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Bug 1803116

Summary:	oscap-ssh fails to retrieve the result files when --sudo is used
Product:	Red Hat Enterprise Linux 8	Reporter:	Renaud Métrich <rmetrich>
Component:	openscap	Assignee:	Jan Černý <jcerny>
Status:	CLOSED ERRATA	QA Contact:	Matus Marhefka <mmarhefk>
Severity:	medium	Docs Contact:	Jan Fiala <jafiala>
Priority:	medium
Version:	8.1	CC:	jafiala, jcerny, lmanasko, mhaicman, mmarhefk
Target Milestone:	rc	Flags:	pm-rhel: mirror+
Target Release:	8.0
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	openscap-1.3.2-7.el8	Doc Type:	Bug Fix
Doc Text:	.The `oscap-ssh` utility now works correctly when scanning a remote system with --sudo When performing a Security Content Automation Protocol (SCAP) scan of a remote system using the `oscap-ssh` tool with the `--sudo` option, the `oscap` tool on the remote system saves scan result files and report files into a temporary directory as the `root` user. Previously, if the `umask` settings on the remote machine were changed, `oscap-ssh` might have been prevented access to these files. This update fixes the issue, and as a result, `oscap` saves the files as the target user, and `oscap-ssh` accesses the files normally.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-04 02:29:43 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:

Description Renaud Métrich 2020-02-14 14:14:11 UTC

This bug was initially created as a copy of Bug #1803114

I am copying this bug because: 

Also applies

Description of problem:

Depending on the umask configuration of the target system, "sudo oscap"
may create the result files in temporary directory with 600 permissions,
which makes retrieving the log (as the regular user that ssh'ed to the
system) impossible:

$ oscap-ssh --sudo user@system 22 xccdf eval ...
[...]
oscap exit code: 0
Copying back requested files...
scp: /tmp/tmp.0kfbPWEy6u/report.html: Permission denied
Failed to copy the HTML report back to local machine!


Version-Release number of selected component (if applicable):

All openscap packages, including Upstream


How reproducible:

Always


Steps to Reproduce:
1. Set a default umask in /etc/sudoers:

Defaults	umask = 0077

2. Run oscap-ssh

$ oscap-ssh --sudo rmetrich@vm-rhel7 22 xccdf eval --rule xccdf_org.ssgproject.content_rule_ensure_gpgcheck_globally_activated --profile xccdf_org.ssgproject.content_profile_pci-dss --report report.html /usr/share/xml/scap/ssg/content/ssg-rhel7-ds.xml

Actual results:

Failure to retrieve the result

Expected results:

Result being retrieved.

Additional info:

Issue applies Upstream. See PR https://github.com/OpenSCAP/openscap/pull/1481

Comment 1 Jan Černý 2020-02-20 09:21:28 UTC

Fixed upstream in https://github.com/OpenSCAP/openscap/pull/1485/files

Comment 15 Jan Fiala 2020-07-27 07:32:33 UTC

Thanks Matus. I checked the doc text and now it looks good to me.

Comment 19 errata-xmlrpc 2020-11-04 02:29:43 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 (openscap bug fix and enhancement update), 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-2020:4623