3
votes
0answers
56 views

Unknown ports shown on Nmap scan…and other strange behavior

My local network has been exhibiting some inexplicable behaviour. Firstly connecting to my websites domain name from inside the lan redirected me to my router's login page. I checked again with 3g ...
3
votes
0answers
50 views

ADFS 3.0 OAuth2.0 against client applications

ADFS 3.0 does not support the Implicit Grant client flow of Oauth2, nor does it support client secrets. Initial investigations suggest it is not secure to use the Authorize Code Grant flow from a ...
3
votes
0answers
26 views

How to check if redirected site like OAuth is genuine?

One common security advise is to open sites only from bookmarks (see also Explain to non tech savvy person how to check that your connection to mybank.com is safe? ). This approach fails if a site ...
3
votes
0answers
86 views

What is pseudo-encryption key vulnerability?

An organization in a related business was recently hacked. The hackers downloaded several GB worth of files with private information and posted it on the Internet. The news article states: “They ...
3
votes
0answers
50 views

Pros and cons of disabling TCP timestamps

So, lynis informs me that I should unset net.ipv4.tcp_timestamps. I know that's a bad thing because an attacker could figure out which updates that require restarting the machine I haven't applied, or ...
3
votes
0answers
31 views

Where could the iOS security key be stored on the hard drive, *if printed* when enabling 2 Factor?

Apple allows people to print out their recovery key when enabling two factor. Taking the assumption that the local spooler may not do a great job of protecting, secure erasing, and eliminating traces ...
3
votes
0answers
219 views

Security for Hospital IT

I'm developing a program in Java intended to be utilized in a hospital. The system uses RMI internally between workstations and the server program. The program would be installed on the hospital's ...
3
votes
0answers
23 views

LUKS key not available immediately after 'cryptsetup luksFormat'

I'm trying to create a file that will serve as a LUKS filesystem, with cryptsetup 1.6.1 under Ubuntu 14.04 LTS. This is what I'm doing: $ dd if=/dev/zero of=rfs bs=1048576 count=4 $ sudo cryptsetup ...
3
votes
0answers
268 views

How to handle media files from untrusted sources?

I've been a heavy user of ffmpeg-based players and encoders for years, and though I've heard about numerous security issues, I always assumed that staying up-to-date was safe enough. However, I just ...
3
votes
0answers
68 views

Method for securely removing files from a solid state drive

I've thought of a method for securely erasing single files on a solid state drive. This method will work only if the drive is encrypted, and it will work even if someone cracks the encryption key for ...
3
votes
0answers
33 views

Why isn't there a FROST-like cold boot exploit for iOS?

I know there's a cold boot attack for Android called FROST (Forensic Recovery Of Scrambled Phones). But there doesn't seem to be one for iOs. Why is this? Is it because iOS is inherently more ...
3
votes
0answers
243 views

Untrusted connection when logging to stack exchange sites

I was able to log into various stack exchange sites with no problem, but as of today 1/5/2016 I'm getting the following error message with firefox 43.0.2: You have asked Firefox to connect ...
3
votes
0answers
38 views

Practicing with return-2-libc exploits

I am trying to reproduce a return-to-libc for a simple vulnerable program. The tutorial is taken from https://sploitfun.wordpress.com/2015/05/08/bypassing-nx-bit-using-chained-return-to-libc/ I made ...
3
votes
0answers
27 views

Reaver stuck at flow_handler

I tried to run Reaver against my router at home using an Ubuntu 15.10 laptop. The command used was: sudo reaver -i mon0 -b XX:XX:XX:XX:XX:XX -vv -c 7 -a (the channel I got from aerodump-ng). I'm ...
3
votes
0answers
40 views

ASCII Armoring in a little endian system

With regard to the question: How does ASCII-Armoring help to prevent buffer-overflow attacks?: How the armored region prevents the attack? If the most significant byte of the return address is 0x00 ...
3
votes
0answers
24 views

Can I do an enveloping XAdES signature on binary content?

