Use of Insufficiently Random Values in Apereo CAS
Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache commons-lang3 RandomStringUtils for token and ID generation which makes them predictable due to RandomStringUtils PRNG's algorithm not being cryptographically strong.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apereo.cas:cas-server-core-services-api | < 6.1.0-RC5 | 6.1.0-RC5 |
| Java / Kotlin (Maven) | org.apereo.cas:cas-server-core-services-authentication | < 6.1.0-RC5 | 6.1.0-RC5 |
| Java / Kotlin (Maven) | org.apereo.cas:cas-server-support-oauth-core-api | < 6.1.0-RC5 | 6.1.0-RC5 |
| Java / Kotlin (Maven) | org.apereo.cas:cas-server-support-oidc | < 6.1.0-RC5 | 6.1.0-RC5 |
| Java / Kotlin (Maven) | org.apereo.cas:cas-server-support-shell | < 6.1.0-RC5 | 6.1.0-RC5 |
| Java / Kotlin (Maven) | org.apereo.cas:cas-server-support-simple-mfa | < 6.1.0-RC5 | 6.1.0-RC5 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-10754
- https://github.com/apereo/cas/commit/40bf278e66786544411c471de5123e7a71826b9f
- https://github.com/apereo/cas
- https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467402
- https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467404
- https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467406
- https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-468868
- https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-468869
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-330, CWE-338- Platform
- Java / Kotlin (Maven)
- Package
org.apereo.cas:cas-server-core-services-api, org.apereo.cas:cas-server-core-services-authentication, org.apereo.cas:cas-server-support-oauth-core-api- Disclosed
- 24.05.2022
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-g24w-373r-5pxg - CC BY 4.0
Vulnerability history: org.apereo.cas:cas-server-core-services-api
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.