CVE-2018-1221: Gorouter websocket handling vulnerability

Severity

Critical

Vendor

Cloud Foundry Foundation

Affected Cloud Foundry Products and Versions

• cf-deployment
  • All versions prior to 1.14.0
• routing-release
  • All versions prior to 0.172.0

Description

The Cloud Foundry Gorouter mishandles WebSocket requests for AWS Application Load Balancers (ALBs) and some other HTTP-aware Load Balancers. A user with developer privileges could use this vulnerability to steal data or cause denial of service.

Mitigation

Users of affected versions should apply the following mitigations or upgrades:

• Releases that have fixed this issue include:
  • cf-deployment: 1.14.0
  • routing-release: 0.172.0

References

• https://github.com/cloudfoundry/cf-deployment/releases
• https://github.com/cloudfoundry/routing-release/releases

Credit

This issue was responsibly reported by the Volkswagen Digital:Lab Platform Team.

History

2018-02-13: Initial vulnerability report published, versions clarified, credit added.

2018-02-14: Versions clarified.