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CVE-2017-18858: Certain NETGEAR devices are affected by command execution.

CVE-2017-18858 is rated critical with a CVSS v3.1 base score of 9.8 and NVD lists 10 affected products, including Netgear M4200 10mg Poe+ Firmware. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Certain NETGEAR devices are affected by command execution. This affects M4200-10MG-POE+ 12.0.2.11 and earlier, M4300-28G 12.0.2.11 and earlier, M4300-52G 12.0.2.11 and earlier, M4300-28G-POE+ 12.0.2.11 and earlier, M4300-52G-POE+ 12.0.2.11 and earlier, M4300-8X8F 12.0.2.11 and earlier, M4300-12X12F 12.0.2.11 and earlier, M4300-24X24F 12.0.2.11 and earlier, M4300-24X 12.0.2.11 and earlier, and M4300-48X 12.0.2.11 and earlier.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-78: Improper Neutralization of Special Elements used in an OS Command

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.

Affected products

  • Netgear M4200 10mg Poe+ Firmware: up to and including 12.0.2.11
  • Netgear M4300 28g Firmware: up to and including 12.0.2.11
  • Netgear M4300 52g Firmware: up to and including 12.0.2.11
  • Netgear M4300 28g Poe+ Firmware: up to and including 12.0.2.11
  • Netgear M4300 52g Poe+ Firmware: up to and including 12.0.2.11
  • Netgear M4300 8x8f Firmware: up to and including 12.0.2.11
  • Netgear M4300 12x12f Firmware: up to and including 12.0.2.11
  • Netgear M4300 24x24f Firmware: up to and including 12.0.2.11
  • Netgear M4300 24x Firmware: up to and including 12.0.2.11
  • Netgear M4300 48x Firmware: up to and including 12.0.2.11

References