CVE-2021-20253
First published: Mon Feb 15 2021(Updated: )
A flaw was found in ansible-tower. The default installation is vulnerable to Job Isolation escape allowing an attacker to elevate the privilege from a low privileged user to the awx user from outside the isolated environment. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ansible-tower | <3.8.2 | 3.8.2 |
| redhat/ansible-tower | <3.7.5 | 3.7.5 |
| redhat/ansible-tower | <3.6.7 | 3.6.7 |
| Redhat Ansible Tower | <3.6.7 | |
| Redhat Ansible Tower | >=3.7.0<3.7.5 | |
| Redhat Ansible Tower | >=3.8.0<3.8.2 |
Remedy
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1928847
- https://access.redhat.com/errata/RHSA-2021:0779
- https://access.redhat.com/errata/RHSA-2021:0778
- https://access.redhat.com/errata/RHSA-2021:0780
- https://access.redhat.com/security/cve/cve-2021-20253
- https://www.cve.org/CVERecord?id=CVE-2021-20253 https://nvd.nist.gov/vuln/detail/CVE-2021-20253
Frequently Asked Questions
What is the vulnerability ID of this flaw in ansible-tower?
The vulnerability ID is CVE-2021-20253.
What is the severity level of CVE-2021-20253?
The severity level of CVE-2021-20253 is high.
What is the highest threat from CVE-2021-20253?
The highest threat from CVE-2021-20253 is to data confidentiality and integrity.
Which versions of ansible-tower are affected by CVE-2021-20253?
ansible-tower versions up to 3.8.2, 3.7.5, and 3.6.7 are affected by CVE-2021-20253.
How can I fix CVE-2021-20253?
To fix CVE-2021-20253, update ansible-tower to version 3.8.2, 3.7.5, or 3.6.7.
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