CVE intelligence and bounded remediation

CVE-2024-28134 — Phoenixcontact Charx Sec-3000 Firmware security vulnerability

High CVSS 7

An unauthenticated remote attacker can extract a session token with a MitM attack and gain web-based management access with the privileges of the currently logged in user due to cleartext transmission of sensitive information. No additional user interaction is required. The access is limited as only non-sensitive information can be obtained but the availability can be seriously affected.

Severity
High
CVSS
7 (3.1)
Published
2024-05-14
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-319

Affected products

  • phoenixcontact / charx_sec-3000_firmware
  • phoenixcontact / charx_sec-3050_firmware
  • phoenixcontact / charx_sec-3100_firmware
  • phoenixcontact / charx_sec-3150_firmware

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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