CVE-2021-20191
First published: Fri Jan 15 2021(Updated: )
A flaw was found in ansible. Credentials, such as secrets, are being disclosed in console log by default and not protected by no_log feature when using those modules. An attacker can take advantage of this information to steal those credentials. The highest threat from this vulnerability is to data confidentiality.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ansible | <0:2.9.18-1.el7ae | 0:2.9.18-1.el7ae |
| redhat/ansible | <0:2.9.18-1.el8ae | 0:2.9.18-1.el8ae |
| redhat/ansible | <2.9.18 | 2.9.18 |
| =4.0 | ||
| <2.8.19 | ||
| >=2.9.0<2.9.18 | ||
| >=2.10.0<2.10.7 | ||
| =3.0 | ||
| <1.4.0 | ||
| <1.3.6 | ||
| >=2.0.0<2.0.1 | ||
| <1.3.2 | ||
| >=2.0.0<2.0.1 | ||
| <1.2.2 | ||
| =1.0.2 | ||
| Oracle Virtualization | =4.0 | |
| Redhat Ansible | <2.8.19 | |
| Redhat Ansible | >=2.9.0<2.9.18 | |
| Redhat Ansible | >=2.10.0<2.10.7 | |
| Redhat Ansible Tower | =3.0 | |
| Redhat Cisco Nx-os Collection | <1.4.0 | |
| Redhat Community General Collection | <1.3.6 | |
| Redhat Community General Collection | >=2.0.0<2.0.1 | |
| Redhat Community Network Collection | <1.3.2 | |
| Redhat Community Network Collection | >=2.0.0<2.0.1 | |
| Redhat Docker Community Collection | <1.2.2 | |
| Redhat Google Cloud Platform Ansible Collection | =1.0.2 | |
| pip/ansible | >=2.10.0<2.10.7 | 2.10.7 |
| pip/ansible | <2.8.19 | 2.8.19 |
| pip/ansible | >=2.9.0<2.9.18 | 2.9.18 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-20191
- https://access.redhat.com/security/cve/cve-2021-20191
- https://bugzilla.redhat.com/show_bug.cgi?id=1916813
- https://github.com/ansible/ansible/pull/73488
- https://github.com/ansible/ansible/pull/73489
- https://lists.debian.org/debian-lts-announce/2023/12/msg00018.html
- https://github.com/advisories/GHSA-8f4m-hccc-8qph (Advisory)
- https://github.com/ansible-collections/cisco.nxos/pull/227
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1917474
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1917473
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1917475
- https://access.redhat.com/errata/RHSA-2021:0663
- https://access.redhat.com/errata/RHSA-2021:0664
- https://access.redhat.com/errata/RHSA-2021:1079
- https://access.redhat.com/errata/RHSA-2021:2180
- https://www.cve.org/CVERecord?id=CVE-2021-20191 https://nvd.nist.gov/vuln/detail/CVE-2021-20191
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2021-20191?
CVE-2021-20191 is a vulnerability in Ansible that allows credentials, such as secrets, to be disclosed in the console log.
How can an attacker exploit CVE-2021-20191?
An attacker can take advantage of CVE-2021-20191 to steal credentials by accessing the disclosed information in the console log.
What is the severity of CVE-2021-20191?
CVE-2021-20191 has a severity rating of 5.5 (Medium).
Which software versions are affected by CVE-2021-20191?
Ansible versions 2.10.0 to 2.10.7, 2.8.19, and 2.9.0 to 2.9.18 are affected by CVE-2021-20191.
How can I fix CVE-2021-20191?
To fix CVE-2021-20191, you should update Ansible to version 2.10.7, 2.8.19, or 2.9.18, depending on your current version.
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