Insecure Randomness Affecting org.apereo.cas:cas-server-support-shell 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
0.29% (70th percentile)

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  • Snyk IDSNYK-JAVA-ORGAPEREOCAS-467404
  • 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-shell to version 6.1.0-RC5 or higher.

Overview

org.apereo.cas:cas-server-support-shell is a package for the CAS command-line shell provides the ability to query the CAS server for help on available settings/modules and various other utility functions.

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