Bug 322 – Redirecting sudo password to sudo command is not working

Bug 322 - Redirecting sudo password to sudo command is not working


Summary:	Redirecting sudo password to sudo command is not working

Status:	RESOLVED INVALID

Product:	Sudo
Classification:	Unclassified
Component:	Sudo
Version:	1.7.0
Hardware:	PC Linux

Importance:	low normal
Assigned To:	Todd C. Miller

URL:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2008-12-13 02:02 MST by Mariam
Modified:	2008-12-13 07:29 MST (History)
CC List:	0 users

See Also:

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Description Mariam 2008-12-13 02:02:26 MST

Using echo command to redirect sudo password to sudo command is not working. Specifically, doing the following e.g is not working:

$(echo $password)|sudo touch /opt/try.txt

The sudo command is not responding to the redirection; just waiting for the input from the user regardless of the redirection.

The application should accept the redirection and create the file.

The bug is encountered under:
Sudo version 1.6.9p10 on OS linux ubuntu 2.6.24-19-generic

Comment 1 Todd C. Miller 2008-12-13 07:29:20 MST

sudo has to read the password directly from the tty device in order to be able to disable echo.  If you want to pass it in via standard input you need to use sudo's -S flag.