Bug 865

Summary:	Default log_output breaks who am i command output
Product:	Sudo	Reporter:	Martin Hulka <martin.hulka>
Component:	Sudo	Assignee:	Todd C. Miller <Todd.Miller>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	low
Version:	1.8.26
Hardware:	IBM
OS:	AIX

Description Martin Hulka 2019-01-02 05:21:34 MST

Not exactly sure when it got broken but here is the version where it still works as expected compared to the latest one:

$ sudo -V
Sudo version 1.8.3p2
Sudoers policy plugin version 1.8.3p2
Sudoers file grammar version 40
Sudoers I/O plugin version 1.8.3p2
$ sudo su -
[root@xxxxx:/home/root:] who am i
mhulka      pts/2       Jan  2 12:25     (xxx.xxx.xxx.xxx) 
[root@xxxxx:/home/root:] 


$ sudo -V
Sudo version 1.8.26
Sudoers policy plugin version 1.8.26
Sudoers file grammar version 46
Sudoers I/O plugin version 1.8.26
$ sudo su -
Password: 
[root@xxxxx:/home/root:] who am i
root      pts/2 
[root@xxxxx:/home/root:]


respective configuration part from /etc/sudoers:
Defaults log_output
Defaults!/usr/bin/sudoreplay !log_output
Defaults!/etc/reboot !log_output
Defaults!/usr/sbin/reboot !log_output
Defaults!/etc/shutdown !log_output
Defaults!/usr/sbin/shutdown !log_output


if I remove this part from /etc/sudoers everything works as expected however we do not have data for sudoreplay which we would like to have.

Comment 1 Martin Hulka 2019-01-02 05:30:47 MST

checked other versions and it still works in 
1.8.18p1
however is already broken in 
1.8.22
do not have other versions at the moment to test.

Comment 2 Todd C. Miller 2019-01-02 07:02:23 MST

Thanks for narrowing that down, I'll take a look at what has broken the utmp file handling.

Comment 3 Todd C. Miller 2019-01-02 07:40:19 MST

This is fixed by the following commit:
https://www.sudo.ws/repos/sudo/rev/cf81f3fa1f3a

Comment 4 Todd C. Miller 2019-01-12 10:03:35 MST

Fixed in sudo 1.8.27, out now.