CVE intelligence and bounded remediation

CVE-2023-34283 — NETGEAR RAX30 USB Share Link Following Information Disclosure Vulnerability

Medium CVSS 4.6

NETGEAR RAX30 USB Share Link Following Information Disclosure Vulnerability. This vulnerability allows physically present attackers to disclose sensitive information on affected installations of NETGEAR RAX30 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of symbolic links on removable USB media. By creating a symbolic link, an attacker can abuse the router's web server to access arbitrary local files. An attacker can leverage this vulnerability to disclose information in the context of root. Was ZDI-CAN-19498.

Severity
Medium
CVSS
4.6 (3.1)
Published
2024-05-03
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-59

Affected products

  • netgear / rax30_firmware

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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