Bug 1803116 - oscap-ssh fails to retrieve the result files when --sudo is used
Summary: oscap-ssh fails to retrieve the result files when --sudo is used
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: openscap
Version: 8.1
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: 8.0
Assignee: Jan Černý
QA Contact: Matus Marhefka
Jan Fiala
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-02-14 14:14 UTC by Renaud Métrich
Modified: 2020-11-04 02:30 UTC (History)
5 users (show)

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.
Clone Of:
Environment:
Last Closed: 2020-11-04 02:29:43 UTC
Type: Bug
Target Upstream Version:

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Links
System ID Private Priority Status Summary Last Updated
Github OpenSCAP openscap pull 1481 0 None closed Fixed oscap-ssh failing to retrieve the result files when executing with --sudo 2020-12-18 14:41:44 UTC
Red Hat Knowledge Base (Solution) 4831831 0 None None None 2020-02-17 08:08:01 UTC
Red Hat Product Errata RHBA-2020:4623 0 None None None 2020-11-04 02:29:57 UTC

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
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