CVE intelligence and bounded remediation

CVE-2019-12704 — Cisco Spa112 Firmware security vulnerability

Medium CVSS 6.5

A vulnerability in the web-based management interface of Cisco SPA100 Series Analog Telephone Adapters (ATAs) could allow an authenticated, remote attacker to view the contents of arbitrary files on an affected device. The vulnerability is due to improper input validation in the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to retrieve the contents of arbitrary files on the device, possibly resulting in the disclosure of sensitive information.

Severity
Medium
CVSS
6.5 (3.1)
Published
2019-10-16
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-200, CWE-22

Affected products

  • cisco / spa112_firmware
  • cisco / spa112_firmware / 1.4.1
  • cisco / spa122_firmware
  • cisco / spa122_firmware / 1.4.1

Showing 4 representative product identities from 10 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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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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