CVE-2021-4112
First published: Wed Dec 01 2021(Updated: )
A researcher found a trivial bypass for <a href="https://access.redhat.com/security/cve/CVE-2021-20253">CVE-2021-20253</a> by sending a mail to awx user, thereby leveraging postfix to create a folder, owned by awx, then placing a binary in that folder that lets a low privilege user to elevate to awx outside the isolation jail.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Redhat Ansible Automation Platform Early Access | =2.0 | |
| Redhat Ansible Automation Platform Text-only Advisories | ||
| Redhat Ansible Tower | =3.0 | |
| Redhat Ansible Automation Platform | =2.0 | |
| Redhat Ansible Automation Platform | =2.1 | |
| Redhat Enterprise Linux | =8.0 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2021-20253
- https://access.redhat.com/errata/RHSA-2022:0460
- https://access.redhat.com/errata/RHSA-2022:0474
- https://access.redhat.com/errata/RHSA-2022:0482
- https://access.redhat.com/security/cve/cve-2021-4112
- https://bugzilla.redhat.com/show_bug.cgi?id=2028121
- https://access.redhat.com/security/cve/CVE-2021-4112
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-4112.
What is the severity of CVE-2021-4112?
The severity of CVE-2021-4112 is high.
How does CVE-2021-4112 impact Ansible Tower?
CVE-2021-4112 impacts Ansible Tower by allowing an attacker to elevate privileges from a low privileged user to an AWX user outside the isolated environment.
Which software versions are affected by CVE-2021-4112?
The affected software versions include Redhat Ansible Automation Platform Early Access 2.0, Redhat Ansible Automation Platform Text-only Advisories, Redhat Ansible Tower 3.0, Redhat Ansible Automation Platform 2.0, and Redhat Ansible Automation Platform 2.1.
How can I mitigate the vulnerability CVE-2021-4112?
To mitigate CVE-2021-4112, update to the patched versions mentioned in the Red Hat Security Advisories RHSA-2022:0460 and RHSA-2022:0474.
- collector/redhat-bugzilla
- alias/CVE-2021-4112
- collector/nvd-index
- agent/event
- agent/severity
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- agent/references
- agent/author
- agent/tags
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- vendor/redhat
- canonical/redhat ansible automation platform early access
- version/redhat ansible automation platform early access/2.0
- canonical/redhat ansible automation platform text-only advisories
- canonical/redhat ansible tower
- version/redhat ansible tower/3.0
- canonical/redhat ansible automation platform
- version/redhat ansible automation platform/2.0
- version/redhat ansible automation platform/2.1
- canonical/redhat enterprise linux
- version/redhat enterprise linux/8.0