5
votes
4answers
5k views

Monitoring system calls (in a reliable and secure way)

It there a reliable method of “monitoring” system calls under Linux? There is strace for example to monitor system calls and signals. Is there a way for a process to dodge out of strace? If yes, is ...
4
votes
3answers
852 views

Wrapping system call (in reliable and secure way)

It there reliable method of "wrapping" system calls under Linux ? (Like LD_PRELOAD for wrapping shared library function calls.) Is there reliable, secure method of "wrapping" system calls (and, maybe ...
8
votes
4answers
418 views

Possible Rogue Admin

This does not involve me directly. However a friend believes her files are being tampered with and/or deleted by the only Windows domain admin there. (She has since kept backups) This started after ...
5
votes
3answers
400 views

Should we store meeting minutes on an iPad?

Being employed in the infosec field I would like to set a good example. However I also do not believe in sweating the small stuff and would like to maximize my productivity. My current workplace, ...
7
votes
1answer
496 views

Inconsistencies found in OpenID Provider's HTTP Headers. Which one is the most secure that I should imitate in my STS, and Relying Party?

I'm comparing the HTTP headers of the various providers (LiveID, Google, Yahoo, etc) and notice a broad inconsistency in implementation on the sign in page, sign out page, and subsequent pages. ...
30
votes
3answers
31k views

How difficult to crack keepass master password?

How easily could someone crack my keepass .kdbx file if that person steals the file but never obtains the Master Password? Is this a serious threat, or would a brute force attack require massive ...
5
votes
1answer
5k views

Bypassing a captive portal with tor

I know that NSXTS and Iodine can be used to bypass a captive portal by taking advantage of permissive DNS firewall rules. What I have found recently is that simply by using Tor, I can also bypass a ...
1
vote
3answers
514 views

Preventing 3rd party DNS Servers from being used

While using a wireless network recently that implemented a captive gateway, I noticed that any third party DNS servers manually set would not allow the network to connect properly. This would seem ...
8
votes
2answers
1k views

How to defend against SSL-Exhaustion attacks?

The problem of SSL-Exhaustion attacks is well known for years, but nobody really cared until THC released their exploit-tool recently. THC talks about counter measurements in their release: No real ...
6
votes
3answers
485 views

How far can we go in preventing videos from spreading out using P2P networks like BitTorrent?

Everyday, I see many of my friends downloading movies off P2P networks like BitTorrent. Isn't there any way for those hardworking movie producers to save their work from being distributed like this? ...
6
votes
2answers
5k views

Is it possible to speed up WPA/WPA2-PSK cracking using a rogue AP?

We know that WPA/WPA2-PSK uses a PTK (Pairwise Transient Key) for each client to encrypt the communication. This PTK is generated through the process known as 4-way handshake. As told in the related ...
7
votes
3answers
939 views

How should a web page respond to a CSRF attack?

I know that you use tokens to prevent CSRF, but how should the receiving page respond when it is attacked? Should it fail silently, pretending the transaction was successful? Display an error message? ...
7
votes
4answers
168 views

Is having theoretical access to PHI a HIPAA breach, even if no one accesses it?

This is an entirely hypothetical question. Lets say a clinic has a computer in their waiting room for checking email, surfing the web etc. while patients wait. Lets also assume whoever signed this up ...
12
votes
6answers
992 views

Securely building a local pentest lab in a VM

I'd like to set up OWASP WebGoat or a similar vulnerable web app in a VM (probably VirtualBox on Linux). For convenience's sake, I'd like to get it running on one of the primary machines I use (say, a ...
8
votes
5answers
2k views

How to catch a gmail hacker/money-scammer? (in conversation with one right now!)

My friend's GMail account was recently hacked and the perpetrator sent out one of those classic "help I was mugged, I need money" style e-mails. (Edit: I know it's legit; my friend called me to tell ...
9
votes
3answers
233 views

Is there any conceivable reason to prevent a password change in an authentication system?

I connect to the VPN of another company with a company-specific username and password (they aren't giving everyone the same password to every company to access it or anything ridiculous like that.) ...
4
votes
5answers
328 views

What would you define as an “advanced” hacker attempt?

