CVE-2021-21371
5.0 · MEDIUMOverview
CVE-2021-21371 is a medium-severity vulnerability affecting tenable jira_cloud. It was published on March 10, 2021 and has a CVSS 3.1 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
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().
Remediation
Check the references section for vendor advisories and patches from tenable. Update jira_cloud to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| tenable | jira_cloud | >= 0, < 1.1.21 | Affected |
References
Frequently Asked Questions
What is CVE-2021-21371?
CVE-2021-21371 is a medium-severity vulnerability affecting tenable jira_cloud. It was published on March 10, 2021 and has a CVSS 3.1 base score of 5.0 (MEDIUM).
How severe is CVE-2021-21371?
This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-21371?
Check the references section for vendor advisories and patches from tenable. Update jira_cloud to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-21371?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-21371 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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