Webmin / Bugs / #5442 error after update to 1.970

Ilia - 2021-01-08

Hi, Sven.

Restarting Webmin manually will solve this:

/etc/webmin/restart
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Sven Zauber - 2021-01-08

Hi Ilia
Thanks for fast reply. :-)

Same problem after restart webmin.

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Sven Zauber - 2021-01-08

this is in the file index.cgi
!/usr/bin/perl
Authentic Theme (https://github.com**/authentic-theme/authentic-theme)
Copyright Ilia Rostovtsev
Licensed under MIT (https://github.com/authentic-theme/authentic-theme/blob/master/LICENSE)
use strict;do("@{[miniserv::getenv('theme_root')]}/authentic-lib.pl");
authentic();

line 12 says authentic();

Last edit: Ilia 2021-01-08

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Ilia - 2021-01-08

Does the pid changes when you restart Webmin?

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Ilia - 2021-01-08

Can you try running/etc/webmin/restart explicitly?

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Sven Zauber - 2021-01-08

root@U-Server:/home/sroot# ps -ef | grep miniserv
root 19022 1 0 14:15 ? 00:00:00 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf
root 19374 6265 0 14:17 pts/0 00:00:00 grep --color=auto miniserv
root@U-Server:/home/sroot# /etc/webmin/restart
Stopping Webmin server in /usr/share/webmin
Starting Webmin server in /usr/share/webmin
root@U-Server:/home/sroot# ps -ef | grep miniserv
root 19481 1 0 14:17 ? 00:00:00 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf
root 19530 6265 0 14:17 pts/0 00:00:00 grep --color=auto miniserv
root@U-Server:/home/sroot#

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Ilia - 2021-01-08

And what is the output of :

cat /usr/share/webmin/miniserv.pl |grep -B 1 -A 6 getenv
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Ilia - 2021-01-08

What OS is that?

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Ilia - 2021-01-08

If you open and edit /usr/share/webmin/authentic-theme/index.cgi adding die($ENV{'THEME_ROOT'}); before do .., and refresh the page - what is the output?

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Carlo Glinetzki - 2021-01-08

I have exactly the same problem, I'm running ubuntu 18.04
when I run:
cat /usr/share/webmin/miniserv.pl |grep -B 1 -A 6 getenv

sub getenv
{
my ($key) = @_;
return $ENV{ uc($key) } || $ENV{ lc($key) };
}

But I see also when i do sysctl status webmin:
webmin.service - LSB: web-based administration interface for Unix systems
Loaded: loaded (/etc/init.d/webmin; generated)
Active: active (exited) since Fri 2021-01-08 19:37:17 +07; 2min 46s ago
Docs: man:systemd-sysv-generator(8)
Process: 8635 ExecStop=/etc/init.d/webmin stop (code=exited, status=0/SUCCESS)
Process: 8679 ExecStart=/etc/init.d/webmin start (code=exited, status=0/SUCCESS)

Jan 08 19:37:14 my-nas systemd[1]: Starting LSB: web-based administration interface for Unix systems...
Jan 08 19:37:14 my-nas perl[8680]: pam_unix(webmin:auth): authentication failure; logname= uid=0 euid=0 tty=
Jan 08 19:37:17 my-nas webmin[8680]: Webmin starting
Jan 08 19:37:17 my-nas systemd[1]: Started LSB: web-based administration interface for Unix systems.

As you can see there is an authentication failure, may this be the source of the problem?

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Ilia - 2021-01-08

But I see also when i do sysctl status webmin:

I don't think so.

Try restarting Webmin using /etc/webmin/restart command.

Could you guys also please try this and share output of die() command?

I cannot reproduce it on any of my servers.

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Carlo Glinetzki - 2021-01-08

I tried the change and get this error on the webpage:
Error - Perl execution failed

/usr/share/webmin/gray-theme at /usr/share/webmin/authentic-theme/index.cgi line 10.

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Ilia - 2021-01-08

xD haha - what? Interesting.

Could you share your /etc/webmin/miniserv.conf and /etc/webmin/config?

