k views

Shutdown: Clear virtual memory pagefile

I was reading about Windows Local Policy of "Shutdown: Clear virtual memory pagefile". I need some clarification on this brief policy description: What do it mean by operating system that allow ...
9
votes
3answers
7k views

CSRF Token in GET request

According to the OWASP testing guide a CSRF token should not be contained within a GET request as the token itself might be logged in various places such as logs or because of the risk of shoulder ...
3
votes
2answers
9k views

Does Chrome OS Allow Executable Files?

My company has some real security issues and I am wondering if using Chrome OS can be some solution to my problem. Typical Windows computers seems all to vulnerable to attacks from malicious images ...
1
vote
1answer
284 views

Do I need logging enabled in my rules in IPFW for sshguard-ipfw to work/blacklist ip's?

From the FreeBSD handbook: Even with the logging facility enabled, IPFW will not generate any rule logging on its own. The firewall administrator decides which rules in the ruleset will be logged,...
34
votes
2answers
9k views

Criteria for Selecting an HSM

A very sensitive application has to protect several different forms of data, such as passwords, credit cards, and secret documents - and encryption keys, of course. As an alternative to developing a ...
-1
votes
1answer
142 views

Where else is IPSec used, besides with VPNs? [closed]

IPSec is most commonly used to secure VPN traffic. Where else is this protocol suite used? What else can it be used for?
5
votes
1answer
529 views

Is Taking advantage of the IsNumeric() Function In VB.Net Through SQL Injection Possible?

Suppose this is the only mitigation used on a server: Dim IDPerson IDPerson = Request.Querystring("id") If IsNumeric(IDPerson) = True Then IDPerson = IDPerson Else IDPerson = 0 End If IDPerson is ...
9
votes
2answers
2k views

Do keyfiles actually add any meaningful security in the presence of strong passwords?

In the context of protecting access to local encrypted files or devices against a determined (and competent) adversary, is there any reason to believe that the use of a key file actually presents a ...
7
votes
4answers
2k views

Does disabling .htaccess improve security?

I have a new WordPress website that has been installed on a server not managed by me. Its admin has enforced a few rules in order to increase security, I'm not entirely aware of its entirety but it ...
0
votes
1answer
1k views

Where can I find a list of Indicators of Compromise (IOC) conditions?

OpenIOC.org has several schemas defining Indicators of Compromise. The Schema is defined here: http://schemas.mandiant.com/2010/ioc/ioc.xsd While under IndicatorItemContext/search says it is xs:...
2
votes
2answers
375 views

Can unencrypted keys & logins be kept out of program memory?

No matter what technique is used to store encryption keys & logins, it seems that all roads lead back to program memory (as far as I know), as an unencrypted version of the keys & logins will ...
1
vote
3answers
2k views

How to use public key in ~/.ssh for asymmetrical encryption with OpenSSL

I want to do an asymmetrical file encryption: openssl genrsa -des3 -out private.key 4096 openssl rsa -in private.key -pubout -out public.key openssl rsautl -encrypt -pubin -inkey public.key -in a -...
15
votes
3answers
7k views

Cross Site Scripting without special chars

I'm testing a web application and I found a XSS vulnerability. I can break a tag and inject some code to the application but nothing potentialy dangerous for the client. The application has a filter ...
0
votes
2answers
3k views

Security benefits of Single Sign-On [duplicate]

What are the benefits of a single sign-on implementation from the point of view of security? From my point of view, if the account is compromised the attacker has access to any resource, so ...
33
votes
4answers
2k views

What attacks, if any, are possible against Security Support Provider Interface (SSPI)?

I've been looking at SSPI recently, as it is used for authentication in a variety of Microsoft products. From the looks of it, it's based on GSSAPI and provides an abstraction for wrapping various ...
3
votes
2answers
5k views

What kind of security injection are these traces of, SQL, javascript, or otherwise?

I've tried to secure all information going to the server to make sure there are no SQL injections. However there are new folders on my server with weird names. One of our online services is such that ...
9
votes
2answers
915 views

How is an HTTPS login secure when pages use HTTP?

