Vulnerability Details : CVE-2021-21371
Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as "tenable-jira-cloud". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().
Products affected by CVE-2021-21371
- cpe:2.3:a:tenable:jira_cloud:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21371
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21371
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
8.6
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
1.8
|
6.0
|
NIST | |
5.0
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
1.8
|
2.7
|
GitHub, Inc. |
CWE ids for CVE-2021-21371
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-21371
-
https://pyyaml.docsforge.com/master/documentation/#loading-yaml
Documentation - PyYAML - DocsForgeThird Party Advisory
-
https://pypi.org/project/tenable-jira-cloud/
tenable-jira-cloud · PyPIProduct;Third Party Advisory
-
https://github.com/tenable/integration-jira-cloud/security/advisories/GHSA-8278-88vv-x98r
Execution of untrusted code through config file · Advisory · tenable/integration-jira-cloud · GitHubThird Party Advisory
-
https://github.com/tenable/integration-jira-cloud/commit/f8c2095fd529e664e7fa25403a0a4a85bb3907d0
switched yaml.load() to yaml.safe_load() to not load serialized pytho… · tenable/integration-jira-cloud@f8c2095 · GitHubPatch;Third Party Advisory
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