Authorization Bypass in Spring Security
When using Spring Security's CAS Proxy ticket authentication a malicious CAS Service could trick another CAS Service into authenticating a proxy ticket that was not associated. This is due to the fact that the proxy ticket authentication uses the information from the HttpServletRequest which is populated based upon untrusted information within the HTTP request.
This means if there are access control restrictions on which CAS services can authenticate to one another, those restrictions can be bypassed.
If users are not using CAS Proxy tickets and not basing access control decisions based upon the CAS Service, then there is no impact to users.
Mitigation
Users of affected versions should apply the following mitigation:
- Users of 3.2x should upgrade to 3.2.5 or later
- Users of 3.1.x should upgrade to 3.1.7 or later
Credit
This issue was identified by David Ohsie and brought to our attention by the CAS Development team.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.springframework.security:spring-security-core | < 3.1.7, >= 3.2.0, < 3.2.5 | 3.1.7, 3.2.5 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2014-3527
- https://github.com/spring-projects/spring-security/issues/2907
- https://github.com/spring-projects/spring-security/commit/934937d9c1dc20c396b96c08310b72cfa627acb
- https://github.com/spring-projects/spring-security
- https://pivotal.io/security/cve-2014-3527
- Vector CVSS
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-287- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.springframework.security:spring-security-core- Publicada
- 15.09.2020
- Actualizado
- 11.10.2026 12:21
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-wmv4-5w76-vp9g - CC BY 4.0
Historial de vulnerabilidades: org.springframework.security:spring-security-core
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 31
- Primera → última
- 10.2018 04.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 4
- Alta 11
- Media 15
- Baja 1
Divulgaciones por año
- 2018: 3
- 2019: 2
- 2020: 4
- 2021: 1
- 2022: 10
- 2023: 1
- 2024: 4
- 2025: 3
- 2026: 3
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Authorization Bypass in Spring Security esta entrada
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