---
title: "CVE-2014-3527\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2014-3527?format=md
keywords: index, follow
---

# CVE-2014-3527

Publication date 25 May 2017

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2014-3527?format=md#impact-score)

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## 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.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2014-3527?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libspring-security-2.0-java | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 17.10 artful | Not in release |
| 17.04 zesty | Not in release |
| 16.10 yakkety | Not in release |
| 16.04 LTS xenial | Not in release |
| 15.10 wily | Ignored end of life |
| 15.04 vivid | Ignored end of life |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Ignored end of life |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

---

### [sbeattie](https://launchpad.net/~sbeattie)

java-spring-security 3.x only?

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3527)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-3527)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-3527)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-3527)

### Other references

* <https://jira.spring.io/browse/SEC-2688>
* <http://spring.io/blog/2014/08/15/cve-2014-3527-fixed-in-spring-security-3-2-5-and-3-1-7>
* <https://www.cve.org/CVERecord?id=CVE-2014-3527>