CVE intelligence and bounded remediation

CVE-2018-0432 — Cisco Vedge 100 Firmware security vulnerability

High CVSS 9

A vulnerability in the error reporting feature of the Cisco SD-WAN Solution could allow an authenticated, remote attacker to gain elevated privileges on an affected device. The vulnerability is due to a failure to properly validate certain parameters included within the error reporting application configuration. An attacker could exploit this vulnerability by sending a crafted command to the error reporting feature. A successful exploit could allow the attacker to gain root-level privileges and take full control of the device.

Severity
High
CVSS
9 (2.0)
Published
2018-10-05
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-264, CWE-78

Affected products

  • cisco / vedge_100_firmware
  • cisco / vedge_1000_firmware
  • cisco / vedge_2000_firmware
  • cisco / vedge_5000_firmware
  • cisco / vmanage_network_management_system

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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