CVE intelligence and bounded remediation

CVE-2022-40282 — The web server of Hirschmann BAT-C2 before 09.13.01.00R04 allows authenticated command injection

High CVSS 8.8

The web server of Hirschmann BAT-C2 before 09.13.01.00R04 allows authenticated command injection. This allows an authenticated attacker to pass commands to the shell of the system because the dir parameter of the FsCreateDir Ajax function is not sufficiently sanitized. The vendor's ID is BSECV-2022-21.

Severity
High
CVSS
8.8 (3.1)
Published
2022-11-25
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-77

Affected products

  • belden / hirschmann_bat-c2_firmware

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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