CVE-2017-4992

Cloud Foundry UAA privilege escalation with user invitations

An issue was discovered in Cloud Foundry Foundation cf-release versions prior to v261; UAA release 2.x versions prior to v2.7.4.17, 3.6.x versions prior to v3.6.11, 3.9.x versions prior to v3.9.13, and other versions prior to v4.2.0; and UAA bosh release (uaa-release) 13.x versions prior to v13.15, 24.x versions prior to v24.10, 30.x versions prior to 30.3, and other versions prior to v37. There is privilege escalation (arbitrary password reset) with user invitations.

The application assigns, modifies, tracks, or checks privileges incorrectly, allowing a user to gain elevated access. Typical impact: privilege escalation beyond the intended level.

CVE-2017-4992 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (2.7.4.17, 3.6.11, 3.9.13, 4.2.0); upgrading removes the vulnerable code path.

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1. What is CVE-2017-4992? CVE-2017-4992 is a critical-severity improper privilege management vulnerability in org.cloudfoundry.identity:cloudfoundry-identity-server (maven), affecting versions >= 2.0.0, < 2.7.4.17. It is fixed in 2.7.4.17, 3.6.11, 3.9.13, 4.2.0. The application assigns, modifies, tracks, or checks privileges incorrectly, allowing a user to gain elevated access.
2. How severe is CVE-2017-4992? CVE-2017-4992 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of org.cloudfoundry.identity:cloudfoundry-identity-server are affected by CVE-2017-4992? org.cloudfoundry.identity:cloudfoundry-identity-server (maven) versions >= 2.0.0, < 2.7.4.17 is affected.
4. Is there a fix for CVE-2017-4992? Yes. CVE-2017-4992 is fixed in 2.7.4.17, 3.6.11, 3.9.13, 4.2.0. Upgrade to this version or later.
5. Is CVE-2017-4992 exploitable, and should I be worried? Whether CVE-2017-4992 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2017-4992 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2017-4992?
   • Upgrade org.cloudfoundry.identity:cloudfoundry-identity-server to 2.7.4.17 or later
   • Upgrade org.cloudfoundry.identity:cloudfoundry-identity-server to 3.6.11 or later
   • Upgrade org.cloudfoundry.identity:cloudfoundry-identity-server to 3.9.13 or later
   • Upgrade org.cloudfoundry.identity:cloudfoundry-identity-server to 4.2.0 or later

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