I need to sign some binary content (scanned documents) with a digital signature compliant with European norms, CAdES - XAdES. One option would be to use this library to do a XAdES signature. Is there ...
3
votes
0answers
41 views

Certificate and Path validation for S/MIME

I am working on a S/MIME client development and was wondering if there is a list of certificate and path validation checks that a client needs to perform while validating an email signature. My ...
3
votes
0answers
92 views

DVWA - Command Injection (high level)

I am attempting to educate myself further on web securities using DVWA. I am stumped on Command Injection, on the high level The help states The developer has either made a slight typo with the ...
3
votes
0answers
75 views

How is PasswordSafe different from KeePass/OtpKeyProv?

Over at Does adding two-factor authentication by OTP really make KeePass more secure the top answer unmistakably states that KeePass is not made more secure by using an OTP. I told a friend I was ...
3
votes
0answers
28 views

Security risks with iframe widget for different tools

We are building user profiles which can be embedded in client's websites. We are embedding those as iframe in client's web with user's id as parameter to iframe URL. We have authentication token to ...
3
votes
0answers
54 views

How does a Sign tool work?

My basic understanding about sign tool is: 1.It loads the zipfile(may be exe,jar,ddl,apk..) which has to be signed to its memory(cache memory of the sign tool). 2.It will verify it, and unzip the ...
3
votes
0answers
26 views

Secure IIS website from unauthorized writes

I am setting up windows EC2 server. I have created a website in that server using IIS. After creation IIS, assign them pool by default whose identity is ApplicationPoolIdentity. Website works fine. ...
3
votes
0answers
68 views

Enable FIPS 140.2 in Windows 7 (cng.sys version does not match with versions from NIST Validated list

I am currently working on an application running in Windows 7 Ultimate, and it has to be FIPS 140-2 compliance. As far as I have researched in ...
3
votes
0answers
48 views

How to group user actions within the same session?

I'm working on enterprise application where it's needed to audit all user actions (data modification, settings changing etc.) within their work session. What is the best way to group all that actions ...
3
votes
0answers
64 views

Plugin for integrating SQLMAP and BURP SUITE

I am trying to do SQL Injection using the SQLMAP Burp Plugin which I downloaded from http://code.google.com/p/gason/downloads/list. I have followed the steps for windows provided in ...
3
votes
0answers
39 views

Environment variable and scripting for return-to-libc exploit

For school we have to perform a return-to-libc exploit. Doing this, we need to spawn a shell from /bin/xh which will print a message that we succeeded with our exploit. To do this exploit, I used ...
3
votes
0answers
45 views

HIPAA/FISMA certification for IT audits

I currently work for an IT security company that is looking to expand our services offered to clients. Two avenues we are looking at is reviewing FISMA and HIPAA compliance for our clients. I have ...
3
votes
0answers
36 views

Address of environment variable different for each directory

I'm writing a return-to-libc attack for a school project. My script retrieves the system(), exit() and shell addresses as follows (it's a sh script that calls some c programs): Create the environment ...
3
votes
0answers
84 views

Clone debit or credit card

I would like to make some workshop about Debit or Credit card fraud (Skimming). So I need as much as possible information about it. Is it possible to clone debit or credit card with MagStripe reader ...
3
votes
0answers
23 views

how to create TPM_AUTHDATA as input in tpm commands ?

I'm writing my first program which use tpm (version 1.2) services in Windows 7 using TBS, in this program I'm trying to execute the TPM_CreateWrapKey command. I noticed that many commands like the ...
3
votes
0answers
59 views

Reviews of Argon2

I am not a security guy but just curious about the things here. I have seen several people in various answers here talked about the password hashing competition. Now that the winner is announced, I ...
3
votes
0answers
78 views

Is there a benefit in measuring randomness? How would it be done?

Is there any benefit in determining how random a given file, stream, signal is? I guess this would be useful to determine If something is (poorly) encrypted To verify the proper encryption of a ...
3
votes
0answers
36 views

How can one protect TPM firmware from tampering?

I know that a TPM includes ROM, nonvolatile (e.g. EEPROM), and volatile (e.g. SRAM) memories. The executable firmware is stored in ROM, such as various drivers and commands. But this time, I want to ...
3
votes
0answers
61 views

Is ECB secure if I can guarantee that I never encrypt the same block twice?

