CVE intelligence and bounded remediation

CVE-2018-1495 — Ibm Flashsystem 900 Firmware security vulnerability

Medium CVSS 6.5

IBM FlashSystem V840 and V900 products could allow an authenticated attacker with specialized access to overwrite arbitrary files which could cause a denial of service. IBM X-Force ID: 141148.

Severity
Medium
CVSS
6.5 (3.0)
Published
2018-05-29
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-269

Affected products

  • ibm / flashsystem_900_firmware
  • ibm / flashsystem_840_firmware

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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