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Bug 1112175

Summary: Redact secrets present in useradd statements in kickstarts in sos anaconda plugin
Product: Red Hat Enterprise Linux 7 Reporter: David Kutálek <dkutalek>
Component: sosAssignee: Bryn M. Reeves <bmr>
Status: CLOSED ERRATA QA Contact: David Kutálek <dkutalek>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0CC: agk, lmiksik
Target Milestone: rcKeywords: Patch, Upstream
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: sos-3.2-11.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-05 11:23:23 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 David Kutálek 2014-06-23 09:36:59 UTC 
Description of problem:

Kickstarts since RHEL-7 can contain user account entries with hashed passwords like this:

useradd --password 'xxx' user

Please redact it in anaconda sos plugin.


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

sos-3.0-23.el7

How reproducible:

Always

Steps to Reproduce:
1. Prepare a kickstart with line as shown above
2. run sos -o anaconda
3. 

Actual results:

hashed password present in sos tarball

Expected results:

Password not present
Additional info:
Comment 1 Bryn M. Reeves 2014-06-24 10:01:15 UTC 
commit 772a953a30c75a0f4aa4e0554ab840ea54670d33
Author: Bryn M. Reeves <bmr>
Date:   Sat Jun 21 16:45:59 2014 +0100

    [anaconda] elide passwords in kickstart user directives
    
    E.g.:
    
    useradd --password '$6$oIW3o2Mr$XbWZKaM7nA.cQqudfDJScupXOia5h1u517t6Htx/Q/MgXm82Pc/OcytatTeI4ULNWOMJzvpCigWiL4xKP9PX4.' test
    
    Signed-off-by: Bryn M. Reeves <bmr>
Comment 6 Bryn M. Reeves 2015-01-13 15:05:58 UTC 
Fixed upstream with a very slight change:

commit 5a97e0e2571b948f1f7bc602e6f190976de99eee
Author: Bryn M. Reeves <bmr>
Date:   Tue Jan 13 16:31:58 2015 +0000

    [anaconda] make useradd password regex tolerant of whitespace
    
    Signed-off-by: Bryn M. Reeves <bmr>

diff --git a/sos/plugins/anaconda.py b/sos/plugins/anaconda.py
index 08d300b..aea3300 100644
--- a/sos/plugins/anaconda.py
+++ b/sos/plugins/anaconda.py
@@ -54,7 +54,7 @@ class Anaconda(Plugin, RedHatPlugin):
         )
         self.do_file_sub(
             "/root/anaconda-ks.cfg",
-            r"(user.*--password=*)(\S*)",
+            r"(user.*--password=*\s*)\s*(\S*)",
             r"\1********"
         )
 

This passed with the following useradd directives:

# grep ^useradd /root/anaconda-ks.cfg
useradd --password='$6$oIW3o2Mr$XbWZKaM7nA.cQqudfDJScupXOia5h1u517t6Htx/Q/MgXm82Pc/OtatycTeI4ULNWOMJzvpCigWiL4xKP9PX4.' test
useradd --password=$6$oIW3o2Mr$XbWZKaM7nA.cQqudfDJScupXOia5h1u517t6Htx/Q/MgXm82Pc/OtatycTeI4ULNWOMJzvpCigWiL4xKP9PX4. test
useradd --password '$6$oIW3o2Mr$XbWZKaM7nA.cQqudfDJScupXOia5h1u517t6Htx/Q/MgXm82Pc/OtatycTeI4ULNWOMJzvpCigWiL4xKP9PX4.' test
useradd --password $6$oIW3o2Mr$XbWZKaM7nA.cQqudfDJScupXOia5h1u517t6Htx/Q/MgXm82Pc/OtatycTeI4ULNWOMJzvpCigWiL4xKP9PX4. test

# grep ^useradd sosreport-bmr-rhel7-vm1*/root/anaconda-ks.cfg 
useradd --password=******** test
useradd --password=******** test
useradd --password ******** test
useradd --password ******** test

The extra '\s*' within the first capture group means we preserve whitespace (rather than change 'password foo' into 'password***').
Comment 9 errata-xmlrpc 2015-03-05 11:23:23 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://rhn.redhat.com/errata/RHBA-2015-0532.html