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Carlo Glinetzki - 2021-01-08

/etc/webmin/miniserv.conf:
port=10000
addtype_cgi=internal/cgi
realm=Webmin Server
logfile=/var/webmin/miniserv.log
errorlog=/var/webmin/miniserv.error
pidfile=/var/webmin/miniserv.pid
logtime=168
ppath=
ssl=0
no_ssl2=1
no_ssl3=1
no_tls1=1
no_tls1_1=1
ssl_honorcipherorder=1
no_sslcompression=1
env_WEBMIN_CONFIG=/etc/webmin
env_WEBMIN_VAR=/var/webmin
atboot=1
logout=/etc/webmin/logout-flag
listen=10000
denyfile=.pl$
log=1
blockhost_failures=5
blockhost_time=60
syslog=1
session=1
premodules=WebminCore
userfile=/etc/webmin/miniserv.users
keyfile=/etc/webmin/miniserv.pem
passwd_file=/etc/shadow
passwd_uindex=0
passwd_pindex=1
passwd_cindex=2
passwd_mindex=4
passwd_mode=0
preroot=gray-theme
passdelay=1
cipher_list_def=1
logout_script=/etc/webmin/logout.pl
failed_script=/etc/webmin/failed.pl
login_script=/etc/webmin/login.pl
sudo=1
logouttimes=
preroot_root=authentic-theme
nolog=\/stats.cgi\?xhr-stats\=general
perllib=
root=/usr/share/webmin
mimetypes=/usr/share/webmin/mime.types
server=MiniServ/1.970

/etc/webmin/config:
product=webmin
syspath=
find_pid_command=ps auwwwx | grep NAME | grep -v grep | awk '{ print $2 }'
gotoone=0
passwd_pindex=1
deftab=webmin
os_version=9.0
passwd_cindex=2
gotomodule=
tempdelete_days=7
passwd_file=/etc/shadow
passwd_uindex=0
os_type=debian-linux
real_os_version=18.04.1
real_os_type=Ubuntu Linux
notabs=0
lang_root=de.UTF-8
theme=gray-theme
lang=en.UTF-8
by_view=0
passwd_mindex=4
nomoduleup=
ld_env=LD_LIBRARY_PATH
ld_path=
log=1
path=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
webprefix=
nohostname=0
referers_none=1
md5pass=1
theme_root=authentic-theme
nowebminup=

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Sven Zauber - 2021-01-08

Hi Ilia
OS is Linux Mint 19 Tara
cat commad gives that back

root@U-Server:/home/sroot# cat /usr/share/webmin/miniserv.pl |grep -B 1 -A 6 getenv

sub getenv
{
my ($key) = @_;
return $ENV{ uc($key) } || $ENV{ lc($key) };
}

Output after changing index.cgi and restart webmin

Error - Perl execution failed

/usr/share/webmin/theme-stressfree at /usr/share/webmin/authentic-theme/index.cgi line 10.

**and cat command
**
root@U-Server:/home/sroot# cat /usr/share/webmin/miniserv.pl |grep -B 1 -A 6 getenv

sub getenv
{
my ($key) = @_;
return $ENV{ uc($key) } || $ENV{ lc($key) };
}

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Ilia - 2021-01-08

ohh.. I see an issue now!

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Ilia - 2021-01-08

What is odd that having such config should also fail with previous Webmin versions.

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Justin Cannon - 2021-01-08

I am having the exact same issue after update. The following is cat /etc/webmin/miniserv.conf (I have pulled my IP out for safety)

port=10000
host=
addtype_cgi=internal/cgi
realm=Webmin Server
logfile=/var/webmin/miniserv.log
errorlog=/var/webmin/miniserv.error
pidfile=/var/webmin/miniserv.pid
logtime=168
ssl=1
ssl_redirect=1
no_ssl2=1
no_ssl3=1
no_tls1=1
no_tls1_1=1
ssl_honorcipherorder=1
no_sslcompression=1
env_WEBMIN_CONFIG=/etc/webmin
env_WEBMIN_VAR=/var/webmin
atboot=1
logout=/etc/webmin/logout-flag
listen=10000
denyfile=.pl$
log=1
blockhost_failures=5
blockhost_time=60
syslog=1
ipv6=1
session=1
premodules=WebminCore
userfile=/etc/webmin/miniserv.users
keyfile=/etc/webmin/miniserv.pem
passwd_file=/etc/shadow
passwd_uindex=0
passwd_pindex=1
passwd_cindex=2
passwd_mindex=4
passwd_mode=0
preroot=gray-theme
passdelay=1
logout_script=/etc/webmin/logout.pl
cipher_list_def=1
failed_script=/etc/webmin/failed.pl
login_script=/etc/webmin/login.pl
sudo=1
error_handler_401=
error_handler_404=
error_handler_403=
nolog=\/stats.cgi\?xhr-stats\=general
logouttimes=
preroot_root=authentic-theme
root=/usr/share/webmin
mimetypes=/usr/share/webmin/mime.types
server=MiniServ/1.970

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Ilia - 2021-01-08

I am having the exact same issue after update.

