CVE-2021-21656 XML external entity (XXE) attacks in Jenkins Xcode integration Plugin
An attacker can exploit XML external entity vulnerabilities in the Jenkins Xcode integration plugin to read sensitive files or cause denial of service.
- 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-2021-21656?
CVE-2021-21656 is a high-severity vulnerability in Jenkins Xcode integration Plugin, published on 11 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Xcode integration Plugin 2.0.14 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
Which versions are affected by CVE-2021-21656?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:xcode-plugin. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:xcode-plugin Maven | All versions | 2.0.15 |
org.jenkins-ci.plugins:xcode-plugin Maven | All versions | 2.0.15 |
Products include Jenkins Xcode Integration.
How do I fix CVE-2021-21656?
Upgrade org.jenkins-ci.plugins:xcode-plugin to 2.0.15 or later.
Is CVE-2021-21656 being exploited?
There is no known exploitation of CVE-2021-21656 in the wild and no public exploit code.
Sources
Also known as GHSA-wfxp-4qgw-qp3c.