CVE intelligence and bounded remediation

CVE-2021-22398 — There is a logic error vulnerability in several smartphones

Medium CVSS 4.6

There is a logic error vulnerability in several smartphones. The software does not properly restrict certain operation when the Digital Balance function is on. Successful exploit could allow the attacker to bypass the Digital Balance limit after a series of operations. Affected product versions include: Hulk-AL00C 9.1.1.201(C00E201R8P1);Jennifer-AN00C 10.1.1.171(C00E170R6P3);Jenny-AL10B 10.1.0.228(C00E220R5P1) and OxfordPL-AN10B 10.1.0.116(C00E110R2P1).

Severity
Medium
CVSS
4.6 (3.1)
Published
2021-08-02
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-863

Affected products

  • huawei / hulk-al00c_firmware / 9.1.1.201(c00e201r8p1)
  • huawei / jennifer-an00c_firmware / 10.1.1.171(c00e170r6p3)
  • huawei / jenny-al10b_firmware / 10.1.0.228(c00e220r5p1)
  • huawei / oxfordpl-an10b_firmware / 10.1.0.116(c00e110r2p1)

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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