17
votes
1answer
3k views

Is mosh now recommended by the security experts? (2014)

Mosh has been around for a while now. Although it's claimed to be "a replacement for SSH" by its authors, mosh does actually depend on ssh to do the initial authentication, after which an instance of ...
2
votes
2answers
731 views

Bypass cookie validation

I have discovered that a web application allows the setting of certain cookie values through request parameters. Each request param results in a separate Set-Cookie header. i.e. a request like this: ...
0
votes
2answers
586 views

Is it possible to modify a support .js file in a web application by injection?

Let's say there is a web application needing a JavaScript support file .js to be loaded in the head of the html document. <!DOCTYPE html> <html> <head> <meta ...
0
votes
1answer
56 views

In a 3 tier (or more) PKI, is it permissible that a Name Constraint only be defined on the middle tier?

I'm working with an Issuing CA that doesn't support name constraints that are defined at a higher level. Assuming that it issues certificates that are compliant with the Name Constraints that are ...
3
votes
4answers
374 views

Risk management with software code analysis

I am a programmer by day and I am working on a project that is focused around risk management based on PCI-DSS controls within an organisation. I have been thinking lately that a lot of PCI-DSS ...
0
votes
1answer
175 views

Is there a way of determining if tor is running on a remote machine?

In most of the companies, IT guys block some sites and by using TOR or other VPNs people walk around these blocks and gain access to blocked content. My question is, assuming TOR is running on ...
1
vote
1answer
45 views

Is there a place where we can see which Microsoft's KB replaces which Microsoft's KB?

Do you If there is a simple listing of which KB replaces which KB in Microsoft development because every report from Microsoft explain one by one which KB replaces which KB, but I can't find a place ...
1
vote
0answers
2k views

Ping Of Death reconstruction against a Windows 95 virtual machine

For the sake of demonstration, I'm trying to perform a Ping Of Death sent from a Kali Linux virtual machine to a Windows 95 virtual machine (vmware) on a private network. I've set both vms correctly, ...
0
votes
1answer
321 views

Preventing body onload xss that is injected as a request parameter

I have a rails 4.0.1 app that allows locale as a request parameter. Here is what i saw when i tested my app on firefox; ...
1
vote
0answers
121 views

Rainbow Tables: Why do we need to store the last value of a chain?

Surely we could just make it so a rainbow table says for each beginning of chain do 10k iterations, and then we wouldn't have to store both values? Or does by doing it this way stop collisions?
-5
votes
1answer
163 views

Is it possible to hack my encrypted session and hijack the session by electromagnetic waves? [closed]

I'm concerned about microwave technologies nowadays and suspicious matter happend. So, I have several questions. Could you tell me about my question in below if you know. Question: Is it possible ...
0
votes
1answer
204 views

How to modify a certificate using getTBSCertificate() method

I want to show that if I modify one bit or byte from a given X509 certificate the signature verification results false (because this modification results different hash value from the certificate). ...
3
votes
2answers
93 views

Cetificate Pinning. How do we handle the situation where a website is visited for the first time?

What I essentially mean to ask is, how is the scenario where a user who visits a website for the first time (the certificate for the website is not pinned in the browser) handled ? Additionally how is ...
1
vote
3answers
3k views

NGINX Hacking Attempt

Every time I start my test-server and let it run for some days I get this in my log-files (in different variations): 111.241.26.165 - - [18/Feb/2014:22:16:45 +0100] "\x04\x01\x00\x19\xCBER!\x00" 400 ...
4
votes
1answer
21k views

Forgot password to 7-Zip archive

I think I already know the answer to this question, but I thought I'd ask the experts anyway. A few months back, I created a password-protected 7-Zip archive which housed the source code of a simple ...
6
votes
5answers
2k views

What are the steps to take in order to securely transmit credit card information via a standard web form?

