Unanswered Questions

4,314 questions with no upvoted or accepted answers
13
votes
0answers
3k views

DMA attacks despite IOMMU isolation

If you're already familiar with PCI behavior and Linux's handling of DMA buffers, skip to the third section for my actual question. Otherwise read on for a small summary of how PCI devices perform ...
11
votes
2answers
637 views

Fully transparent proxy

By default mitmproxy will use its own local IP address for its server-side connections. What I want instead is mitmproxy to use the client’s IP address for server-side connections. The following ...
9
votes
1answer
2k views

Openid connect nonce replay attack

The openid connect specification adds a nonce parameter to the authorize endpoint, which must be echoed back as a claim in the id_token. It claims that the purpose of this parameter is to prevent ...
9
votes
1answer
399 views

Pin required for accessing (smartcard) Card Authentication Slot

So let me set the stage: I have created an Intermediate Signing Certificate by way of the Yubico walkthrough: https://developers.yubico.com/PIV/Guides/Certificate_authority.html I made a couple ...
9
votes
4answers
6k views

SQL Injection Escaping Challenge Security Shepherd

I am using Security Shepherd as a training tool and I am now in challenge SQL Injection Escaping Challenge. The challenge is as it can be seen below: When I makae a query just like the one above (...
9
votes
2answers
3k views

importing OpenVAS xml in metasploit

I am practising in my lab with some metasploitable machines, and I just realised that the vulns declared by OpenVAS 6.01 in the scan report aren’t imported in Metasploit 4.11.5 by the db_import report-...
8
votes
2answers
249 views

Security implications of download attribute

The download attribute in an a element tells the browser to force the download of a file that otherwise would be interpreted by the browser. This is very convenient, since often users want to download ...
8
votes
2answers
2k views

dnsspoof not spoofing (requests and forwards real DNS packet)

I was trying to use dnsspoof but it did not work as expected. These are the steps I followed: Set IP forward in kernel to 1 arpspoof -i eth0 -t 192.168.1.39 -r 192.168.1.1 and arpspoof -i eth0 -t 192....
8
votes
0answers
387 views

Is there any merit to the RFC 3414 (SNMPv3 User Security Model) password-to-key method?

RFC 3414 (published 2002) specifies a method of generating keys based on password in its Appendix, which essentially takes any "passphrase", and keeps on repeating it until there is a 1MB string, at ...
7
votes
0answers
510 views

Separating “function” from “scope” in RBAC

I'm trying to formulate an RBAC permission model which allows separation between permissions and the scopes on which those permissions are applied. I have been unable to find a standard model which ...
7
votes
1answer
356 views

What exactly is encrypted by “full disk encryption” on Android 5?

This page says "user data" gets encrypted. But that implies it's only a certain part of the full disk? Like "/data" or something? Can I copy a file from a PC to the internal storage to any place and ...
7
votes
0answers
315 views

Can SRP be implemented using libsodium

I am using libsodium for cryptography and I want to use SRP for key exchange. The wikipedia page lists a python example, but I am not sure if and how I could convert this to libsodium function calls. ...
7
votes
3answers
7k views

What is a AUTH-KEY in the security of the computers?

I'm studying security in computers and in particular the URL Spoofing. I understand that a form of URL spoofing is phishing. Then I read that a countermeasure against phishing is the authentication ...
7
votes
2answers
1k views

What unique fingerprinting information can an iOS 10 app collect?

As a follow-on to these questions: What unique fingerprinting information can an iOS7 app collect? What unique device fingerprinting information can an iOS8 app collect? What unique device ...
6
votes
0answers
710 views

TCP Sack panic proof of concept?

For the vulnerability called TCP SACK panic([1], [2], [3], and many more): is there a proof of concept code out there that can be used to test vulnerability status and effectiveness of remedies? [1] ...

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