CAS: Access control bypass via untrusted infomation usage in proxy ticket authentication
Published May 25, 2017
9.8
CRITICALCVSS 3.0
EPSS 1.82%
Description
When using the CAS Proxy ticket authentication from Spring Security 3.1 to 3.2.4 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.
Affected products
-
- Version 3.1 to 3.2.4StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Pivotal | Spring Security | n/a |
|
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
No data.
Red Hat Enterprise Virtualization 3
jasperreports-server-pro
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Virtualization 3 | jasperreports-server-pro | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of spring-security-cas provided by jasperreports-server-pro as shipped with Red Hat Enterprise Virtualization Manager 3 as they did not include support for CAS Proxy Service URL configuration via request parameters.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.82% (0.01823) | 78.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.81% (0.01808) | 75.68th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.33% (0.00328) | 53.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.34% (0.00338) | 72.22th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.34% (0.00338) | 70.57th | v3 (v2023.03.01) |
| Feb 5, 2024 | 0.34% (0.00338) | 68.47th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.30% (0.00300) | 64.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (8)
- https://access.redhat.com/security/cve/CVE-2014-3527 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1131359 Issue Tracking
- https://github.com/advisories/GHSA-wmv4-5w76-vp9g Advisory
- https://github.com/spring-projects/spring-security/commit/934937d9c1dc20c396b96c08310b72cfa627acb
- https://github.com/spring-projects/spring-security/issues/2907
- https://nvd.nist.gov/vuln/detail/CVE-2014-3527
- https://pivotal.io/security/cve-2014-3527 x_refsource_CONFIRMVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2014-3527
Change history (0)
No recorded changes yet.