From which version you've upgraded from?

Look you have on miniserv.conf file:

preroot=gray-theme preroot_root=authentic-theme

.. what do you have set on config file for all directives starting with theme, like theme= or theme_root=?

What username do you use to login to Webmin. This issue happens for authenticated or unauthenticated users or both?
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Sven Zauber - 2021-01-08

Hi Ilia
My config looks like below. I have marked the preroot entries bold.

root@U-Server:/home/sroot# cat /etc/webmin/miniserv.conf
port=10000
addtype_cgi=internal/cgi
realm=Webmin Server
logfile=/var/webmin/miniserv.log
errorlog=/var/webmin/miniserv.error
pidfile=/var/webmin/miniserv.pid
logtime=168
ssl=1
no_ssl2=1
no_ssl3=1
no_tls1=1
no_tls1_1=1
ssl_honorcipherorder=1
no_sslcompression=1
env_WEBMIN_CONFIG=/etc/webmin
env_WEBMIN_VAR=/var/webmin
atboot=1
logout=/etc/webmin/logout-flag
listen=10000
denyfile=.pl$
log=1
blockhost_failures=5
blockhost_time=60
syslog=1
ipv6=1
session=1
premodules=WebminCore
userfile=/etc/webmin/miniserv.users
keyfile=/etc/webmin/miniserv.pem
passwd_file=/etc/shadow
passwd_uindex=0
passwd_pindex=1
passwd_cindex=2
passwd_mindex=4
passwd_mode=0
preroot=theme-stressfree
passdelay=1
login_script=/etc/webmin/login.pl
failed_script=/etc/webmin/failed.pl
cipher_list_def=1
logout_script=/etc/webmin/logout.pl
sudo=1
error_handler_403=
error_handler_401=
error_handler_404=
nolog=\/stats.cgi\?xhr-stats\=general
preroot_root=authentic-theme
logouttimes=
root=/usr/share/webmin
mimetypes=/usr/share/webmin/mime.types
server=MiniServ/1.970
root@U-Server:/home/sroot#

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Sven Zauber - 2021-01-08

and here the cat output from config file.

root@U-Server:/etc/webmin# cat config
nowebminup=
real_os_type=Debian Linux
passwd_cindex=2
lang=en.UTF-8
log=1
showhost=0
referers_none=1
path=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
ld_env=LD_LIBRARY_PATH
gotoone=0
lang_root=de.UTF-8
by_view=0
passwd_file=/etc/shadow
nomoduleup=
passwd_pindex=1
webprefix=
theme_root=authentic-theme
product=webmin
****theme=theme-stressfree
nofeedbackcc=0
help_width=
find_pid_command=ps auwwwx | grep NAME | grep -v grep | awk '{ print $2 }'
sysinfo=0
feedback_to=
os_version=10.0
passwd_mindex=4
help_height=
gotomodule=
showlogin=0
dateformat=dd/mon/yyyy
hostnamemode=0
os_type=debian-linux
deftab=webmin
md5pass=1
tempdelete_days=7
notabs=0
real_os_version=10.0
passwd_uindex=0
hostnamedisplay=
nohostname=0
root@U-Server:/etc/webmin#

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Carlo Glinetzki - 2021-01-08

So, I changed theme to authentic-theme in config, but this brings now difference, then i changed preroot to authentic-theme in miniserv.conf and that seems to work, at least the webpage loads actually normally

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Glass Feet - 2021-01-08

First 5 servers, one succeeded, 4 failed and those failed ones all see this issue:

"HTTP/1.0 500 Perl execution failed Server: MiniServ/1.970 Date: Fri, 8 Jan 2021 16:47:04 GMT Content-type: text/html; Charset=utf-8 Connection: close
Error - Perl execution failed
Undefined subroutine &WebminCore::get_raw called at /usr/share/webmin/authentic-theme/authentic.pl line 44."

I am comparing working 1.970 with bust versions of
/etc/webmin/miniserv.conf

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Carlo Glinetzki - 2021-01-08

For me everything seems to be OK, I logged out and back in, installed some updates and rebooted the server, and all works as usual.
Can I continue with this configuration, or is there something else to set differently?

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Sven Zauber - 2021-01-08

Hi Carlo
I changed the same. But without success. :-(

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error after update to 1.970

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#5442 error after update to 1.970

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