CVE intelligence and bounded remediation

CVE-2020-8221 — Ivanti Connect Secure security vulnerability

Medium CVSS 4.9

A path traversal vulnerability exists in Pulse Connect Secure <9.1R8 which allows an authenticated attacker to read arbitrary files via the administrator web interface.

Severity
Medium
CVSS
4.9 (3.1)
Published
2020-07-30
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • ivanti / connect_secure / 9.1
  • pulsesecure / pulse_connect_secure

Showing 2 representative product identities from 24 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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