CVE intelligence and bounded remediation

CVE-2018-11543 — Ribboncommunications Sonus Sbc 1000 Firmware security vulnerability

High CVSS 7.5

A Local File Inclusion (LFI) vulnerability in the Sonus SBC 1000 / SBC 2000 / SBC SWe Lite web interface allows for the downloading of arbitrary files via an unspecified vector. It affects the 1000 and 2000 devices 6.0.x up to Build 446, 6.1.x up to Build 492, and 7.0.x up to Build 485. It affects the SWe Lite devices 6.1.x up to Build 111 and 7.0.x up to Build 140.

Severity
High
CVSS
7.5 (3.0)
Published
2018-07-09
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-22

Affected products

  • ribboncommunications / sonus_sbc_1000_firmware / 6.0.0
  • ribboncommunications / sonus_sbc_1000_firmware / 6.1.0
  • ribboncommunications / sonus_sbc_1000_firmware / 7.0.0
  • ribboncommunications / sonus_sbc_2000_firmware / 6.0.0
  • ribboncommunications / sonus_sbc_2000_firmware / 6.1.0
  • ribboncommunications / sonus_sbc_2000_firmware / 7.0.0

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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

Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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