3
votes
0answers
26 views

How to mitigate risk of X11 buffer ghosting on window resize and X server shutdown

The Buffer "Ghosting" Phenomenon It is possible to observe contents of (old and currently used) graphics buffers on a monitor under certain circumstances, posing an information disclosure risk, when ...
0
votes
1answer
42 views

X509 / SSL certificates in practise

After learning the theory behind cryptography I'm having quite some problems understanding how SSL or X509 certificates works in practise and I simply cannot find useful information in the internet. ...
2
votes
2answers
114 views

How do I know that malware on the client computer does not modify data transmitted to my webapp?

I am working on a web application and have had an idea of a new feature I would like to add. The feature includes getting data from the user on their open system and receiving it on my server. For the ...
1
vote
0answers
18 views

Is it safe to use DOMParser to parse client side XML files

Some javascript frameworks or libraries use the DOMParser API to parse XML files from the client. Is it safe to do this. Malicious code can easily be embedded into the XML file (in either the ...
0
votes
2answers
88 views

Is encrypting a CRC with the plaintext ok?

We're using encrypt-then-mac for authenticated encryption, and recently added a CRC32 to the plaintext. Are there any security problems with using a non-authenticated hash mechanism (for example, ...
0
votes
0answers
5 views

Contents of Users\Default folder in Windows [migrated]

Can you help me with two things: On a Windows machine, what does the folder named 'Default' (Found under Users\Default) contain? I have a slight idea that it serves as a template for different user ...
3
votes
1answer
124 views

Browser exploits based purely on HTML + CSS

In 2011, Eli Fox-Epstein demonstrated a Rule 110 machine in HTML + CSS3. This led some to say that the combination of HTML + CSS3 is Turing complete. Regardless of whether HTML + CSS3 is technically ...
0
votes
0answers
24 views

How to create meterpreter session with multi/handler for WAN without LPORT, over VPN?

Actually, my router's WAN IP address is private so i cannot port forward. Is there any way to create metasploit's meterpreter session without specifying LPORT using VPN (i have hotspot shield ) or ...
0
votes
0answers
24 views

Linux server just as RAMdisk [migrated]

I want to setup an anti-forensic Linux server to protect my users. My aim is to have the Linux distro and everything inside of it running from RAM, never storing anything permanently. It is possible ...
0
votes
1answer
85 views

Is Qt framework is under attack or it has something suspicious (only in free version)

I was trying to download Qt framework. I went to its Official site (I'm sure, I checked in Wikipedia) for Visual Studio. But when attempting to download Qt for Windows, my Firefox shows this message: ...
5
votes
0answers
59 views

Is rowhammer comparable to faults caused by radiation?

As far as I know, both rowhammer and radiation based fault injection, can cause arbitrary bit flips in the memory. Are there any differences in matters of possible outcomes of both "attacks" on ...
4
votes
1answer
77 views

How to prevent directory traversal when joining paths in node.js?

I have a node.js webapp in which I need to concatenate two paths in a safe way. The first one (leftmost) is a constant, and the second one (rightmost) is relative to the first one and comes from ...
72
votes
8answers
17k views

How is 'Removing RAM' a security risk?

Today I was watching a video on 'Ethical Hacking' where, while discussing hardware attacks, the narrator said: Removing RAM or components from a desktop or a laptop Here's a screenshot: I ...
3
votes
1answer
58 views

Is there value in slowing down retries on a fingerprint lock?

My phone has a fingerprint lock and it sometimes fails to identify my fingerprint (for example, if it wasn't positioned correctly). If I fail fingerprint identification 5 times in a row, I'm locked ...
3
votes
1answer
81 views

Hidden service security SSH

Pretend I have a Tor hidden service. For ultimate security I would firewall the internet entirely, except for Tor, to try to reduce IP address leakage and other security risks. My problem is how ...
1
vote
1answer
102 views

How to implement iterations when hashing passwords?

To securely hash passwords, algorithms such as PBKDF2 do many iterations of a common hash such as SHA1. Are there certain ways that these iterations need to be done to be safe? In particular, from ...
43
votes
7answers
8k views

Is suggesting a correct url in a 404 page bad practice?

