Bug 1817530 (CVE-2020-10695) - CVE-2020-10695 containers/redhat-sso-7: /etc/passwd is given incorrect privileges
Summary: CVE-2020-10695 containers/redhat-sso-7: /etc/passwd is given incorrect privil...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-10695
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:
Blocks: 1776664
TreeView+ depends on / blocked
 
Reported: 2020-03-26 14:16 UTC by Paramvir jindal
Modified: 2021-05-26 15:41 UTC (History)
8 users (show)

Fixed In Version: redhat-sso 7.4.4
Doc Type: If docs needed, set a value
Doc Text:
An insecure modification flaw in the /etc/passwd file was found in the redhat-sso-7 container. An attacker with access to the container can use this flaw to modify the /etc/passwd and escalate their privileges.
Clone Of:
Environment:
Last Closed: 2020-12-15 22:18:26 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:5529 0 None None None 2020-12-15 19:32:44 UTC
Red Hat Product Errata RHSA-2020:5533 0 None None None 2020-12-15 17:14:15 UTC

Description Paramvir jindal 2020-03-26 14:16:47 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/redhat-sso-7 container.

Original bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1791534
Comment 1 Paramvir jindal 2020-03-26 14:16:54 UTC 
Acknowledgments:

Name: Joseph LaMagna-Reiter (SPR Inc.)
Comment 6 errata-xmlrpc 2020-12-15 17:14:41 UTC 
This issue has been addressed in the following products:

  Red Hat Single Sign-On

Via RHSA-2020:5533 https://access.redhat.com/errata/RHSA-2020:5533
Comment 7 errata-xmlrpc 2020-12-15 19:32:44 UTC 
This issue has been addressed in the following products:

  RHEL-8 based Middleware Containers

Via RHSA-2020:5529 https://access.redhat.com/errata/RHSA-2020:5529
Comment 8 Product Security DevOps Team 2020-12-15 22:18:26 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-2020-10695
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