I have a client who wants to be able to have new customers who sign up with them online for a delivery service to be able to submit their credit card information as well. Once the information is ...
1
vote
1answer
952 views

How do vlans improve security? [closed]

From my understanding vlans create separate networks. If that is the case can you simply add routes manually and access those other networks? Basically, I've always been under the impression that ...
0
votes
1answer
665 views

Is it safe to accept the security certificate from AOL chat? [closed]

Is it safe to accept the security certificate from AOL chat? Did they recently change their certificates? These images are from Pidgin.
1
vote
0answers
512 views

Proxy via pfSense and exclusions for DNS

I have posted this to NetworkEngineering.SE, as that seems the more suitable audience for this question. I will leave this question open here but am happy to see it closed. I just did not want to ...
1
vote
1answer
346 views

why credentials are not shown in mitmproxy?

my question is that why I can not see some credentials in mitmproxy while the application connecting to, uses ssl connection? I actually installed the mitmproxy server on my PC and have set up my ...
0
votes
0answers
26 views

How can it be possible to have encrypted communication between a server and a client if the server has only a public key [duplicate]

If only the server has an electronic certificate (User ID, Version, Public key), how can be possible the encrypted communication between the client and the server?
0
votes
2answers
93 views

Is it possible to sabotage google bots? [closed]

Consider the following theoretical webserver: On any request, produce an html response that consists of 2 links, which are each randomly chosen strings followed by ".html". When the google bot ...
1
vote
1answer
3k views

Trying to reproduce a file upload compromise on Joomla

After telling my workmates and boss that we had a very critical lack of security controls, finally we got compromised! They had a Joomla 1.5 which was exploited using a file upload vulnerability. WSO ...
3
votes
3answers
258 views

The best way to change my pgp key

I would like to change my pgp key because I have the same one 2 years ago. But, I want to warn my freinds that the owner of the old key and the owner of the new one is the same person (me). hwat is ...
0
votes
1answer
263 views

Server Encryption - Best practice [closed]

Q: For servers running Windows 2008 and up, what would be the most reliable whole disk encryption? We want to protect our data from unauthorized access. Right now, we used BitLocker. However, the ...
1
vote
3answers
230 views

Gmail, Google, and privacy

I am not sure whether this is the best place to get my concerns addressed, but I hope it is. I went through some earlier questions posted on this site about Gmail and privacy but they don't seem to ...
2
votes
1answer
683 views

Legality of downloading leaked hashes / attempt cracking [closed]

Note: I realize there is no legally binding talk hereinafter. There are lots of leaked password hashes on the internet. Twitter searches for "hash dump" pull back tons of links, generally from "deep ...
6
votes
3answers
2k views

First steps in preventing DOS attacks

My server is currently being attacked from another server. This is my log: root@my-server:/var/log# tail -f auth.log Feb 19 11:53:08 my-server sshd[3745]: Disconnecting: Too many authentication ...
3
votes
2answers
476 views

E-mail already in use exploit

I have a registration portal where user inputs his details and then a valid email account. Currently I check the email is not used already and if it is I reply with the classic: "email already in ...
1
vote
1answer
691 views

Why are PSTN lines not encrypted?

While reading this article: Does Skype use encryption? I came to know that PSTN do not have encryption. Why it is like that? More so since we have our PSTN phones now more powerful (in terms of ...
0
votes
1answer
233 views

Is it possible to insert data into UUID?

Is it possible to insert arbitrary data into UUID? Let's suppose we have an MD5\SHA hash of something... can we encode that data into a valid UUID?
1
vote
1answer
678 views

Retrieve RAR Password through Extracted File

So I was wondering about something, but for the simplicity, consider this example: You have a file with n encrypted files in it, of which one is called 'Note.txt' You also happen to have another ...
1
vote
2answers
7k views

Why is my browsing history visible outside my network?

Whatever I and my family members do at 'Home PC' is visible in the history in Google chrome in my 'Office PC'. The two networks are entirely different! I saw all websites visited on our home PC by my ...
0
votes
1answer
138 views

How much harm can an attacker do on the Diffie-Hellman exchange?

