CVE-2021-21677
First published: Tue Aug 31 2021(Updated: )
Jenkins Code Coverage API Plugin 1.4.0 and earlier does not apply [JEP-200 deserialization protection](https://github.com/jenkinsci/jep/tree/master/jep/200) to Java objects it deserializes from disk. This results in a remote code execution (RCE) vulnerability exploitable by attackers able to control agent processes. Jenkins Code Coverage API Plugin 1.4.1 configures its Java object deserialization to only deserialize safe types.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/io.jenkins.plugins:code-coverage-api | <=1.4.0 | 1.4.1 |
| Jenkins Code Coverage API | <=1.4.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/08/31/1
- https://www.jenkins.io/security/advisory/2021-08-31/#SECURITY-2376
- https://nvd.nist.gov/vuln/detail/CVE-2021-21677
- https://github.com/jenkinsci/code-coverage-api-plugin/commit/a5b3c18cff2a0b494c55fa73b05fc935b50530be
- https://github.com/advisories/GHSA-58pr-hprx-7hg6 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-21677?
CVE-2021-21677 is classified as a critical vulnerability due to its ability to allow remote code execution.
How do I fix CVE-2021-21677?
To fix CVE-2021-21677, upgrade the Jenkins Code Coverage API Plugin to version 1.4.1 or later.
Who is affected by CVE-2021-21677?
CVE-2021-21677 affects users of Jenkins Code Coverage API Plugin version 1.4.0 and earlier.
What types of vulnerabilities does CVE-2021-21677 present?
CVE-2021-21677 presents a remote code execution vulnerability due to improper handling of deserialization.
How can CVE-2021-21677 be exploited?
CVE-2021-21677 can be exploited by attackers who can control the serialized Java objects deserialized by the plugin.
- collector/github-advisory-latest
- alias/GHSA-58pr-hprx-7hg6
- alias/CVE-2021-21677
- collector/github-advisory
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/author
- agent/weakness
- agent/severity
- agent/first-publish-date
- agent/event
- agent/description
- agent/trending
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- collector/nvd-cve
- package-manager/maven
- vendor/jenkins
- canonical/jenkins code coverage api
- version/jenkins code coverage api/1.4.0