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CVE-2020-2161

Good to know:

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Date: March 25, 2020

Jenkins 2.227 and earlier, LTS 2.204.5 and earlier does not properly escape node labels that are shown in the form validation for label expressions on job configuration pages, resulting in a stored XSS vulnerability exploitable by users able to define node labels.

Language: Java

Severity Score

Related Resources (5)

https://jenkins.io/security/advisory/2020-03-25/#SECURITY-1781
http://www.openwall.com/lists/oss-security/2020/03/25/2
https://nvd.nist.gov/vuln/detail/CVE-2020-2161
https://security.alpinelinux.org/vuln/CVE-2020-2161
https://www.mend.io/vulnerability-database/CVE-2020-2161

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Top Fix

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Upgrade Version

Upgrade to version org.jenkins-ci.main:jenkins-core:2.228;org.jenkins-ci.main:jenkins-core:2.228

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CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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