CVE-2021-21677 RCE vulnerability in Jenkins Code Coverage API Plugin
Remote attackers can execute arbitrary code by exploiting unsafe deserialization in the Jenkins Code Coverage API 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-2021-21677?
CVE-2021-21677 is a high-severity unsafe deserialization vulnerability in Jenkins Code Coverage API Plugin, published on 31 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Code Coverage API Plugin 1.4.0 and earlier does not apply Jenkins JEP-200 deserialization protection to Java objects it deserializes from disk, resulting in a remote code execution vulnerability.
Weakness: CWE-502
Which versions are affected by CVE-2021-21677?
2 open source packages ship an affected version, including io.jenkins.plugins:code-coverage-api. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
io.jenkins.plugins:code-coverage-api Maven | All versions | 1.4.1 |
io.jenkins.plugins:code-coverage-api Maven | All versions | 1.4.1 |
Products include Jenkins Code Coverage Api.
How do I fix CVE-2021-21677?
Upgrade io.jenkins.plugins:code-coverage-api to 1.4.1 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2021-21677 being exploited?
There is no known exploitation of CVE-2021-21677 in the wild and no public exploit code.
Other vulnerabilities in Jenkins Code Coverage API Plugin
Sources
Also known as GHSA-58pr-hprx-7hg6.