When someone go to eBay's website, they use an unencrypted connection between their PC and eBay's server. If they sign in, they are redirected to a secure site identified by its certificate and may ...
19
votes
3answers
2k views

Could my bank's two-factor authentication be hacked?

When I attempt to log in to my bank, an SMS code is sent to my phone. I then type this nine-character code into the bank's Web site, to login to my account. Is this vulnerable to attack, without ...
3
votes
2answers
892 views

How actually is Tor hidden service hidden from public?

Let's suppose I have a web server X, listening on port N for instance and configured as a Tor hidden service. How and where is implemented its' hiddenness from public access?
6
votes
3answers
562 views

How I can prove that SSH attacks are not from my application?

My ruby on rails web application is hosted on Linode. Linode opened a ticket and blamed my Linode server for attacking other servers. The logs revealed that it's a SSH brute force attack which ...
2
votes
1answer
219 views

Can linux (be made to) detect foreign connections to the ram bus?

I've been made aware on many answers and some comments that an attacker can read memory while a system is still running by attaching some sort of connection directly to the ram bus. Can linux ...
5
votes
3answers
25k views

Can a website still detect my real MAC address even if I use different virtual machine each time I visit the website?

Suppose I use a proxy and a different virtual machine each time I visit a particular website, will a website still be able to detect my MAC address and/or uniquely identify me? Assume that the website ...
-4
votes
1answer
4k views

Is my computer being hacked? How can wireshark reveal if I am being hacked? [closed]

So last night I was using openVPN via my personal cloud server to watch some Hulu. About 15 minutes into the movie I noticed my network stats were download: ~250 MB upload: ~1.8 GB This is ...
5
votes
1answer
1k views

Malicious script analysis

Could somebody tell me what can this malicious code do? I see that in the beginning it turns off the error reporting and logging. Then something with get post method and files stuff. But I am not ...
8
votes
2answers
847 views

Best practices for integrating external javascript?

I'm looking for some standard pieces of advice on how to integrate external JavaScript into a website. For example, on mywebsite.com: <script src='//externalsite.com/js/script.js'></script&...
28
votes
3answers
6k views

Why can a Tor exit node decrypt data, but not the entry node?

Me -> Node A -> Node B -> Node C -> destination The documentation on Tor always states that only the exit node C can see plain text data. How is this possible without me talking to Node C ...
2
votes
1answer
909 views

How can I better protect my LAN from Internet Hackers

My computer is connected to my Netgear router which is also the switch for my network, this in turn is connected to my cable modem which is just a bridging device. My router is blocking scans and ...
1
vote
1answer
112 views

How do I verify versions of Adobe?

I ran a vulnerability scan against a server and it is pulling back a lot of Adobe vulnerabilities. I ran a Wireshark capture on the scan but I can't seem to write up a Wireshark filter on the packets. ...
15
votes
2answers
6k views

How secure is the Windows event log, and how is it secured?

I'm curious as to just how secure the Windows event log is, and exactly what security measures it uses. Does it include any defenses against tampering - for example, does it use digital signatures or ...
6
votes
2answers
2k views

How do I block LinkedIn from extracting data from Microsoft Exchange Server?

LinkedIn now offers the ability to take a real user and password from the end user and connect to Exchange Server for the purpose of importing contacts into their system. (To do this yourself, click ...
7
votes
3answers
1k views

Out-of-the-box Network Intrusion Appliance for non-Power User

First, let me apologize if any of this question is naive or beneath the scope of this board. Bear in mind the context and that I'm asking as an attempt to exhaust all resources. Also, I understand if ...
8
votes
2answers
7k views

Exploiting PHP via GET params

To be clear, this is in the interest of ethical testing to secure an application on behalf of my work. Now that that's out of the way, here are the details: Un-sanitised GET params are used in a ...
0
votes
0answers
38 views

How can I determine the encryption used by knowing input and result? [duplicate]

Is it possible to determine the encryption or hash used if I know the original input and final output? There is a similar post here: Determine encoding/hashing methods used based on knowing the input ...
10
votes
3answers
589 views

What simple security considerations can I / should I make for a read-only API?

