Vulnerability Details : CVE-2021-20228
A flaw was found in the Ansible Engine 2.9.18, where sensitive info is not masked by default and is not protected by the no_log feature when using the sub-option feature of the basic.py module. This flaw allows an attacker to obtain sensitive information. The highest threat from this vulnerability is to confidentiality.
Vulnerability category: Information leak
Products affected by CVE-2021-20228
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_tower:3.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_engine:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_engine:2.9.18:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_engine:2.9:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_automation_platform:1.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20228
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20228
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-20228
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
-
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2021-20228
-
https://github.com/ansible/ansible/pull/73487
no_log mask suboption fallback values and defaults CVE-2021-20228 by jborean93 · Pull Request #73487 · ansible/ansible · GitHubPatch;Third Party Advisory
-
https://www.debian.org/security/2021/dsa-4950
Debian -- Security Information -- DSA-4950-1 ansibleThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1925002
1925002 – (CVE-2021-20228) CVE-2021-20228 ansible: basic.py no_log with fallback optionIssue Tracking;Third Party Advisory
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