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CVE-2020-2102

Good to know:

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Date: January 29, 2020

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.

Language: Java

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2020-2102
https://access.redhat.com/errata/RHBA-2020:0675
https://access.redhat.com/errata/RHSA-2020:0683
https://access.redhat.com/errata/RHBA-2020:0402
https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1660
https://access.redhat.com/errata/RHSA-2020:0681
http://www.openwall.com/lists/oss-security/2020/01/29/1
https://github.com/jenkinsci/jenkins
https://github.com/jenkinsci/jenkins/commit/6f35dbb939ebe947bdb1979010b208480f1d0e31
https://www.mend.io/vulnerability-database/CVE-2020-2102

Severity Score

Weakness Type (CWE)

Observable Discrepancy

CWE-203

Observable Timing Discrepancy

CWE-208

Top Fix

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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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