Unanswered Questions

34
votes
0answers
815 views

WPA2 ephemeral key derivation

I'm trying to learn how ephemeral keys in WPA2 4-way handshake are derived. Starting from 4 EAPOL packets sniffing, I successfully derived PMK and PTK reading ANonce, SNonce, and knowing ASCII-PSK ...
32
votes
4answers
2k views

What attacks, if any, are possible against Security Support Provider Interface (SSPI)?

I've been looking at SSPI recently, as it is used for authentication in a variety of Microsoft products. From the looks of it, it's based on GSSAPI and provides an abstraction for wrapping various ...
12
votes
1answer
1k views

MPPE-Send and Receive key derivation from MS-CHAPv2

I am trying to get the MS-MPPE-Send-key and MS-MPPE-Recv-key from the MS-CHAPv2 challenge material. I am able to follow the RFCs 2548 3078 and 3079 to the step of getting the GetNewKeyFromSHA() it is ...
11
votes
0answers
443 views

Naive implementation of Rainbow Table and/or Hellman's trade-off

This question is the same one I asked here. Since I haven't got any response or even a comment I will post it here as well. Is there any naive implementation of Hellman's cryptanalytic time memory ...
10
votes
1answer
166 views

Using certificates to secure

I'm working on an application that comprises of a C# WebAPI (on Azure Websites) and a native mobile app. Essentially, a client creates a series of messages using a Web interface and these can be ...
9
votes
0answers
136 views

Are keyboard hooks inherently malicious?

My software is using low-level keyboard and mouse Win32 hooks for legitimate reasons (if it's any relevant, it's for determining a change in the caret position of the active code pane in the VBA IDE). ...
9
votes
1answer
1k views

iPhone 5/6 RAM security

I'm interested in how the RAM can be exploited in iPhone 5+, iOS 8+. I've previously discussed general iPhone encryption and from the response it reads: There are many exploits over the years ...
9
votes
0answers
361 views

What unique device fingerprinting information can an iOS8 app collect?

As a follow-on to this question: What unique fingerprinting information can an iOS7 app collect? What remaining device fingerprinting privacy / security vulnerabilities still exist as of iOS 8? Can ...
8
votes
0answers
70 views

What LDAP schema is recommended for PKI?

In my research, I found some RFCs that have not been updated in over a decade, e.g draft-ietf-pkix-ldap-crl-schema-01. I also explored several public directories used in PKI (e.g. x500.bund.de) and ...
8
votes
0answers
401 views

CERT FOE Fuzzing Framework documentation

So I read another post here about fuzzing local standalone applications. I have understood how to exploit basic buffer overflow vulnerabilities in standalone applications and am now looking on how to ...
7
votes
2answers
224 views

How to compile java_atomicreferencearray (CVE-2012-0507) exploit to run calc.exe on system?

I got interested in java exploits and stumbled upon this: https://github.com/redcreen/exploits/tree/master/CVE-2012-0507/redcreen It is source code for Java exploit, so even though my knowledge of ...
7
votes
0answers
287 views

Heap Buffer Overflow - AddressSanitizer output - what is needed to exploit this condition?

This is the AddressSanitizer output, for different input I get READ and WRITE errors. From Heap Buffer Overflow perspective which are more interesting? I want to execute my shellcode. Can somebody ...
7
votes
1answer
119 views

using cat to overcome 'Stack smash detected'

I'm trying now buffer overflow exercise from the site http://pwnable.kr I found the string that should be entered to the gets frunction but got "Stack Smash Detected" then I found a solution in ...
7
votes
2answers
223 views

How to securely store and manage one-time backup codes for 2FA?

I am already using 31 services with 2nd factor authentication and the number is growing. In addition to having multiple authentication devices, I decided for or had to generate a separate set of ...
7
votes
1answer
6k views

Why does IE11 refuse to enable back navigation caching for HTTPS?

On my website, I get this error message in the console: DOM7011: The code on this page disabled back and forward caching. For more information, see: http://go.microsoft.com/fwlink/?LinkID=291337 ...

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