I'm currently writing a web application, and my client asked me if it would be possible to suggest a valid URL to the user when they accidentally write a typo in the URL bar, an example of this would ...
-2
votes
0answers
45 views

Does anybody knows a good dataset for malware families? [closed]

Does anybody knows a good dataset for malware families? What i need is a dataset where malware are already classified in families.
-3
votes
0answers
54 views

How to reconcile IN data and GL data in a telecommunication billing system? [closed]

I am involved in a system audit project on a telecom billing system, and my client wants to clarify the revenue data stored in the system is accurate and up to date. So, I am thinking to kick off the ...
0
votes
0answers
41 views

Framework to authenticate web API requests from legacy application

I have a legacy ASP.NET MVC application that uses pretty standard forms authentication which validates logins against an application database. The scope to change this application is limited, however ...
-4
votes
2answers
116 views

Java security risk? [closed]

Why is this code considered dangerous or vulnerable? String sFileName = request.getParameter("fName"); if (sFileName.toLowerCase().endsWith(".pdf")) // open file else // don’t open the file
0
votes
1answer
105 views

How secure is FaceTime by Apple

Apple says their messages and FaceTime calls are end-to-end encrypted and nobody can access them. As I'm unfamiliar with cryptology, I've found security white paper from Apple, where says: ...
3
votes
2answers
81 views

What are the best practices for trusting connection sources in open source software?

Quite concise, but I'll elaborate with an example: Lets say I have a simple app written in C# and i want to know how many people a day open the app. the easiest solution would be to simply have a ...
1
vote
1answer
37 views

SQLi with comment filter: dumping the database

The following SQLi (MySQL) filter is from SQLi-Labs: ... $reg = "/#/" $reg1 ="/--/" $replace ="" $id=preg_replace($reg,$replace,$id); $id=preg_replace($reg1,$replace,$id); .... $sql = "SELECT ...
0
votes
0answers
25 views

Kernel-based integrity measurement of an operating system startup in RAM

This idea is based on the Integrity Measurement Architecture and the usage of a trusted platform module to ensure the integrity of boot procedures. Let's say we have a kernel designed for an embedded ...
-4
votes
0answers
51 views

How does server process validates the credentials supplied by client in basic authentication [closed]

I am clear at high level what is happening in basic authentication. the portion what I am missing is, soon after server process receives windows account credentials from client, how does it validate ...
0
votes
0answers
36 views

I don't recognize the format of this CMS blob

I generated a CMS blob with the following OS X command: security cms -E -i <file> -r <identifier> The blob I got out of it has the following DER structure (data bytes omitted): ...
47
votes
4answers
9k views

Isn't OS X's Single-User Mode a bad idea?

Recently, I had a Mac which fried its video logic board. Luckily, Apple had concluded that this was a design flaw and was fixing the affected models for free (see more here). However, I did not find ...
1
vote
1answer
56 views

Making an encrypted SMS app (Android) [closed]

From my limited googling I've noticed that a lot of the mainstream encrypted messaging apps all are either (or a combination of!) closed-source, run through an uncontrolled third-party server, use a ...
0
votes
1answer
33 views

Protecting third-party credentials in a web database in light of weak passwords

I need to store third party credentials in a database for a web application. The third party supports OAUTH and I plan on getting a long-lived token to allow my app to access the third party, but I ...
1
vote
1answer
66 views

How do I scan for and discover active IPv6 addresses of devices behind a router?

Usually with IPv4 and NAT you can only access a device behind a router if the router is port-forwarded correctly or is the router's DMZ. When behind the router you can easily scan for the IPs behind ...
-2
votes
0answers
89 views

How to break a 32 bit block cipher without key? [migrated]

From what I know Skip32 is the only 32 bit block cipher and I heard its not secure. What do I do or which tool do I use to break a 32-bit block cipher? I did search for this but all I find is attacks ...
-1
votes
0answers
6 views

kill process by its own description [migrated]

I need help for killing putty.exe by searching process for it's description even if the user change the name and the class name ( win title ) for the putty.exe if process description on process list ...
1
vote
1answer
64 views

How is github 2FA personal access token more secure than passphrase?

