CVE-2021-21631 Missing permission check in Jenkins Cloud Statistics Plugin
Attackers with read permissions can view provisioning exception error messages due to missing permission checks in the Jenkins Cloud Statistics Plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-21631?
CVE-2021-21631 is a medium-severity missing authorization vulnerability in Jenkins Cloud Statistics Plugin, published on 30 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Cloud Statistics Plugin 0.26 and earlier does not perform a permission check in an HTTP endpoint, allowing attackers with Overall/Read permission and knowledge of random activity IDs to view related provisioning exception error messages.
Weakness: CWE-862
Which versions are affected by CVE-2021-21631?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:cloud-stats. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:cloud-stats Maven | All versions | 0.27 |
org.jenkins-ci.plugins:cloud-stats Maven | All versions | 0.27 |
Products include Jenkins Cloud Statistics.
How do I fix CVE-2021-21631?
Upgrade org.jenkins-ci.plugins:cloud-stats to 0.27 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-21631 being exploited?
There is no known exploitation of CVE-2021-21631 in the wild and no public exploit code.
Sources
Also known as GHSA-xv69-6rf3-w5g2.