Vulnerability Details : CVE-2021-3583
A flaw was found in Ansible, where a user's controller is vulnerable to template injection. This issue can occur through facts used in the template if the user is trying to put templates in multi-line YAML strings and the facts being handled do not routinely include special template characters. This flaw allows attackers to perform command injection, which discloses sensitive information. The highest threat from this vulnerability is to confidentiality and integrity.
Vulnerability category: Input validation
Exploit prediction scoring system (EPSS) score for CVE-2021-3583
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 10 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-3583
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
3.6
|
LOW | AV:L/AC:L/Au:N/C:P/I:P/A:N |
3.9
|
4.9
|
NIST |
|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
1.8
|
5.2
|
NIST |
CWE ids for CVE-2021-3583
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: secalert@redhat.com (Secondary)
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by: secalert@redhat.com (Secondary)
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3583
-
https://lists.debian.org/debian-lts-announce/2023/12/msg00018.html
[SECURITY] [DLA 3695-1] ansible security update
-
https://bugzilla.redhat.com/show_bug.cgi?id=1968412
1968412 – (CVE-2021-3583) CVE-2021-3583 ansible: Template Injection through yaml multi-line strings with ansible facts used in template.Issue Tracking;Vendor Advisory
Products affected by CVE-2021-3583
- cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_engine:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_automation_platform:1.2:*:*:*:*:*:*:*