Summary
When typing partial passwords but not pressing return for a long time, a password timeout can occur. When this happens, the keys pressed are replayed onto the console.
Example
Using sudo-rs:
geiger@cerberus:~$ sudo -s
[sudo: authenticate] Password: sudo-rs: timed out
geiger@cerberus:~$ testtesttest
"testtesttest" was entered at the password prompt but not confirmed by pressing return and then waiting for the timeout.
Impact
This could reveal partial password information, possibly into history files when not carefully handled by the user and on screen, usable for Social Engineering or Pass-By attacks.
Versions affected
Passwords timeouts were added in sudo-rs 0.2.7 (with a default set to 5 minutes).
Credits
This issue was discovered and reported by @DevLaTron.
DevLaTron Reporter
bjorn3 Remediation developer
MggMuggins Remediation reviewer
squell Coordinator
Summary
When typing partial passwords but not pressing return for a long time, a password timeout can occur. When this happens, the keys pressed are replayed onto the console.
Example
Using sudo-rs:
"testtesttest" was entered at the password prompt but not confirmed by pressing return and then waiting for the timeout.
Impact
This could reveal partial password information, possibly into history files when not carefully handled by the user and on screen, usable for Social Engineering or Pass-By attacks.
Versions affected
Passwords timeouts were added in sudo-rs 0.2.7 (with a default set to 5 minutes).
Credits
This issue was discovered and reported by @DevLaTron.