CVE intelligence and bounded remediation

CVE-2021-43589 — Dell Emc Unity Operating Environment security vulnerability

High CVSS 7.2

Dell EMC Unity, Dell EMC UnityVSA and Dell EMC Unity XT versions prior to 5.1.2.0.5.007 contain an operating system (OS) command injection Vulnerability. A locally authenticated user with high privileges may potentially exploit this vulnerability, leading to the execution of arbitrary OS commands on the Unity underlying OS, with the privileges of the vulnerable application. Exploitation may lead to an elevation of privilege.

Severity
High
CVSS
7.2 (2.0)
Published
2022-01-24
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-77, CWE-78

Affected products

  • dell / emc_unity_operating_environment
  • dell / emc_unity_xt_operating_environment
  • dell / emc_unityvsa_operating_environment

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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