CVE intelligence and bounded remediation

CVE-2022-27906 — Mendelson OFTP2 before 1.1 b43 is affected by directory traversal

Medium CVSS 5.9

Mendelson OFTP2 before 1.1 b43 is affected by directory traversal. To access the vulnerable code path, the attacker has to know one of the configured Odette IDs of the OFTP2 server. An attacker can upload files to the server outside of the intended upload directory.

Severity
Medium
CVSS
5.9 (3.1)
Published
2022-03-25
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • mendelson / oftp2

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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