🛡️ CVE-2018-1256 — spring-cloud-sso-connector

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Issuer validation regression in Spring Cloud SSO Connector Spring Cloud SSO Connector, version 2.1.2, contains a regression which disables issuer validation in resource servers that are not bound to the SSO service. In PCF deployments with multiple SSO service plans, a remote attacker can authenticate to unbound resource servers which use this version of the SSO Connector with tokens generated from another service plan. ### Mitigation Users of affected versions should apply the following mitigation: * Releases that have fixed this issue include:

  • Spring Cloud SSO Connector: 2.1.3
* Alternatively, you can perform one of the following workarounds:

  • Bind your resource server to the SSO service plan via a service instance binding
  • Set “sso.connector.cloud.available=true” within your Spring application properties

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2018-1256 is recorded against 1 package.

  • io.pivotal.spring.cloud:spring-cloud-sso-connector (from 2.1.2.RELEASE up to 2.1.3.RELEASE)

Timeline and source

Published on 13 May 2022 and last revised on 4 March 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
pivotal.io (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-05-13
Updated 2026-08-12
Modified 2024-03-04
Fix URL N/A

Affected Packages

Software From version Fixed in
io.pivotal.spring.cloud:spring-cloud-sso-connector 2.1.2.RELEASE 2.1.3.RELEASE

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