All Questions

10
votes
2answers
462 views

Risks of Using Google Native Client

I was wondering if there were any possible risks in using Google Native Client. I know it is sandboxed, but the idea still seems risky, and at least leaves another route open for compromising your ...
7
votes
4answers
447 views

How big is the risk, to enable scripting in the Web browser?

While browsing the web, many websites executes scripts (mainly javascript) that are executed without the user noticing. How big is the risk, to get Malware unnoticed while surfing with scripting ...
16
votes
8answers
1k views

Are signature based antivirus or antimalware effective?

Are signature based antivirus or antimalware solutions effective? Has the battle been lost against the ever increasing amount of malware, particularly rootkits, that are in the wild?
11
votes
5answers
231 views

What are the areas to focus on to protect users and devices?

What are the areas or technologies to focus on to protect users and devices? Are patching, antivirus and firewalls still the main areas? How do you defend against attacks against vulnerabilities ...
9
votes
4answers
859 views

RBAC model: user in two roles access dilemma

I am implementing the Role-Based Access Control (RBAC) model security system and I have a dilemma: one User1 is in Role1 and is in Role2. Role1 allows access to the Resource1 and Role2 denies access ...
12
votes
7answers
534 views

Is the law the only thing stopping many sites from being hacked/cracked?

There are so many common vulnerabilities out there, so how is it that every Wordpress blog, for example, isn't hacked into often? It seems like the security community is overly paranoid, unless the ...
21
votes
7answers
9k views

If you could have only one book on web security, what would it be?

If you could have only one book on web security, what would it be?
10
votes
3answers
799 views

If an XML document is not validated as “Well Formed” or checked against a schema, what are the risks?

When processing an XML document in my application, what are the risks? E.g. if it is not "Well Formed" or is not checked against a schema.
26
votes
4answers
4k views

How secure are my passwords in the hands of Firefox using a Master Password?

I'm relying on Firefox to remember my passwords, using a Master Password of more than 25 characters. How secure is this set-up?
69
votes
6answers
31k views

How should I distribute my public key?

I've just started to use GPG and created a public key. It is kind of pointless if no-one knows about it. How should I distribute it? Should I post it on my profile on Facebook and LinkedIn? How about ...
7
votes
2answers
356 views

What key metrics should a CIO rely on to gauge the extent of IT risk exposure?

Note - This was originally asked in another Area51 proposal, which has since been deleted.
11
votes
3answers
336 views

What risk analysis methodologies should I use?

I've heard of FAIR, and that seems pretty great. What other methodologies are there? How do they work? What are their benefits, and their drawbacks compared to others? When is each appropriate? ...
4
votes
4answers
678 views

What issues are most important to cover in Corporate Security Policy?

What about a Privacy Policy? Both internal, and external. From another Area51 proposal.
19
votes
10answers
1k views

Is it ever appropriate to fight back?

When an website or system is being attacked, is there ever a scenario where it should automatically take action against the attackers rather than just passively handling the attack? If so, what ...
16
votes
1answer
2k views

What is a Web Application Firewall?

What is a Web Application Firewall (WAF) and what are some of the things to look for in an effective one? Why would you deploy a WAF instead of just an IPS?
7
votes
1answer
306 views

How to properly generate and use (m)TANs?

If you have an application that uses transaction authentication numbers (TAN) or mobile TANs, how do you generate them correctly? What are the pitfalls? And should you only allow the next number on ...
13
votes
4answers
465 views

What are the most important security checks for new web applications?

I'm wondering what are the top priority security checks you should make befor launching a new webapp? I'm guessing brute force vulnerabilities and cross-site scripting. What are the other things you ...
13
votes
2answers
789 views

How can I test my web application for timing attacks?

race conditions, etc. Are there automatic tools for this? What manual techniques should I use? From the Area51 proposal
19
votes
4answers
4k views

What tools are there to inspect Flash SWF files?

I am performing a penetration test against a website that uses Flash heavily. What tools can I use to examine the SWF file for vulnerabilities? From the Area51 proposal.
5
votes
2answers
848 views

How does OWASP ESAPI protect against direct object reference vulnerabilities?

What other good solutions are there? From the Area51 proposal
64
votes
2answers
12k 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 ...
11
votes
3answers
1k views

Is null-byte injection possible in Java filenames?

From the Area51 proposal
24
votes
3answers
773 views

What are the security risks in enabling ipv6

We are considering enabling ipv6 on our webservers, so that we are reachable with both ipv4 and ipv6. Are there any security issues we should consider when enabling ipv6?
3
votes
1answer
606 views

How many people are required to build your own 24x7 security operations center (SOC)? Rough costs?

I have received this question from a few clients, but I have 0 experience building a 24x7 SOC.
9
votes
3answers
534 views

What FOSS software do you like to use to build intrusion detection stacks?

Start-ups and organizations with limited budgets that are security conscious are often encouraged to deploy intrusion detection stacks. Given that prevention will always fail, intrusion detection ...
16
votes
4answers
2k views

Open-source penetration-test automation

Has anyone built a metascript, or a `script of scripts' useful during a penetration-test? Do you use Metasploit RC files? A network vulnerability scanner in a special way? A command-line, custom, or ...
2
votes
1answer
93 views

What does the Local exactly mean in CVSS?

