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Bug 1483888

Summary:	sudoers lens fails to parse match_group_by_gid option
Product:	Red Hat Enterprise Linux 7	Reporter:	Vinay Mishra <vmishra>
Component:	augeas	Assignee:	Pino Toscano <ptoscano>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.4	CC:	cdonnell, cww, jherrman, ltoscano, mryodatak, mtessun, pasik, pgrist, rjones, tenobreg, xchen, yoguo
Target Milestone:	rc	Keywords:	Regression, Triaged, ZStream
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	augeas-1.4.0-3.el7	Doc Type:	Bug Fix
Doc Text:	Prior to this update, Augeas was not able to read the default /etc/sudoers file provided by more recent versions of the sudo utility. The sudoers lens of Augeas has been fixed to parse also the match_group_by_gid option. As a result, Augeas now reads default /etc/sudoers as expected.	Story Points:	---
Clone Of:
Clones:	1493005 (view as bug list)		Environment:
Last Closed:	2018-04-10 09:55:26 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1493005

Description Vinay Mishra 2017-08-22 08:36:54 UTC

Description of problem:

augeas is no longer parse the /etc/sudoers file.

The problem is that the newer version of sudo adds the following line to /etc/sudoers:

Defaults    match_group_by_gid

Version-Release number of selected component (if applicable):
RHEL7.4
sudo-1.8.19p2-10.el7.x86_64

How reproducible:
Update to sudo package to sudo-1.8.19p2-10.el7.x86_64

And install the augeas package:
---
# yum install augeas
---

run below command:
---
# echo "print /files/etc/sudoers" | augtool
---

Actual results:
# echo "print /files/etc/sudoers" | augtool

no output in it

Expected results:
-------
# echo "print /files/etc/sudoers" | augtool
/files/etc/sudoers
/files/etc/sudoers/#comment[1] = "# Sudoers allows particular users to run various commands as"
/files/etc/sudoers/#comment[2] = "# the root user, without needing the root password."
/files/etc/sudoers/#comment[3] = "#"
/files/etc/sudoers/#comment[4] = "# Examples are provided at the bottom of the file for collections"
/files/etc/sudoers/#comment[5] = "# of related commands, which can then be delegated out to particular"
/files/etc/sudoers/#comment[6] = "# users or groups."
/files/etc/sudoers/#comment[7] = "#"
/files/etc/sudoers/#comment[8] = "# This file must be edited with the 'visudo' command."
/files/etc/sudoers/#comment[9] = "# Host Aliases"
/files/etc/sudoers/#comment[10] = "# Groups of machines. You may prefer to use hostnames (perhaps using"
/files/etc/sudoers/#comment[11] = "# wildcards for entire domains) or IP addresses instead."
/files/etc/sudoers/#comment[12] = "Host_Alias     FILESERVERS = fs1, fs2"
/files/etc/sudoers/#comment[13] = "Host_Alias     MAILSERVERS = smtp, smtp2"
/files/etc/sudoers/#comment[14] = "# User Aliases"
...
...
-------
augeas should parse the /etc/sudoers file.


Additional info:

Comment 3 Pino Toscano 2017-08-24 14:15:15 UTC

*** Bug 1484557 has been marked as a duplicate of this bug. ***

Comment 4 Pino Toscano 2017-08-24 14:16:22 UTC

*** Bug 1484886 has been marked as a duplicate of this bug. ***

Comment 6 Pino Toscano 2017-08-24 14:44:08 UTC

Let's give this bug a better summary, so it's easier to search.

Comment 7 YongkuiGuo 2017-08-25 08:29:32 UTC

Reproduced it with the package of sudo-1.8.19p2-10.el7.x86_64.

Steps:
1. On rhel7.4 host
#augtool -e "print /files/etc/sudoers"

There is no output. augeas cannot parse the /etc/sudoers file.

Comment 13 mryodatak 2017-09-19 14:26:16 UTC

Any way to test the augeas-1.4.0-3.el7 ? i can't find it on epel ? I start a issue here #1493174

Comment 14 Richard W.M. Jones 2017-09-19 14:32:13 UTC

I've uploaded them here:

http://oirase.annexia.org/tmp/bz1483888/

Comment 15 mryodatak 2017-09-19 15:35:22 UTC

sorry but your rpm file its in fact a html file :

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>302 Found</title>
</head><body>
<h1>Found</h1>
<p>The document has moved <a href="http://download-ipv4.eng.brq.redhat.com/brewroot/packages/augeas/1.4.0/4.el7/x86_64/augeas-1.4.0-4.el7.x86_64.rpm">here</a>.</p>
</body></html>


Thanks by advance

Comment 16 Richard W.M. Jones 2017-09-19 15:37:40 UTC

Grrr ‘brew download-build’ is broken ...

Will reupload in a few mins.

Comment 17 mryodatak 2017-09-19 16:00:13 UTC

I juste test this fix its works like a charm , when did this gonna be relase in epel repository for Centos 7 ?

Comment 18 Richard W.M. Jones 2017-09-19 16:03:34 UTC

It'll be in RHEL 7.4-z in a few weeks, and then CentOS 7.5 in a few
months.

