Central Authentication Service
CVE-2024-11209
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application. |
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Alert meAnalysisAI
A vulnerability was found in Apereo CAS 6.6. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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. Affected products include: Apereo Central Authentication Service.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Primary rating from Vendor (vuldb) · only source for this CVE.
CVSS VectorVendor: vuldb
DescriptionCVE.org
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)CVE.org
The does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF
Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache commons-lang3 RandomStringUtils for
Apereo Central Authentication Service (CAS) Server before 3.5.3 allows remote attackers to conduct LDAP injection attack
A vulnerability was found in Apereo CAS 6.6 and classified as problematic. Rated medium severity (CVSS 6.3), this vulner
Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints. Rated medium severity (CVSS 6.1),
Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allo
A vulnerability has been found in Apereo CAS 6.6 and classified as problematic. Rated medium severity (CVSS 5.3), this v
Apereo CAS is an open source multilingual single sign-on solution for the web. Rated high severity (CVSS 7.5), this vuln
Apereo 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 key
A vulnerability was found in Apereo CAS 5.2.6. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploita
A vulnerability was found in Apereo CAS 5.2.6. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploita
A vulnerability was found in Apereo CAS 5.2.6 and classified as critical. Rated low severity (CVSS 2.3), this vulnerabil
Exploit-DB