CVE intelligence and bounded remediation

CVE-2019-12310 — Exagrid Backup Appliance Firmware security vulnerability

Critical CVSS 9.8

ExaGrid appliances with firmware version v4.8.1.1044.P50 have a /monitor/data/Upgrade/ directory traversal vulnerability, which allows remote attackers to view and retrieve verbose logging information. Files within this directory were observed to contain sensitive run-time information, including Base64 encoded 'support' credentials, leading to administrative access of the device.

Severity
Critical
CVSS
9.8 (3.0)
Published
2019-06-03
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-22

Affected products

  • exagrid / backup_appliance_firmware / 48.1.1044.p50

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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