CVE-2021-21624
First published: Thu Mar 18 2021(Updated: )
An incorrect permission check in Jenkins Role-based Authorization Strategy Plugin 3.1 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jenkins Role-based Authorization Strategy | <=3.1 | |
| maven/org.jenkins-ci.plugins:role-strategy | <=3.1 | 3.1.1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/03/18/5
- https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2182
- https://nvd.nist.gov/vuln/detail/CVE-2021-21624
- https://github.com/jenkinsci/role-strategy-plugin/commit/2490ed51c30f6df9db809a7dcf637ac8ac08233a
- https://github.com/advisories/GHSA-rm4m-39fj-288c (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-21624?
CVE-2021-21624 is considered a medium-severity vulnerability due to the improper permission checks that can lead to unauthorized access to nested items.
How do I fix CVE-2021-21624?
To fix CVE-2021-21624, upgrade the Jenkins Role-based Authorization Strategy Plugin to version 3.1.1 or later.
What causes the vulnerability identified as CVE-2021-21624?
The vulnerability occurs due to an incorrect permission check that allows users with Item/Read permission on nested items to access items in parent folders without proper permission.
What types of items are affected by CVE-2021-21624?
CVE-2021-21624 affects items organized hierarchically in Jenkins, such as jobs and folders.
Is CVE-2021-21624 still exploitable in the latest Jenkins versions?
No, CVE-2021-21624 is not exploitable in the latest versions if the Role-based Authorization Strategy Plugin has been updated to the fixed version.
- collector/nvd-index
- collector/nvd-api
- collector/nvd-cve
- collector/github-advisory-latest
- alias/GHSA-rm4m-39fj-288c
- alias/CVE-2021-21624
- collector/github-advisory
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- agent/softwarecombine
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- source/MITRE
- agent/references
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- agent/last-modified-date
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- agent/first-publish-date
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- vendor/jenkins
- canonical/jenkins role-based authorization strategy
- version/jenkins role-based authorization strategy/3.1
- package-manager/maven