CVE intelligence and bounded remediation
CVE-2023-4873 — Byzoro Smart S45F Firmware security vulnerability
A vulnerability, which was classified as critical, was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230906. Affected is an unknown function of the file /importexport.php. The manipulation of the argument sql leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-239358 is the identifier assigned to this vulnerability.
- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Published
- 2023-09-10
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-78
Affected products
- byzoro / smart_s45f_firmware
Matched remediation archetype
Command, code, expression, and template injection
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
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
The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.