CVE intelligence and bounded remediation

CVE-2021-22361 — There is an improper authorization vulnerability in eCNS280 V100R005C00, V100R005C10 and eSE620X vESS V100R001C10SPC200, V100R001C20SPC200

High CVSS 7.8

There is an improper authorization vulnerability in eCNS280 V100R005C00, V100R005C10 and eSE620X vESS V100R001C10SPC200, V100R001C20SPC200. A file access is not authorized correctly. Attacker with low access may launch privilege escalation in a specific scenario. This may compromise the normal service.

Severity
High
CVSS
7.8 (3.1)
Published
2021-06-22
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • huawei / ecns280_firmware / v100r005c00
  • huawei / ecns280_firmware / v100r005c10
  • huawei / ese620x_vess_firmware / v100r001c10spc200
  • huawei / ese620x_vess_firmware / v100r001c20spc200

Matched remediation archetype

Privilege escalation and unsafe privilege management

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

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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