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Security Advisories: GSA_kwCzR0hTQS1xNHEyLTkzcHctcXdnZs3t2g
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 bindingSet “sso.connector.cloud.available=true” within your Spring application properties
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1xNHEyLTkzcHctcXdnZs3t2g
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: 7 months ago
CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Identifiers: GHSA-q4q2-93pw-qwgf, CVE-2018-1256
References:
- https://nvd.nist.gov/vuln/detail/CVE-2018-1256
- https://pivotal.io/security/cve-2018-1256
- https://github.com/pivotal-cf/spring-cloud-sso-connector/commit/ef647a2acf2363c6018e8543d665ac8862593372
- https://github.com/advisories/GHSA-q4q2-93pw-qwgf
Blast Radius: 6.3
Affected Packages
maven:io.pivotal.spring.cloud:spring-cloud-sso-connector
Dependent packages: 5Dependent repositories: 6
Downloads:
Affected Version Ranges: = 2.1.2.RELEASE
Fixed in: 2.1.3.RELEASE
All affected versions:
All unaffected versions: