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Unanswered Questions

6,878 questions with no upvoted or accepted answers
12 votes
0 answers
564 views

PGP security with Thunderbird 78 email client

I have a query regarding best practice of using PGP to sign emails with Thunderbird 78. Thunderbird 78 took an existing system by Enigmail and brought it "in-house" to be built into the ...
11 votes
1 answer
611 views

SolarWinds Orion SAML compromise mass cert update

SolarWinds Orion customers have suffered some network compromises according to news reports. One report says, right at the end of the article, that SAML2.0 signing certificates may have been ...
11 votes
0 answers
419 views

Penetration-resistance of a HaLVM unikernel

A HaLVM unikernel is a Haskell program compiled with a modified version of the Glasgow Haskell Compiler to produce a standalone Xen kernel, which will boot on any Xen PV machine instance. A HaLVM ...
11 votes
1 answer
4k views

Do fTPM implementations protect against physical attacks?

I see that there is an increasing number of PCs shipped with firmware based TPM (fTPM), e.g. the Intel NUC. As far as I understand, these solutions practically emulate a TPM chip using the CPUs ...
10 votes
1 answer
2k views

What is the difference between TEE and HSM in Android Pie?

Android has the concept of hardware backed security as TEE and in latest Android i.e., Android Pie devices can have a HSM (Strongbox). What is the actual difference between TEE and HSM? Does ...
10 votes
0 answers
954 views

How does Facebook Pixel's new first-party cookie work?

Facebook recently announced that they will begin offering a first-party cookie option for the Facebook Pixel. Previously, they only used third-party cookies. From their documentation: You can now use ...
9 votes
0 answers
1k views

How could I block or at least detect the use of ultrasonic side channels or Google Nearby Messages API on my smartphone?

My question is about the use of ultrasonic messages that are part of the modern advertising ecosystem and are also used by the Google Nearby Messages API. When it comes to advertising, the type of ...
9 votes
0 answers
430 views

Authentication using SysRq

The general idea here is the feasibility of adding Windows UAC-like "consent prompts" to a Linux system, designed in such a way that cannot be bypassed in software. Giving consent should ...
9 votes
1 answer
4k views

Session fixation in Java

In the process of developing a vulnerable jsp/servlet based application I made an attempt to introduce the session fixation vulnerability. Referring to the documentation I came up with the following ...
8 votes
0 answers
288 views

Why is iOS sending HTTPS requests even with background refresh disabled?

I've installed NextDNS on my iPhone and started noticing random connection requests to *.aliexpress.com, live.musical.ly, amazon.sa, and others. What made me wonder is that I don't have "...
8 votes
0 answers
6k views

Running openssl s_client with an aes encrypted key fails

I'm trying to verify a 2-way SSL connection using the openssl s_client command openssl s_client -connect localhost:8883 -CAfile ca.pem -cert client.crt -key client.key The openssl s_client fails ...
8 votes
1 answer
6k views

Are there any security benefits to enabling the PIN on an eSIM?

For physical SIMs, I'm aware of a number of security benefits to enabling the SIM PIN, because for an attacker with access to a lost or stolen SIM, a PIN prevents transferring the SIM to a different ...
7 votes
0 answers
365 views

Whats the meaning of ] symbol in a SQL query?

I have come across a CTF challenge that has a part with an SQL injection (MySQL DB). I have completed it, but I do not know why or how the injection works. The query in the PHP application would ...
7 votes
0 answers
3k views

Can XXE be exploited when disallow-doctype-decl is set to true (Apache)?

I found out that an endpoint of a website may be vulnerable to XXE. It is using Unmarshal as an XML parser. When I try to send a post request using common XXE payloads, I receive the following ...
7 votes
1 answer
2k views

Powershell Empire - Token Impersonation

I have been struggling trying to get token impersonation to work in Empire 2.0. I use the credentials/mimitokens module to list and elevate to use a specific users token - I see mimikatz' output ...

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