I'm looking at a system that uses an unprotected Diffie-Hellman exchange to negotiate a key for the session encryption. That Diffie-Hellman is not secure against man-in-the-middle attacks is textbook ...
2
votes
1answer
45 views

bin_random_table and RANDOM_BOOT_ID

The Linux kernel has a few sysctrl's related to random devices packaged in a bin_random_table (http://lxr.free-electrons.com/source/kernel/sysctl_binary.c?v=3.2): static const struct bin_table ...
5
votes
1answer
3k views

New to ossec - what does active response do out of the box

I am new to ossec. I installed the server and wui on a dedicated machine. I have agents running on my zookeeper and kafka servers to start. Below are events I am seeing. I assume the are ...
0
votes
1answer
1k views

Security of Moblie Hotspot (4G LTE, WiFi) vs. Apartment Complex Cable Internet

The overwhelming majority of my banking is done online. As such, I try to be as cautious as possible. I am moving into a new apartment in a few months which offers internet. (I am not sure whether it ...
1
vote
0answers
292 views

Disable HNAP on D-Link router [closed]

I'm concerned that Home Network Administration Protocol (HNAP) is a serious vulnerability that exposes consumer network routers to remote management by malicious entities such as government ...
1
vote
1answer
148 views

Are Internet speed tests an attack vector?

I've been performing lots of speed tests lately due to, among some other random things, an Internet programming class and getting Google Fiber hooked up. Then I realized that SpeedTest.net uses a ...
0
votes
1answer
315 views

Emails are forwarded to wrong addresses and possible hacking?

Multiple email addresses for my domain have been compromised. My client forwarded me an old email which he sent me few days ago but I haven't received that email. That email was sent to an email ...
2
votes
1answer
525 views

Setting up NAT with firewall for RDP connection

I have a vendor who needs to connect remotely to one of our servers. What I thought I would do is setup a NAT rule in our firewall. I have a public IP address that I will have translated to the local ...
1
vote
0answers
234 views

How should I authenticate my SPA frontend with my API since I´ve got no authentication process in the site?

We are designing a web site for selling financial products online. The following is a high level description of the components: Our frontend will be a SPA built with AngularJs. The frontend will ...
1
vote
1answer
2k views

Hydra gives wrong passwords

I've been trying to use hydra (educational way) but with no success. The site method is http-post but performed by ajax (should it be a problem? I think not). After execute the command I got an output ...
0
votes
1answer
110 views

Storing third party auth info; Is this secure?

I have a feature request to connect my PHP web-app to the users mail server. I have usually strayed away from this type of work as it will mean storing the users email passwords. My question: is it ...
4
votes
3answers
150 views

Do I ultimately have to hold a key in my head?

To preface, I'm not an IT security person, just a layman intrigued by the logic. I had this question while reading about Ladar Levison turning a key to his email service on paper to the government. ...
1
vote
1answer
1k views

How to diagnose No Certificate alert

I have written an application (in C#) to communicate with one of our customers via a web service. Our customer requires us to use bi-directional SSL. The customer has sent us their certificate (in ...
3
votes
3answers
836 views

Why does the RFC 5280 dictate the CAs not to issue certificates with negative serial numbers?

I have tried to issue a certificate beginning with 8 to F but I have found it is impossible, mostly due to the RFC: The serial number MUST be a positive integer assigned by the CA to each ...
1
vote
1answer
412 views

Problems with l0phtcrack

I recently wrote a website for my company and have been asked to Pen test it as well as the server. Have run SQL map and no vulnerabilities there, however I want to check if my hash and things are ...
7
votes
3answers
4k views

Why did Facebook not use HSTS for a long time after it became available?

(Note that Facebook now does use HSTS. The question was asked at a time when they didn't.) To force a browser to always go directly to HTTPS for a website (and not rely on 302 redirects from the HTTP ...
3
votes
1answer
451 views

What do Msgsrvr and Scientia-ssdb do?

I'm having a task in a computer security class in school where I'm supposed to scan a host for open ports in order to find out what services are being run there. I have found out (among other things) ...

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