Predictable Token Generation in Apereo CAS Due to Weak Randomization
CVE-2019-10754

8.1HIGH

Key Information:

Vendor

Apereo

Status
Apereo Cas
Vendor
CVE Published:
23 September 2019

What is CVE-2019-10754?

The vulnerability arises from the use of apache commons-lang3 RandomStringUtils within versions of Apereo CAS before 6.1.0-RC5, which employs a pseudo-random number generator (PRNG) that is not cryptographically secure. This flaw compromises the randomness of token and ID generation, making them predictable and exposing the application to potential attacks where attackers could anticipate generated tokens.

Affected Version(s)

Apereo CAS All versions prior to version 6.1.0-RC5

References

https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467406
x_refsource_MISC
https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467402
x_refsource_MISC
https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467404
x_refsource_MISC

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.