CVE intelligence and bounded remediation

CVE-2017-16522 — Mitrastar Gpt-2541Gnac Firmware security vulnerability

High CVSS 9

MitraStar GPT-2541GNAC (HGU) 1.00(VNJ0)b1 and DSL-100HN-T1 ES_113WJY0b16 devices allow remote authenticated users to obtain root access by specifying /bin/sh as the command to execute.

Severity
High
CVSS
9 (2.0)
Published
2017-11-03
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-276

Affected products

  • mitrastar / gpt-2541gnac_firmware / 1.00(vnj0)b1
  • mitrastar / dsl-100hn-t1_firmware / es_113wjy0b16

Matched remediation archetype

Privilege escalation and unsafe privilege management

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

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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