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CVE-2019-10754· NVD / CVE Program· CNA snyk

Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache commons-lang3 RandomStringUtils for token and ID genera

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.

HighCVSS 8.1 · v3.1—No exploit Fix available
Published
Sep 23, 2019
Updated
Jun 16, 2026
EPSS
1.8% · 77th percentile
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Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.8%

Affected systems

VendorProduct
apereocentral authentication service

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apereo central authentication serviceup to 6.0.5.1 inclusive
  • apereo central authentication service6.1.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (snyk). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a Apereo CAS

    • All versions prior to version 6.1.0-RC5affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenorg.apereo.cas:cas-server-core-services-apibefore 6.1.0-RC56.1.0-RC5
Mavenorg.apereo.cas:cas-server-core-services-authenticationbefore 6.1.0-RC56.1.0-RC5
Mavenorg.apereo.cas:cas-server-support-oauth-core-apibefore 6.1.0-RC56.1.0-RC5
Mavenorg.apereo.cas:cas-server-support-oidcbefore 6.1.0-RC56.1.0-RC5
Mavenorg.apereo.cas:cas-server-support-shellbefore 6.1.0-RC56.1.0-RC5
Mavenorg.apereo.cas:cas-server-support-simple-mfabefore 6.1.0-RC56.1.0-RC5

Same product

apereo: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4612MFA bypass in Apereo CAS
    39Monitor
  • CVE-2024-4399CAS <= 1.0.0 - Unauthenticated SSRF
    37Monitor
  • CVE-2015-1169Apereo Central Authentication Service (CAS) Server before 3.5.3 allows remote attackers to conduct LDAP injection attacks via a crafted user
    31Monitor
  • CVE-2023-28857LDAP password leak in Apereo CAS - GHSL-2023-009
    30Monitor
  • CVE-2020-27178Apereo 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 Authen
    30Monitor
  • CVE-2021-42567Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:org.apereo.cas:cas-server-core-services-api6.1.0-RC5Package registry (OSV)
Maven:org.apereo.cas:cas-server-core-services-authentication6.1.0-RC5Package registry (OSV)
Maven:org.apereo.cas:cas-server-support-oauth-core-api6.1.0-RC5Package registry (OSV)
Maven:org.apereo.cas:cas-server-support-oidc6.1.0-RC5Package registry (OSV)
Maven:org.apereo.cas:cas-server-support-shell6.1.0-RC5Package registry (OSV)
Maven:org.apereo.cas:cas-server-support-simple-mfa6.1.0-RC5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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