CVE intelligence and bounded remediation

CVE-2023-42833 — A correctness issue was addressed with improved checks

High CVSS 8.8

A correctness issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14, Safari 17, iOS 17 and iPadOS 17. Processing web content may lead to arbitrary code execution.

Severity
High
CVSS
8.8 (3.1)
Published
2024-01-10
CISA KEV
Not currently listed
Ecosystem
apple/platform
Weaknesses
CWE-94

Affected products

  • apple / safari
  • apple / ipados
  • apple / iphone_os
  • apple / macos

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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