Deserialization in Tenable Integration-Jira-Cloud
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().
Vulnerability class: Insecure Deserialization
EPSS: 0.005 (37.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Tenable Integration-jira-cloud — versions < 1.1.21
- Tenable Jira_cloud
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Product, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-21371?
- CVE-2021-21371 is a medium-severity vulnerability in Tenable Integration-Jira-Cloud, classified under Deserialization of Untrusted Data. CVSS score: 5.0/10. Published 2021-03-10.
- How severe is CVE-2021-21371?
- Medium severity. CVSS v3 base score is 5.0 out of 10.