要点
- CVE-2018-1256 は io.pivotal.spring.cloud:spring-cloud-sso-connector, spring cloud sso connector (vmware) に影響する深刻度「高」 (CVSS 8.1) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：1.6%（全脆弱性の 75.6% より高い）。
- 対処：2.1.3.RELEASE 以降に更新してください。
概要
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:</p><ul><li>Spring Cloud SSO Connector: 2.1.3</li></ul>
- Alternatively, you can perform <u>one</u> of the following workarounds:</p><ul><li>Bind your resource server to the SSO service plan via a service instance binding</li><li>Set “sso.connector.cloud.available=true” within your Spring application properties</li></ul>
NVD の説明
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.
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