Right now I'm setting up an API, to be consumed on the client-side to set up a directory site. I'm wondering what extra steps I need to take just to prevent people from gaining write access to the ...
-6
votes
2answers
509 views

the Informix password crack

I get some hash like: username sowainformix salt 7307821250330563328 hashed_password HaHvvzanjp_lPZgHLu0KHquN.Q4t98EF48csXk1QTJs hash_type SHA-256 updated flags ...
3
votes
1answer
293 views

What is the security purpose behind the “enable editing” of MS Word?

Whenever I open MS Word documents from my email, they open in "Protected View" with edit options disabled by default. As per my understanding, the hyperlinks used in the main document would be linked ...
2
votes
1answer
5k views

What is the best place to put my IDS network sensor? [duplicate]

I can only place a single network sensor somewhere within my network. Would it be best placed between the border router and firewall, or between the firewall internal LAN?
-1
votes
2answers
254 views

Interpreted VS Compiled web frameworks and trust

OK here is a big question. Interpreted languages have many advantages over the compiled languages when it comes to web application. But what is the ftp server is hacked or the web hosting company ...
8
votes
1answer
1k views

Why is it hard to prevent scalpers from using bots to buy up lots of concert tickets?

The New York Times recently has an article that talks about how scalpers are using bots to programmatically buy up lots of concert tickets, making it harder for ordinary fans to buy up tickets. For ...
-1
votes
1answer
1k views

Is AES more secure than Rijndael? [closed]

Which algorithm is generally considered to be more secure, and is AES-192/AES-256 still considered to be secure? After reading this it's lead me to belive that the Rijndael algorithm would be a more ...
5
votes
3answers
2k views

Why do we allow SSL certificates to be replaced before their expiry date, without revokation of others?

Imagine a situation where a rogue CA creates a certificate for your site. Since the user's browser trusts the CA, it will accept the certificate without any fuss. However, the site's real certificate ...
8
votes
3answers
6k views

Is it safe to have a DNS record pointing to 127.0.0.1?

My development server is on my local machine (127.0.0.1). I have created an A record in my DNS settings that points dev.mydomain.com to 127.0.0.1 so that I can use this domain name for accessing my ...
-1
votes
1answer
259 views

Malware persistence past a drive wipe? [duplicate]

Are there any known instances of malware persisting past a drive wipe and reinstall, through modified bios, or firmware on one of the machine components?
7
votes
2answers
2k views

Does the md5 (or any hash for that matter) of a string include the null terminator?

Does the md5 (or any hash for that matter) of a string include the null terminator in its calculations? That is does the hash of a string equal the hash of the sequence of bytes that represents the ...
1
vote
1answer
285 views

Enforcing software expiration on virtual machines

It is possible for virtual machine guests to bypass the software expiration timers for paid software. This example shows one way to do this on VMWare. A simpler method is for the user to "revert to ...
-1
votes
1answer
4k views

Virus affecting MS Office files

(I'm not sure if here is correct place for asking this question) I've come across a strange virus that changed contents of all MS Word, Excel, PowerPoint and image formats. It places this ASCII ...
4
votes
3answers
481 views

Understanding JVM zero day in relationship with other runtimes

I am a .net and php developer and since java has been in the news recently thanks to the string of zero days, I decided to brush up on security. In regards to the java zero days, this question has ...
9
votes
2answers
3k views

“Official statement” on php.net : CRYPT_BLOWFISH is strongest hash algorithm. Why?

First: I asked this question on stackoverflow and was kindly asked to post this here again. See the original question here. According to the [early] doc pages of the new PHP 5.5 password hashing/...
14
votes
2answers
9k views

CSRF protection and Single Page Apps

I am in the process of writing a thick client web app using Angular.js (single page app) and was wondering what are the best practices for securing the app using a CSRF token. Should I send a CSRF ...
-1
votes
2answers
11k views

How can using a VPN increase network speed? [closed]

There are lots of guides online which suggest that using a VPN or proxy will gain better speed or 'free internet' however this seems unlikely. If my ISP is performing packet shaping on my connection. ...

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