Comment 19 YongkuiGuo 2017-09-20 03:13:52 UTC

Verified with the packages:
sudo-1.8.19p2-10.el7.x86_64
augeas-1.4.0-4.el7.x86_64


Steps:
1. On rhel7.4 host
#augtool -e "print /files/etc/sudoers"
----------------------------------------
augtool> print /files/etc/sudoers 
/files/etc/sudoers
/files/etc/sudoers/#comment[1] = "# Sudoers allows particular users to run various commands as"
/files/etc/sudoers/#comment[2] = "# the root user, without needing the root password."
/files/etc/sudoers/#comment[3] = "#"
/files/etc/sudoers/#comment[4] = "# Examples are provided at the bottom of the file for collections"
/files/etc/sudoers/#comment[5] = "# of related commands, which can then be delegated out to particular"
/files/etc/sudoers/#comment[6] = "# users or groups."
/files/etc/sudoers/#comment[7] = "#"
/files/etc/sudoers/#comment[8] = "# This file must be edited with the 'visudo' command."
/files/etc/sudoers/#comment[9] = "# Host Aliases"
/files/etc/sudoers/#comment[10] = "# Groups of machines. You may prefer to use hostnames (perhaps using"
/files/etc/sudoers/#comment[11] = "# wildcards for entire domains) or IP addresses instead."
/files/etc/sudoers/#comment[12] = "Host_Alias     FILESERVERS = fs1, fs2"
/files/etc/sudoers/#comment[13] = "Host_Alias     MAILSERVERS = smtp, smtp2"
/files/etc/sudoers/#comment[14] = "# User Aliases"
/files/etc/sudoers/#comment[15] = "# These aren't often necessary, as you can use regular groups"
/files/etc/sudoers/#comment[16] = "# (ie, from files, LDAP, NIS, etc) in this file - just use %groupname"
/files/etc/sudoers/#comment[17] = "# rather than USERALIAS"
/files/etc/sudoers/#comment[18] = "User_Alias ADMINS = jsmith, mikem"
/files/etc/sudoers/#comment[19] = "# Command Aliases"
/files/etc/sudoers/#comment[20] = "# These are groups of related commands..."
/files/etc/sudoers/#comment[21] = "# Networking"
/files/etc/sudoers/#comment[22] = "Cmnd_Alias NETWORKING = /sbin/route, /sbin/ifconfig, /bin/ping, /sbin/dhclient, /usr/bin/net, /sbin/iptables, /usr/bin/rfcomm, /usr/bin/wvdial, /sbin/iwconfig, /sbin/mii-tool"
/files/etc/sudoers/#comment[23] = "# Installation and management of software"
/files/etc/sudoers/#comment[24] = "Cmnd_Alias SOFTWARE = /bin/rpm, /usr/bin/up2date, /usr/bin/yum"
/files/etc/sudoers/#comment[25] = "# Services"
/files/etc/sudoers/#comment[26] = "Cmnd_Alias SERVICES = /sbin/service, /sbin/chkconfig, /usr/bin/systemctl start, /usr/bin/systemctl stop, /usr/bin/systemctl reload, /usr/bin/systemctl restart, /usr/bin/systemctl status, /usr/bin/systemctl enable, /usr/bin/systemctl disable"
/files/etc/sudoers/#comment[27] = "# Updating the locate database"
/files/etc/sudoers/#comment[28] = "Cmnd_Alias LOCATE = /usr/bin/updatedb"
/files/etc/sudoers/#comment[29] = "# Storage"
/files/etc/sudoers/#comment[30] = "Cmnd_Alias STORAGE = /sbin/fdisk, /sbin/sfdisk, /sbin/parted, /sbin/partprobe, /bin/mount, /bin/umount"
/files/etc/sudoers/#comment[31] = "# Delegating permissions"
/files/etc/sudoers/#comment[32] = "Cmnd_Alias DELEGATING = /usr/sbin/visudo, /bin/chown, /bin/chmod, /bin/chgrp"
/files/etc/sudoers/#comment[33] = "# Processes"
/files/etc/sudoers/#comment[34] = "Cmnd_Alias PROCESSES = /bin/nice, /bin/kill, /usr/bin/kill, /usr/bin/killall"
/files/etc/sudoers/#comment[35] = "# Drivers"
/files/etc/sudoers/#comment[36] = "Cmnd_Alias DRIVERS = /sbin/modprobe"
/files/etc/sudoers/#comment[37] = "Defaults specification"
/files/etc/sudoers/#comment[38] = "Refuse to run if unable to disable echo on the tty."
/files/etc/sudoers/Defaults[1]
/files/etc/sudoers/Defaults[1]/visiblepw
/files/etc/sudoers/Defaults[1]/visiblepw/negate
/files/etc/sudoers/#comment[39] = "Preserving HOME has security implications since many programs"
/files/etc/sudoers/#comment[40] = "use it when searching for configuration files. Note that HOME"
/files/etc/sudoers/#comment[41] = "is already set when the the env_reset option is enabled, so"
/files/etc/sudoers/#comment[42] = "this option is only effective for configurations where either"
/files/etc/sudoers/#comment[43] = "env_reset is disabled or HOME is present in the env_keep list."
/files/etc/sudoers/Defaults[2]
/files/etc/sudoers/Defaults[2]/always_set_home
/files/etc/sudoers/Defaults[3]
/files/etc/sudoers/Defaults[3]/match_group_by_gid
...
...

----------------------------------------
Sudoers lens can parse match_group_by_gid option normally. Verified it.

Comment 22 errata-xmlrpc 2018-04-10 09:55:26 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0684