mimipenguin v2.0 releases: dump the login password from the current linux user

by do son · Published July 9, 2018 · Updated October 22, 2019

mimipenguin

A tool to dump the login password from the current Linux desktop user. Adapted from the idea behind the popular Windows tool mimikatz. This was assigned CVE-2018-20781 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20781). Fun fact it’s still not fixed after GNOME Keyring 3.27.2 and still works as of 3.28.0.2-1ubuntu1.18.04.1.

Details

Takes advantage of cleartext credentials in memory by dumping the process and extracting lines that have a high probability of containing cleartext passwords. Will attempt to calculate each word’s probability by checking hashes in /etc/shadow, hashes in memory, and regex searches. 2.0 introduces a clean C port that aims to increase the speed of execution and portability

Requires

root permissions

Supported

Kali 4.3.0 (rolling) x64 (gdm3)
Ubuntu Desktop 12.04 LTS x64 (Gnome Keyring 3.18.3-0ubuntu2)
Ubuntu Desktop 14.04.1 LTS x64 (Gnome Keyring 3.10.1-1ubuntu4.3, LightDM 1.10.6-0ubuntu1)
Ubuntu Desktop 16.04 LTS x64 (Gnome Keyring 3.18.3-0ubuntu2)
Ubuntu Desktop 16.04.4 LTS x64 (Gnome Keyring 3.18.3-0ubuntu2, LightDM 1.18.3-0ubuntu1.1)
Ubuntu 18
Xubuntu Desktop 16.04 x64 (Gnome Keyring 3.18.3-0ubuntu2)
Archlinux x64 Gnome 3 (Gnome Keyring 3.20)
OpenSUSE Leap 42.2 x64 (Gnome Keyring 3.20)
VSFTPd 3.0.3-8+b1 (Active FTP client connections)
Apache2 2.4.25-3 (Active/Old HTTP BASIC AUTH Sessions) [Gcore dependency]
openssh-server 1:7.3p1-1 (Active SSH connections – sudo usage)