PT-2020-15426 · Jenkins · Jenkins Elasticbox Jenkins Kubernetes Ci/Cd Plugin+1

Published 2020-07-02 · Updated 2023-10-25 · CVE-2020-2211

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin versions 1.3 and earlier

Description The issue is related to the YAML parser configuration in the Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin, which allows the instantiation of arbitrary types. This results in a remote code execution vulnerability. The vulnerability can be exploited by users who can provide YAML input files to the plugin's build step.

Recommendations For Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin versions 1.3 and earlier, update to a version that configures its YAML parser to prevent the instantiation of arbitrary types. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2020-2211

GHSA-9R3H-WM3X-V245

Affected Products

Jenkins

Jenkins Elasticbox Jenkins Kubernetes Ci/Cd Plugin

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2020-2211 · Security Note
• https://osv.dev/vulnerability/GHSA-9r3h-wm3x-v245 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-2211 · Vendor Advisory
• https://jenkins.io/security/advisory/2020-07-02/#SECURITY-1738 · Vendor Advisory
• https://github.com/jenkinsci/kubernetes-ci-plugin · Note
• https://t.me/cvenotify/4818 · Telegram Post
• http://openwall.com/lists/oss-security/2020/07/02/7 · Note