CVE intelligence and bounded remediation

CVE-2022-20656 — Cisco Prime Infrastructure security vulnerability

Medium CVSS 6.5

A vulnerability in the web-based management interface of Cisco PI and Cisco EPNM could allow an authenticated, remote attacker to conduct a path traversal attack on an affected device. To exploit this vulnerability, the attacker must have valid credentials on the system. This vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to write arbitrary files to the host system. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

Severity
Medium
CVSS
6.5 (3.1)
Published
2024-11-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-24

Affected products

  • cisco / prime_infrastructure / 2.0.0
  • cisco / prime_infrastructure / 2.1
  • cisco / prime_infrastructure / 2.2
  • cisco / prime_infrastructure / 3.0.0
  • cisco / prime_infrastructure / 3.1.0
  • cisco / prime_infrastructure / 3.1.5

Showing 6 representative product identities from 40 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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