After reading about modes of operation for block ciphers, I've found that basically all discussions about ECB end with: "never use ECB". For example this security stachexchange answer. However my ...
3
votes
0answers
38 views

“Segmented” malware

I've been researching how anti-malware tools function and I feel like I'm missing something with heuristic analysis. What I've learned so far Anti-malware programs can use heuristic analysis and ...
3
votes
0answers
44 views

I accidentally commited my a gmail TokenRepsonse-user file linked to my personal Gmail to internal source control

So, I work as a QA UI-Automation developer. We've got a package linked to gmail to pull and examine emails generated from our automated tests, and that email exists as a service. Each test at the ...
3
votes
0answers
60 views

Allowing WhatsApp data through specific bundle

My mobile network provider recently released a new GPRS bundle, it consist of 50 MB per month for WhatsApp data only! First, how do they identify WhatsApp data, and more important to me, isn't that ...
3
votes
0answers
47 views

Could RSA be used as a block cipher?

I always thought that the reason we couldn't use it was because it required too many CPU cycle. But an answer from @TomLeek indicated that this was not the case : ...
3
votes
0answers
47 views

Wayland Partial Encryption for Mouse / Keyboard? (Also X and RDP)

Question What are the best practices for implementing Partial Encryption, to encrypt just the input devices (mouse/keyboard, etc), not the actual video display, during remote desktop sessions using ...
3
votes
0answers
60 views

Issues/Vulnerabilities that TPM 2.0 aims to enhance/solve comparing to TPM 1.2

I have read some documents that comparing TPM 1.2 and TPM 2.0 (e.g. more supported algorithms like SHA-2, reduced code size, or even symmetric keys seems added, etc.) I want to ask that what are the ...
3
votes
0answers
74 views

How does github.com implement CSRF mitigation

I had a look into CSRF recently. The recommended mitigation strategy is to implement the Synchronizer Token Pattern. When you look at the details, the question comes up how often these tokens need to ...
3
votes
0answers
51 views

What are some ways of protecting a VM image?

I am looking to distribute a linux VM image (with a modified linux kernel to suit or product's needs) that runs some proprietary software that will already be on the VM I distribute. The goals is to ...
3
votes
0answers
42 views

What business identifiers are considered non-public, and should not be disclosed?

I am setting up a corporation in the US and UK and am presented with a EIN for the US, and VAT Reg. Number. for the EU. Somewhere in the piles of documentation I have been reading, I read that the ...
3
votes
0answers
87 views

How far should I go in protecting a user's SMBIOS UUID?

My server will be receiving data from several hundreds of computers. As part of keeping track of which computer sent what, I will be fingerprinting the hardware and keeping the results in my database. ...
3
votes
0answers
35 views

MongoDB injection, reading and writing to files

I've been playing around with Nosql and specifically MongoDB injection on a few challenges and my lab. If you have an injection point you can easily enumerate and dump the database. But can you go ...
3
votes
0answers
113 views

What is the openssl equivalent of using java's KeyPairGenerator?

I have been using java's KeyPairGenerator in order to generate public/private keys within a program so that I can encrypt and decrypt files(also using java encrypt/decrypt methods). I want to be able ...
3
votes
0answers
37 views

What are the security implication of implementing an IVR functionality in my application?

I am planning to implement an Interactive Voice Recognition (IVR) functionality in my python-based application. I will be using IVR as a backup verification method or when a user is going to setup her ...
3
votes
0answers
196 views

ROP Programming/Exploitation on ARM - Gadget chain

Unfortunately, I cannot find this gadget in my libc.so. How can we reprogram this using different instructions: pop {r0, r1, r2, r3, pc} Which instructions will achieve the same? What gadgets I ...
3
votes
0answers
1k views

Apache vs Jetty with regard to Security

I am trying to design the architecture of an app that will run on an AWS Linux AMI, inside of a Docker container. The app will deal with sensitive financial data, so security is top priority. The app ...
3
votes
0answers
40 views

What is “half PFS” protection, and what protocols or configurations apply to it?

I'm looking for a list of scenarios and protocols that are vulnerable (or not vulnerable to) half-PFS protection. Half PFS, as I understand it, is where the communication between a client and server ...

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