Sudo 1.8.25p - pwfeedback Buffer Overflow (PoC)

Sudo 1.8.25p - pwfeedback Buffer Overflow PoC Title: Sudo 1.8.25p - Buffer Overflow Date: 2020-01-30 Author: Joe Vennix Software: Sudo Versions: Sudo versions prior to 1.8.26 CVE: CVE-2019-18634 Reference: https://www.sudo.ws/alerts/pwfeedback.html Sudo's pwfeedback option can be used to provide...

CVE-2019-18634

A flaw was found in the Sudo application when the ’pwfeedback' option is set to true on the sudoers file. An authenticated user can use this vulnerability to trigger a stack-based buffer overflow under certain conditions even without Sudo privileges. The buffer overflow may allow an attacker to...

CVE-2019-18634

In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist on...