I recently enabled 2-factor authentication (2FA) on my github account. Once you enable 2FA, you can no longer connect to the repo using your normal passphrase using command line tools. You have to ...
1
vote
1answer
74 views

XSS works when I save generated HTML to file, but not directly in browser

The hints of XSS game's level2 say that Entering a tag on this level will not work. Try an element with a JavaScript attribute instead. When entering <script>alert(1)</script> ...
0
votes
0answers
16 views

Vulnerabilities archive [closed]

I am looking for a software to archive a history of network vulnerabilities. I already use Nessus scanner and I need to somehow archive its results. Is somebody knows some tools like that? Thank you
0
votes
0answers
35 views

Is the QUIC protocol secure?

QUIC is a new protocol for video streaming, that can establish a secure connection in one round. It is used in Google's new Duo app for example. How does it work and is it secure (comparison with TCP ...
5
votes
1answer
68 views

Preventing Server-Side Request Forgeries in Java

The application lets users specify a URL for their profile picture. It fetches the data from the URL and saves it on the server. However, the app is vulnerable to server-side request forgery (SSRF) - ...
0
votes
0answers
40 views

What's is a security vulnerability that lets you inject server-side code called?

What is the name for a security vulnerability, that lets you inject server-side code into one of their server-sides pages (say PHP or ASPX)? I have googled 'Code Injection' though I'm not sure this is ...
0
votes
0answers
21 views

Renewal of ssl client certificate on iOS app

I'm a bit confused on how ssl renewal would work on an iOS app. I've gotten a LetsEncrypt certificate for my domain name to secure data transfer between my iOS app and my web server. In the ...
0
votes
1answer
31 views

What is LinkedIn's “email challenges” feature?

A LinkedIn blog post about the recent password dump says: We take the safety and security of our members' accounts seriously. For several years, we have hashed and salted every password in our ...
-1
votes
1answer
48 views

Svg width element XSS

I'm working on a svg image generator. Now I want to set the user width and height value. Can a user exploit this element tags? And what should I do to make this secure? <?php $user_input = ...
1
vote
0answers
56 views

Does CAN bus communication need encryption?

I'm currently researching into CAN security for in-vehicle communication. I would like to know if anyone knows a reason why the CAN payloads of an ECU communication (between CAN nodes) should be ...
0
votes
1answer
37 views

Is it secure to get auth TOKEN from server with javascript?

Is it secure to manipulate with auth token inside client side javascript over https ? I want to pass that token to websocket after login. $.getJSON( $SCRIPT_ROOT + '/jscript_get_auth_token', {}, ...
13
votes
2answers
3k views

How does Internet Explorer know what text files I have viewed?

I am using Windows 8.1 and Internet Explorer 11. Each time I use File Explorer to view a .txt file the history of Internet Explorer shows that I viewed that file in pages visited on this PC. ...
0
votes
0answers
41 views

Passwordlist generation, permutations and long passwords

I was wondering what could be a way of generating a list where the passwords were like: CorrectHorseBatteryStaple BanjoTurtleNinjaHobo PizzaSurfMotherMetal etc... I already fiddled a little with ...
-4
votes
0answers
58 views

Zip file password cracker script not working [closed]

I wrote a simple python script to bruteforce a zip file password using a dictionary file: import zipfile from threading import Thread def extractFile(zfile,password): try: ...
0
votes
1answer
61 views

Authentication scheme security: unique link and birth date

Recently I had to make an appointment at a hospital. I got an email with a link with a token in the form of a GUID. This brought me to a page where I had to enter my birth date to see the details. ...
0
votes
0answers
20 views

ostinato as replacement for fiddler

Can ostinato be used like fiddler? Fiddler acts as a proxy for recorded traffic and all responses on Wireshark appear to be coming from a local IP where fiddler is hosted. I have a use case where the ...
1
vote
1answer
123 views

Wireshark SSL stripping

well this question could be asked in Wireshark forums or Stackoverflow forums but, I think the question invloves development and security factors as well so i find the Information Security forum is ...

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