CVE intelligence and bounded remediation

CVE-2021-22118 — Vmware Spring Framework security vulnerability

High CVSS 7.8

In Spring Framework, versions 5.2.x prior to 5.2.15 and versions 5.3.x prior to 5.3.7, a WebFlux application is vulnerable to a privilege escalation: by (re)creating the temporary storage directory, a locally authenticated malicious user can read or modify files that have been uploaded to the WebFlux application, or overwrite arbitrary files with multipart request data.

Severity
High
CVSS
7.8 (3.1)
Published
2021-05-27
CISA KEV
Not currently listed
Ecosystem
java/maven
Weaknesses
CWE-269, CWE-668

Affected products

  • vmware / spring_framework
  • oracle / commerce_guided_search / 11.3.2
  • oracle / communications_brm_-_elastic_charging_engine / 12.0.0.3
  • oracle / communications_cloud_native_core_binding_support_function / 1.9.0
  • oracle / communications_cloud_native_core_policy / 1.14.0
  • oracle / communications_cloud_native_core_security_edge_protection_proxy / 1.6.0

Showing 6 representative product identities from 49 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Privilege escalation and unsafe privilege management

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Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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