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TI-2024-10383 Aliases CVE-2024-11209GHSA-w337-q6fh-r4gh

Apereo CAS 2FA login improper authentication

Priority MEDIUM 57CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

A vulnerability was found in Apereo CAS 6.6. It has been classified as critical. This affects an unknown part of the file /login?service of the component 2FA. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0062 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApereoCAS6.6—No fix listedCNA
  • CAS VendorApereo Affected 6.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apereo:central_authentication_service:6.6.0:-:*:*:*:*:*:*6.6.0VulnerableApereo
  • cpe:2.3:a:apereo:central_authentication_service:6.6.0:-:*:*:*:*:*:* Versions 6.6.0 Vulnerable ·Apereo

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-11209
  2. 2026-10-03 Alias added: GHSA-w337-q6fh-r4gh

References

Exploit 1

  • TI-2023-13363 LDAP password leak in Apereo CAS - GHSL-2023-009 CVSS 3.1HIGH 7.5
  • TI-2024-10382 Apereo CAS login session expiration CVSS 4.0MEDIUM 6.3
  • TI-2024-10381 Apereo CAS login redirect CVSS 4.0MEDIUM 5.3
  • TI-2024-04097 CAS <= 1.0.0 - Unauthenticated SSRF CVSS 3.1CRITICAL 9.1
  • TI-2023-04254 MFA bypass in Apereo CAS CVSS 3.1CRITICAL 9.8
  • TI-2019-08019 Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache… CVSS 3.1HIGH 8.1
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences