CVE-2023-41939 Disabled permissions can be granted by Jenkins SSH2 Easy Plugin
Users formerly granted optional permissions can access functionality they are no longer entitled to due to missing permission verification.
- 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-2023-41939?
CVE-2023-41939 is a high-severity missing authorization vulnerability in Jenkins SSH2 Easy Plugin, published on 6 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins SSH2 Easy Plugin 1.4 and earlier does not verify that permissions configured to be granted are enabled, potentially allowing users formerly granted (typically optional permissions, like Overall/Manage) to access functionality they're no longer entitled to.
Weakness: CWE-281
Which versions are affected by CVE-2023-41939?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:ssh2easy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:ssh2easy Maven | All versions | 1.6 |
org.jenkins-ci.plugins:ssh2easy Maven | All versions | 1.6 |
Products include Jenkins Ssh2 Easy.
How do I fix CVE-2023-41939?
Upgrade org.jenkins-ci.plugins:ssh2easy to 1.6 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-41939 being exploited?
There is no known exploitation of CVE-2023-41939 in the wild and no public exploit code.
Sources
Also known as GHSA-4gh2-m88h-8cj8.