CVE-2021-21658 XML external entity vulnerability in Jenkins Nuget Plugin
An attacker can exploit XML external entity vulnerabilities in the Jenkins Nuget Plugin to read sensitive files or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-21658?
CVE-2021-21658 is a critical vulnerability in Jenkins Nuget Plugin, published on 25 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Jenkins Nuget Plugin 1.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
Which versions are affected by CVE-2021-21658?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:nuget. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:nuget Maven | All versions | 1.1 |
org.jenkins-ci.plugins:nuget Maven | All versions | 1.1 |
Products include Jenkins Nuget.
How do I fix CVE-2021-21658?
Upgrade org.jenkins-ci.plugins:nuget to 1.1 or later.
Is CVE-2021-21658 being exploited?
There is no known exploitation of CVE-2021-21658 in the wild and no public exploit code.
Sources
Also known as GHSA-p674-hh8x-rv5h.