Insecure Randomness Affecting org.apereo.cas:cas-server-support-oidc package, versions [,6.1.0-RC5)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.23% (62nd percentile)

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  • Snyk IDSNYK-JAVA-ORGAPEREOCAS-468869
  • published20 Sept 2019
  • disclosed20 Sept 2019
  • creditJonathan Leitschuh

Introduced: 20 Sep 2019

CVE-2019-10754  (opens in a new tab)
CWE-338  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade org.apereo.cas:cas-server-support-oidc to version 6.1.0-RC5 or higher.

Overview

org.apereo.cas:cas-server-support-oidc is a package that allows allows CAS to act as an OpenId Connect Provider (OP).

Affected versions of this package are vulnerable to Insecure Randomness. A insecure source of randomness is used to generate all of its random values as it relies upon apache commons lang3 RandomStringUtils. This could allow an attacker to possibly generate their own unique Ticket ID due to insufficient randomness.

CVSS Scores

version 3.1