Bug 1793283 (CVE-2019-19350) - CVE-2019-19350 openshift/ansible-service-broker: /etc/passwd is given incorrect privileges
Summary: CVE-2019-19350 openshift/ansible-service-broker: /etc/passwd is given incorre...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2019-19350
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: 1793325 1793326 1793868 1793869
Blocks: 1776664 1942177
TreeView+ depends on / blocked
 
Reported: 2020-01-21 04:39 UTC by Mark Cooper
Modified: 2021-10-28 01:23 UTC (History)
9 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-10-28 01:23:02 UTC
Embargoed:

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Description Mark Cooper 2020-01-21 04:39:32 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-service-broker-operator-container.

Original bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1791534
Comment 1 Mark Cooper 2020-01-21 04:39:34 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 4 Mark Cooper 2020-01-22 03:19:25 UTC 
Acknowledgments:

Name: Joseph LaMagna-Reiter (SPR Inc.)
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