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CVE-2021-21646

Good to know:

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Date: April 21, 2021

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.

Language: GROOVY

Severity Score

Related Resources (6)

http://www.openwall.com/lists/oss-security/2021/04/21/2
https://github.com/jenkinsci/templating-engine-plugin
https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311
https://github.com/jenkinsci/templating-engine-plugin/commit/aed14bed7333329f51330d0a8111e4d94cdee3e6
https://nvd.nist.gov/vuln/detail/CVE-2021-21646
https://www.mend.io/vulnerability-database/CVE-2021-21646

Severity Score

Weakness Type (CWE)

Protection Mechanism Failure

CWE-693

Top Fix

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Upgrade to version org.jenkins-ci.plugins:templating-engine:2.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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