пятница, 18 июля 2014 г.

PAM_steal plugin released

Typically pentest’s attack can be presented by the following schema:
perimeter -> command execution -> privileges escalation -> ...
The next step for pentesters is to gain privileges at other machines.
For example, it can be done by stealing credentials (one of many methods).
Passwords at local machine will be hashed and it's not so good to crack it due to the time.

SSH MITM (tool: http://www.signedness.org/tools/mitm-ssh.tgz) is a good one. It should be noticed though that passwords can be shared between many services and thus is also necessary.

PAM (Pluggable Authentification Module) provide dynamic authorization for applications and services in a Linux system. Our password logger plugin for PAM can be found here: https://github.com/ONsec-Lab/scripts/tree/master/pam_steal

This is a good point after rooting machines during penetration tests.

Install process:
vim /etc/pam.d/common-auth
add "auth required pam_steal.so" into it
Then check /tmp/.steal.log - all FTP/SSH and other PAM-based daemon's passwords will be there!