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CVE-2018-1221: Gorouter websocket handling vulnerability

By: | February 13, 2018

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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

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.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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