This subject might just barely be a programming topic. Though, in my point of view, it is of great concern to programmers because of our responsibility to develop secure code. Recently, there has ...
6
votes
2answers
2k views

Tools to scan for PII

I'm looking for well known tools that will scan for any PII within a network. For example, I would like to be able to use a plug and play method, meaning I drive to a client, plug my laptop in, and ...
2
votes
4answers
99 views

Securely signing a container package

I have a desktop application that uses a kind of package format to load a blob and do something with it. To ensure the authenticity of the blob, I would like to add a digital signature. I researched ...
1
vote
2answers
741 views

Are Google Chrome Extensions vulnerable?

I've just discovered this: You can create IFRAME pointing to "chrome-extension://" protocol You can access IFRAME content with jQuery Does this mean, I'm able to use badly written Chrome ...
10
votes
3answers
826 views

Is it “standard” to SMS passwords?

When I get credentials for a new machine, my company will often send the login id in email, then SMS (or sometimes Skype msg) the password. This is obviously in order to separate the login and ...
3
votes
6answers
2k views

Decent programmer looking to learn to Hack

I'm a decent programmer, fluent in several languages. Python, Ruby, JavaScript, Haskell, and Scheme are my favorites. I'm currently adding Perl to the mix. I haven't done much "low-level" ...
7
votes
5answers
574 views

Which graphic image formats contain revision history? Does the image editing software being used matter?

It's common knowledge among graphic designers that they can rename a PDF file and import it into Illustrator and access the "layers" within the document, revealing hidden information. I don't know ...
3
votes
4answers
471 views

What Gmail features should be Opted-Out to prevent PII from being indexed?

The Massachusetts and Nevada PII laws require all email with SSNs or other personally identifying information to be encrypted (TLS or otherwise). Of the free email providers, GMail does support TLS ...
15
votes
5answers
4k views

Preventing information disclosure from browser back button/history?

I have sensitive data that will be hosted on a website, and I would like to prevent the data from being exposed in this scenario: The primary user logs off the application, but does not close the ...
3
votes
3answers
840 views

Best password storage scheme for high entropy, unique passwords which is failure resistant [closed]

What is the best, most secure, easiest way to: store unique, strong passwords for every service which requires authentication make the system resistant (total loss of security is avoided, breaches ...
2
votes
1answer
725 views

Social Engineer Toolkit (Cloning Sites)

Is it legal or illegal to use the cloning site option within the social engineer toolkit (SET) or any other tool that clones websites? I was under the impression that if performing a social engineer ...
15
votes
3answers
18k views

Expired SSL Certificate Implications

What are the security implications of an expired SSL certificate? For example if an SSL certificate from a trusted CA has expired will the communication channel continue to remain secure?
5
votes
1answer
1k views

Implications of using DNS Forwarders instead of Root Hints

When redesigning an organizations DNS infrastructure, the question of using Forwarders instead of Root Hints comes up. What kinds of issues should I be aware of when the admins and designers start ...
1
vote
2answers
183 views

Password system, possible solutions

I am trying to solve a problem with a password system. I need to figure out the probability of the password being guessed. If I have an 8-character alphanumeric password. it cannot be all #'s, ...
6
votes
3answers
3k views

Generate a PGP key with more than 4096 bits?

I would like to know if generating a PGP key with a number of bits higher than 4096 is possible and if so how?
5
votes
5answers
1k views

Is there a reason to disable root login, if SSH connections are restricted to a single IPv4 address?

I have a linux server running centos, and while hardending the SSH server, I asked myself: Is there a reason to disable root login, when only I (assuming my IP address is static, and i have direct ...
15
votes
3answers
995 views

Is hacking legal when a friend allows you to attempt to hack their system?

So I've begun learning to penetration test and I want to try it on a real system, (apart from my own), and so I have asked a friend if I can hack their computer. He is as interested as I am on the ...
5
votes
1answer
205 views

What is the status of forced HTTPS everywhere (Strict transport security) via DNS? I only see last years draft

I'm trying to find the most recent RFC on HSTS in DNS (or rather said DNSSEC), but can only find this year old one in expired draft status Where can I find the most current guidance on STS in DNS? If ...
18
votes
7answers
1k views

In Healthcare IT, is a “break glass” mode to bypass access controls commonly required?

