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CVE-2021-21609

Good to know:

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Date: January 13, 2021

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not correctly match requested URLs to the list of always accessible paths, allowing attackers without Overall/Read permission to access some URLs as if they did have Overall/Read permission.

Language: Java

Severity Score

Related Resources (4)

https://security.alpinelinux.org/vuln/CVE-2021-21609
https://nvd.nist.gov/vuln/detail/CVE-2021-21609
https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2047
https://www.mend.io/vulnerability-database/CVE-2021-21609

Severity Score

Weakness Type (CWE)

Incorrect Authorization

CWE-863

Top Fix

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Upgrade Version

Upgrade to version org.jenkins-ci.main:jenkins-core:2.275, org.jenkins-ci.main:jenkins-core:LTS 2.263.2

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CVSS v3.1

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

CVSS v2

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

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