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Eloy

@zer1t0@defcon.social
mastodon 4.7.3
  • Open on defcon.social
0 Followers
0 Following
7 Posts
Joined December 01, 2022
Web:
https://eloypgz.org/
Email:
zer1t0ps@protonmail.com
Open post
Eloy @zer1t0@defcon.social
· 25mo ago

I was playing with code injection to read processes keyrings on Linux. I've wrote a new tool, keydump, and showing how we can use it to extract cleartext credentials from sssd. Not an easy exploitable scenario, but I hope you like the article!!

https://hackliza.gal/en/posts/keydump/

Keyrings dump with keydump: Extracting SSSD cleartext credentials
Hackliza

Keyrings dump with keydump: Extracting SSSD cleartext credentials

Hi there!! Time ago I was tinkered with Linux keyrings to extract Kerberos tickets from keys with tickey, and recently I was involved in a new interesting project in which I needed to learn again about this topic, so I will try to describe the important points here in case my future self or anyone else want to learn them. First we need to know is that Linux keyrings is a key management facility.

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Open post
Eloy @zer1t0@defcon.social
· 30mo ago

Recently I've working with Azure from Linux with Azure cli, but I found it limited for some hacking operations, so I started to develop several utilities to improve it.

My favorite is az-login-with-token, that allows to directly inject an Access and Refresh Token in the token cache, and working with them from Azure Cli.

$ az ad signed-in-user show
Please run 'az login' to setup account.
$ az-login-with-token -a eyJ0eXAiOiJKV1...
$ az ad signed-in-user show
{
"@odata.context": "https://graph.microsoft.com/v1.0/...

https://gitlab.com/Zer1t0/aze

graph.microsoft.com
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Open post
Eloy @zer1t0@defcon.social
· 30mo ago

Shellnova: A template for generating advances Linux shellcodes from c code that resolves libc functions dynamically. Inspired from Windows Stardust of @C5pider@infosec.exchange .

https://gitlab.com/Zer1t0/shellnova

Zer1t0 / shellnova · GitLab
GitLab

Zer1t0 / shellnova · GitLab

Advanced shellcodes for Linux

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Open post
Eloy @zer1t0@defcon.social
· 31mo ago

Hoxe alégrame presentar un novo post en hackliza sobre como podemos evitar que sudo nos pida un contrasinal "roubandollo" a outra sesión do mesmo usuario https://hackliza.gal/posts/stealing_sudo_sessions_with_ptrace/

Roubando sesións de sudo con ptrace
Hackliza

Roubando sesións de sudo con ptrace

Boas xentiña. Hoxe traiovos unha vella técnica ca que estiven fuchicando estes días. Trátase dun ataque para obter sudo se outra persoa que estea conectada na mesma máquina ca mesma usuaria ca nos o ten desbloqueado. Esta técnica xa foi documentada por nongiach no seu repo sudo_inject. Sen embargo, na súa implementación requirense varios ficheiros e dependencias para o ataque, polo que para simplificalo, e tamén aprender sobre esta técnica, desenvolvín a ferramenta sudohunt.

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Open post
Eloy @zer1t0@defcon.social
· 24mo ago

@spectrumgirl@xarxa.cloud @hackliza@defcon.social Se se coce algo avisaremos, por suposto! Mais a ver quen se atreve a meterse en Vigo en Decembro 😆

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Open post
Eloy @zer1t0@defcon.social
· 30mo ago
Replying to
@hacklego@defcon.social @hackliza@defcon.social Graciñas meu. Cal é a fonte da plantilla?
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Open post
Eloy @zer1t0@defcon.social
· 30mo ago
Replying to
@hackliza@defcon.social @hacklego@defcon.social A ver para cando liberas as traspas ;)
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