CVE intelligence and bounded remediation

CVE-2018-0433 — Cisco Vedge 100 Firmware security vulnerability

High CVSS 7.8

A vulnerability in the command-line interface (CLI) in the Cisco SD-WAN Solution could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI utility. The attacker must be authenticated to access the CLI utility. A successful exploit could allow the attacker to execute commands with root privileges.

Severity
High
CVSS
7.8 (3.1)
Published
2018-10-05
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-77, CWE-78

Affected products

  • cisco / vedge_100_firmware
  • cisco / vedge_1000_firmware
  • cisco / vedge_2000_firmware
  • cisco / vedge_5000_firmware
  • cisco / vbond_orchestrator
  • cisco / vedge_cloud_router_platform

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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