Bug 1880274 (CVE-2020-25636) - CVE-2020-25636 Collections: aws_ssm connection plugin should namespace its file transfers
Summary: CVE-2020-25636 Collections: aws_ssm connection plugin should namespace its fi...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-25636
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: 1875993
TreeView+ depends on / blocked
 
Reported: 2020-09-18 07:28 UTC by Borja Tarraso
Modified: 2021-02-09 20:28 UTC (History)
0 users

Fixed In Version: aws_ssm 1.3.0
Doc Type: ---
Doc Text:
A flaw was found in Ansible Base when using the aws_ssm connection plugin, as there is not a namespace separation for file transfers. Files are written directly to the root bucket, making it possible to have collisions when running multiple Ansible processes. The highest threat from this vulnerability is to integrity and system availability.
Clone Of:
Environment:
Last Closed: 2020-09-24 08:41:12 UTC
Embargoed:

Attachments (Terms of Use)

Description Borja Tarraso 2020-09-18 07:28:46 UTC 
The aws_ssm connection plugin uses an s3 buckets to transfer files to instances. It writes these files directly to the root of the bucket. If multiple ansible processes are running and sharing the same bucket at the same time, collisions could happen.
Comment 1 Borja Tarraso 2020-09-18 07:28:50 UTC 
Acknowledgments:

Name: Abel Luck (The Guardian Project)
Comment 2 Borja Tarraso 2020-09-18 07:28:52 UTC 
External References:

https://github.com/ansible-collections/community.aws/issues/221
Comment 3 Borja Tarraso 2020-09-18 07:28:54 UTC 
Mitigation:

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Comment 7 Borja Tarraso 2020-09-23 06:23:18 UTC 
Upstream fix: https://github.com/ansible-collections/community.aws/pull/237
Comment 8 Product Security DevOps Team 2020-09-24 08:41:12 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-2020-25636
Comment 10 RaTasha Tillery-Smith 2021-02-09 20:28:50 UTC 
Statement:

Ansible collection aws_ssm connection community plugin 1.2.1 and previous versions until 1.0.0 when it was introduced to this plugin are affected versions by this flaw.
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