Unanswered Questions
6,212 questions with no upvoted or accepted answers
15
votes
2answers
2k 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 ...
13
votes
0answers
2k views
TPM PCR value unchanged with BIOS configuration changes
I have been experimenting with the TPM on a Dell R710 (BIOS version 6.3.0). My goal was to detect changes to BIOS settings through TPM PCRs. The research I have done leads me to believe that BIOS ...
9
votes
0answers
338 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 ...
9
votes
0answers
246 views
PGP security with Thunderbird 78 email client
I have a query regarding best practise 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 ...
9
votes
0answers
2k views
Using the authorization code grant without using cookies?
I've been reading up on this for months and it seems like the whole thing could converge on what I'm summarizing below. I'm trying to arrive at the most ideal:
OAuth2
OpenID Connect
SPA / Mobile ...
9
votes
2answers
260 views
SAML 2.0 Multiple AuthnStatements
If I interpret the SAML 2.0-protocol correctly you can have multiple AuthnStatements. What is the purpose of this? I cannot see a use case of having multiple AuthnStatements really.
8
votes
1answer
1k 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] ...
8
votes
0answers
541 views
Entropy sources used by modern Windows
A comment on a Microsoft blog from 2005 mentions over 150 sources of entropy for the Windows CryptGenRandom function. The majority of sources come from low-level system information (precise stat ...
8
votes
1answer
4k views
Meterpreter (Metasploit) anonymous reverse connection over Tor2web
The general consensus seems to be that one sets up a listener on a server accessible by a public IP and some port forwarding. For anonymity this should be a throw-away server or a hacked box.
I've ...
8
votes
0answers
295 views
How to determine the number of characters changed between two passwords as per DISA Application Developer STIG rule SV-84187r1_rule?
The DISA Application Developer STIG specifies:
Group ID (Vulid): V-69565
Rule ID: SV-84187r1_rule
Rule Version (STIG-ID): APSC-DV-001730
Rule Title: The application must require the change of at ...
8
votes
0answers
275 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 ...
8
votes
1answer
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 ...
7
votes
0answers
164 views
What exactly is CVE-2021-23978 (from MSFA2021-08 in Mozilla Firefox)?
A number of vulnerabilities were fixed in Firefox that was fixed in the latest version. MSFA2021-08 describes it only as "memory issues that may be exploitable", and doesn't give any ...
7
votes
0answers
777 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 ...
7
votes
0answers
233 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 ...