CVE intelligence and bounded remediation

CVE-2018-19071 — Opticam I5 Application Firmware security vulnerability

High CVSS 7.8

An issue was discovered on Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32, and Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128. /mnt/mtd/boot.sh has 0777 permissions, allowing local users to control the commands executed at system start-up.

Severity
High
CVSS
7.8 (3.0)
Published
2018-11-07
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-732

Affected products

  • opticam / i5_application_firmware / 2.21.1.128
  • opticam / i5_system_firmware / 1.5.2.11
  • foscam / c2_application_firmware / 2.72.1.32
  • foscam / c2_system_firmware / 1.11.1.8

Matched remediation archetype

Privilege escalation and unsafe privilege management

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Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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