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CVE-2020-27178

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Date: October 16, 2020

Apereo CAS 5.3.x before 5.3.16, 6.x before 6.1.7.2, 6.2.x before 6.2.4, and 6.3.x before 6.3.0-RC4 mishandles secret keys with Google Authenticator for multifactor authentication.

Language: Java

Severity Score

Related Resources (4)

https://apereo.github.io/2020/10/14/gauthvuln
https://nvd.nist.gov/vuln/detail/CVE-2020-27178
https://apereo.github.io/2020/10/14/gauthvuln/
https://www.mend.io/vulnerability-database/CVE-2020-27178

Severity Score

Weakness Type (CWE)

Improper Authentication

CWE-287

Top Fix

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Upgrade Version

Upgrade to version org.apereo.cas:cas-server-support-otp-mfa-core:6.1.7.2;org.apereo.cas:cas-server-support-otp-mfa-core:6.2.4;org.apereo.cas:cas-server-webapp:5.3.16;org.apereo.cas:cas-server-webapp:6.1.7.2;org.apereo.cas:cas-server-webapp:6.2.4

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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): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

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

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