CVE intelligence and bounded remediation

CVE-2023-33381 — Mitrastar Gpt-2741Gnac Firmware security vulnerability

High CVSS 7.2

A command injection vulnerability was found in the ping functionality of the MitraStar GPT-2741GNAC router (firmware version AR_g5.8_110WVN0b7_2). The vulnerability allows an authenticated user to execute arbitrary OS commands by sending specially crafted input to the router via the ping function.

Severity
High
CVSS
7.2 (3.1)
Published
2023-06-06
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-78

Affected products

  • mitrastar / gpt-2741gnac_firmware / ar_g5.8_110wvn0b7_2

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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