CVSS (http://www.first.org/cvss/) provides the keyword local in the base vector. The definition given by FIRST is somehow not so clear for me: Local: Exploiting the vulnerability requires either ...
8
votes
4answers
554 views

What information should a error log record?

I want to populate my error log with useful information if and when errors occur. I'd like to use the log to be able to spot and fix bugs on my site, but also to potentially log hack attempts. For a ...
9
votes
3answers
567 views

What are a few good analogies to describe the benefits of a strong security program?

Given communication is king, what are some of the favorite analogies you like to use to describe the benefits of security to organizations needing security but new to security?
9
votes
3answers
729 views

How much money does it take to equip a fully funded black hat team? How much money to defend against such a team?

Richard Bejtlich wrote in July 2009 the following: "I submit that for $1 million per year an adversary could fund a Western-salaried black hat team that could penetrate and persist in roughly any ...
21
votes
3answers
2k views

Pitfalls of using OAuth for mobile Applications

OAuth seems to be getting a lot of traction at the moment as an authorization solution for web applications and mobile applications. I'm interested in understanding what the pitfalls of using OAuth ...
23
votes
1answer
15k views

What is the difference between RBAC and DAC/ACL?

What are the benefits of each, and when should I choose one over the other? Are there situations where these should be merged? Do you have examples of common usages? And what about MAC, where ...
17
votes
10answers
1k views

What are security issues which are specific to cloud computing?

Moving almost everything to the Cloud gradually becomes a mainstream. Are there any security issues, which appeared together with this trend? What everybody should check out, from the security point ...
8
votes
1answer
416 views

What steps do you take to keep both your computer and internet browsing secure?

I am thinking about your browser setup, antivirus protection, vpn, browsing best-practices and so on.
21
votes
3answers
8k views

What benefits does Nessus have over OpenVAS?

Nessus and OpenVAS appear to have fairly similar features. Why would you choose one over the other, besides the benefit of commercial support (which isn't available for Nessus Home Feed users ...
30
votes
5answers
39k views

Advantages and disadvantages of Stream versus Block Ciphers

Encryption algorithms such as Blowfish,AES,RC4,DES and Seal are implemented in one of two categories of ciphers. What are the advantages/disadvantages to the type of ciphers?
9
votes
1answer
363 views

Which files are more insecure than others?

Regarding the fact (in case it's not always the proven fact, then an opinion) that there are types of files more safe for handling them after getting from the Internet than the other, i'd like to ask: ...
6
votes
2answers
915 views

Antivirus, antimalware and antispyware software. What is the difference?

What is the difference between antivirus, antimalware and antispyware software? If any clear distinction can be defined.
18
votes
4answers
1k views

IPsec (Internet Protocol Security) facts

Internet Protocol Security (IPsec) is a successor of the ISO standard Network Layer Security Protocol (NLSP). What are the advantages, disadvantages, other interesting facts regarding the protocol?
11
votes
4answers
661 views

Vulnerabilities common only in mobile solutions?

I was wondering if there are any threats for web-applications used on mobile phones that haven't been known in the "full size" browsers earlier. I haven't heard of any serious or common problems that ...
8
votes
3answers
476 views

What security features should be present in every web-based CMS?

What are the most important security features that a web-based CMS should offer? What's vital? What would be nice to have? What features should the CMS not attempt to do? Please note: I'm looking ...
6
votes
3answers
314 views

How to open a file from the Internet in a secure way?

Sometimes I have to open files (doc, zip, txt, pdf and some other) downloaded from the Internet (from unproven sites) on my computer. How could I mitigate the risk and open them in a more or less ...
22
votes
6answers
1k views

Online password managers

Can online password managers be used for storing and managing passwords? I mean from the security point of view. I understand that those systems can be different and some deserves more trust than the ...
19
votes
2answers
4k views

How does a crypter for bypassing antivirus detection work?

I am talking about crypters used to encrypt files like viruses and keyloggers for the sole purpose of bypassing antivirus detection. How do they work?
18
votes
4answers
3k views

Malwares source repositories. Where?

As the best way to learn is to read the code, do you know where I can find malware/virus/whatever source code to read?
11
votes
2answers
2k views

How to test against DDoS in a controlled enviroment?

Can you suggest me methods or tools that can help in simulating a DDoS attack in a controlled enviroment (like my private lab)?
7
votes
3answers
2k views

Management Network Best Practices

I am looking at setting up a Management vlan, on which I will put all the Management interfaces for my various networkable devices (Firewall Mgmt Interfaces, Server RAC, WAP Mgmt Interfaces, etc). ...
24
votes
11answers
4k views

Resources to learn about security

I am currently just finishing a undergrad computer science degree, but I know very little about computer security. What are some good resources (aside from this site) to learn the fundamentals of ...
11
votes
5answers
3k views

What is the benefit with using encrypted RAM Memory?

I sometimes hear that encryption is used for the RAM Memory, but I don't really understand why this is needed. Why is RAM Memory needed to be encrypted? and is this done by the hardware, the ...
8
votes
4answers
3k views

How effective are reverse proxies as a web application security measure?

How effective are reverse proxies as a web application security device? Which types of threats do they mitigate against and which don't they? For example are they more effective in preventing ...

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