CVE-2021-21639
jenkins: lack of type validation in agent related REST API
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.
Jenkins versiones 2.286 y anteriores, LTS versiones 2.277.1 y anteriores, no comprueba el tipo de objeto diseñado después de cargar los datos enviados al endpoint de la API REST "config.xml" de un nodo, permitiendo a atacantes con permiso Computer/Configure reemplazar un nodo con uno de un tipo diferente
A flaw was found in Jenkins. Due to lack of validation of type of object created after loading the data submitted to the config.xml REST API endpoint of a node, an attackers with Computer/Configure permission are able to replace a node with one of a different type.
Red Hat Advanced Cluster Management for Kubernetes 2.2.4 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include denial of service and integer overflow vulnerabilities.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-01-04 CVE Reserved
- 2021-04-07 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (4)
URL | Tag | Source |
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http://www.openwall.com/lists/oss-security/2021/04/07/2 | Mailing List |
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URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
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https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721 | 2023-10-25 | |
https://access.redhat.com/security/cve/CVE-2021-21639 | 2021-07-27 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1947102 | 2021-07-27 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Jenkins Search vendor "Jenkins" | Jenkins Search vendor "Jenkins" for product "Jenkins" | <= 2.277.1 Search vendor "Jenkins" for product "Jenkins" and version " <= 2.277.1" | lts |
Affected
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Jenkins Search vendor "Jenkins" | Jenkins Search vendor "Jenkins" for product "Jenkins" | <= 2.286 Search vendor "Jenkins" for product "Jenkins" and version " <= 2.286" | - |
Affected
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