Bug 1793277 (CVE-2019-19355) - CVE-2019-19355 openshift/ocp-release-operator-sdk: /etc/passwd is given incorrect privileges
Summary: CVE-2019-19355 openshift/ocp-release-operator-sdk: /etc/passwd is given incor...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-19355
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1793307 1793308 1793309 1793310
Blocks: 1776664
TreeView+ depends on / blocked
 
Reported: 2020-01-21 04:12 UTC by Mark Cooper
Modified: 2021-02-16 20:44 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2020-03-11 10:31:43 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:0683 0 None None None 2020-03-11 06:25:19 UTC
Red Hat Product Errata RHSA-2020:1280 0 None None None 2020-04-08 15:44:10 UTC
Red Hat Product Errata RHSA-2020:1545 0 None None None 2020-04-22 16:04:24 UTC

Description Mark Cooper 2020-01-21 04:12:14 UTC 
It has been found that multiple containers modify the permissions of /etc/passwd to make them modifiable by users other than root. An attacker with access to the running container can exploit this to modify /etc/passwd to add a user and escalate their privileges. This CVE is specific to the openshift/ansible-operator-container.

Original bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1791534
Comment 1 Mark Cooper 2020-01-21 04:12:17 UTC 
Statement:

By default this vulnerability is not exploitable in un-privilieged containers running on OpenShift Container Platform. This is because the system call SETUID and SETGID is blocked by the default seccomp policy.
Comment 5 Mark Cooper 2020-01-22 03:15:55 UTC 
Acknowledgments:

Name: Joseph LaMagna-Reiter (SPR Inc.)
Comment 7 Mark Cooper 2020-02-28 02:28:10 UTC 
External References:

https://access.redhat.com/articles/4859371
Comment 8 errata-xmlrpc 2020-03-11 06:25:18 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.3

Via RHSA-2020:0683 https://access.redhat.com/errata/RHSA-2020:0683
Comment 9 Product Security DevOps Team 2020-03-11 10:31:43 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-19355
Comment 10 errata-xmlrpc 2020-04-08 15:44:09 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.2

Via RHSA-2020:1280 https://access.redhat.com/errata/RHSA-2020:1280
Comment 11 errata-xmlrpc 2020-04-22 16:04:22 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.1

Via RHSA-2020:1545 https://access.redhat.com/errata/RHSA-2020:1545
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