I've seen referenced in literature the need to have a "break glass" mode in Healthcare IT applications. In this mode, the access controls in an application can be bypassed for an emergency when it is ...
4
votes
3answers
259 views

Are SSL certificates from a CA necessary for secure communication?

Am I right in thinking that SSL certificates from a CA are purely for identification purposes and serve no purpose in the actual encryption of data? In other words if I were to create a self signed ...
5
votes
1answer
2k views

Protect access to an SD card

How can I protect access to an SD card, so that only authorized users can read or modify the content of the SD card. Currently everybody who has physical access to the SD card can read or modify ...
1
vote
1answer
147 views

Does an exposed XMLRPC API in a web application pose a threat?

I'm given the assignment of testing one of our web-servers in regards to security. One of the servers run IIS 7 and its application relies extensively on XMLRPC calls. I found the API for those calls ...
12
votes
3answers
3k views

What file formats are known to be unsafe?

I recently found out pdf's can contain viruses, and from the impression I got its more than a buffer overflow error (I heard it may visit urls automatically but the person sounded unsure) What are ...
18
votes
1answer
10k views

What key exchange mechanism should be used in TLS?

There are many key exchange mechanisms that can be used in TLS. Among them are RSA, ECDH_ECDSA, ECDHE_ECDSA, ECDH_RSA, ECDHE_RSA and others. Which of these are more cryptographically secure and can be ...
3
votes
1answer
1k views

Are Windows password hashes salted with the user name?

I'll readily admit I'm pretty clueless when it comes to cryptography, so there may already be some false assumptions in the question title itself :-) Still, I "heard" that it is more secure to store ...
9
votes
2answers
504 views

Security of unencrypted wireless networks with authentication page

Some wireless networks, such as those offered by hotels and hotspots, are not encrypted (they don't require a pass phrase to connect) but have an authentication web page. For example, you connect to ...
3
votes
1answer
193 views

How to get informed in metasploit when a user does a reverse shell to my computer

I sometimes do reverse shells on metasploit but I'm not sure when my target will actually execute the payload. I would like an alarm of some sort to tell me when he does. this can easily be done in a ...
1
vote
2answers
238 views

Is the OData Protocol susceptible to Insecure Direct Object References?

The Open Data Protocol or OData is a great protocol created on top of Web Technologies.It uses the URI convention for the data exchange using Atom, JSON and XML. You can use the URI convention ...
4
votes
2answers
212 views

What are the consequences for deceptive practices against stated privacy policy

Disclaimer: I'm aware my question is a bit far from IT security practices but here is the most appropriate place I can think of to post my question within the whole stackexchange. Let's say, many ...
13
votes
5answers
808 views

Is it legal to log passwords from failed logins?

Is it legal to store/log mistyped passwords? How many of you have seen this happen in a log file or DB?
7
votes
3answers
353 views

Secure cleaning of deleted files

So I know how to secure delete files. But at our company, we have a laptop which had many important documents, which now have been deleted, but not in a secure way. We can't perform a full format of ...
5
votes
1answer
721 views

I'm having a DDoS attack, my hosting company is stupid, and I need to know what is hapening

So ok, right now my windows 2003 dedicated server is under attack by some guy who's flooding UDP packets (~90.000 packets/sec) on my 100Mbps server for the last 8 hours. I'm on a shared port, so I'm ...
1
vote
3answers
605 views

Java vulnerability applicability

On a server running Java, can a JRE vulnerability be exploited even in cases where the named subcomponent is not used by the application? See CVE-2011-3545, for which the vulnerable subcomponent is ...
10
votes
5answers
10k views

How secure is NTFS encryption?

How secure is the data in a encrypted NTFS folder on Windows (XP, 7)? (The encryption option under file|folder -> properties -> advanced -> encrypt.) If the user uses a decent password, can this ...

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