CVE-2021-21646 : Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline c

Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.

Published 2021-04-21 15:15:08

Updated 2023-10-25 18:16:49

Source Jenkins Project

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2021-21646

Jenkins » Templating Engine » For Jenkins
Versions up to, including, (<=) 2.1
cpe:2.3:a:jenkins:templating_engine:*:*:*:*:*:jenkins:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-21646

EPSS FAQ

0.39%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 59 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21646

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2021-21646

https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311

Jenkins Security Advisory 2021-04-21
Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/04/21/2

oss-security - Multiple vulnerabilities in Jenkins plugins
Mailing List;Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-21646

Products affected by CVE-2021-21646

Exploit prediction scoring system (EPSS) score for CVE-2021-21646

CVSS scores for CVE-2021-21646

References for CVE-2021-21646