CVE intelligence and bounded remediation

CVE-2024-20350 — Cisco Catalyst Center security vulnerability

High CVSS 8.1

A vulnerability in the SSH server of Cisco Catalyst Center, formerly Cisco DNA Center, could allow an unauthenticated, remote attacker to impersonate a Cisco Catalyst Center appliance. This vulnerability is due to the presence of a static SSH host key. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections, which could allow the attacker to intercept traffic between SSH clients and a Cisco Catalyst Center appliance. A successful exploit could allow the attacker to impersonate the affected appliance, inject commands into the terminal session, and steal valid user credentials.

Severity
High
CVSS
8.1 (3.1)
Published
2024-09-25
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-321

Affected products

  • cisco / catalyst_center / 1.0.0
  • cisco / catalyst_center / 1.4.0.0
  • cisco / catalyst_center / 2.1.1.0
  • cisco / catalyst_center / 2.1.1.3
  • cisco / catalyst_center / 2.1.2.0
  • cisco / catalyst_center / 2.1.2.3

Showing 6 representative product identities from 86 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cryptography, certificate, signature, and channel validation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory affected algorithms, key uses, trust stores, certificate validation settings, random sources, and plaintext channels across clients and services.
  • Determine which secrets, identities, signatures, or data protections depend on the affected primitive or validation path.
  • Check debug, compatibility, fallback, and hostname or audience override settings in build and runtime configuration.

Remediate safely

  • Use a maintained platform cryptographic API with approved algorithms, modes, parameters, randomness, and full peer identity validation.
  • Remove insecure fallback and validation bypasses; separate keys by purpose and load them from managed secret storage.
  • Plan rotation or reissuance for affected keys, certificates, tokens, hashes, or ciphertext and document compatibility sequencing.

Authoritative sources

Complete CVE record and remediation plan

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