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CVE-2021-21615

Good to know:

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Date: January 26, 2021

Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition.

Language: Java

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2021-21615
http://www.openwall.com/lists/oss-security/2021/01/26/2
https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197
https://security.alpinelinux.org/vuln/CVE-2021-21615
https://www.mend.io/vulnerability-database/CVE-2021-21615

Severity Score

Weakness Type (CWE)

Time-of-check Time-of-use (TOCTOU) Race Condition

CWE-367

Top Fix

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Upgrade Version

Upgrade to version org.jenkins-ci.main:jenkins-core:2.263.3,2.276

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CVSS v3.1

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

CVSS v2

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

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