CVE-2025-44963: Ruckus Network Director Auth Bypass Flaw

CVE-2025-44963 Overview

CVE-2025-44963 is an authentication vulnerability in RUCKUS Network Director (RND) versions before 4.5. The product ships with a hardcoded secret key used to sign JSON Web Tokens (JWTs). An attacker who learns this static key can forge a valid administrator JWT and impersonate any privileged user against the management plane. The flaw is tracked under CWE-321: Use of Hard-coded Cryptographic Key. RUCKUS Network Director is a centralized management platform for large-scale RUCKUS wireless and switching deployments, so a successful forgery yields administrative reach across the managed fabric.

Critical Impact
An attacker with knowledge of the hardcoded JWT signing key can spoof administrator sessions on RND, leading to full compromise of confidentiality, integrity, and availability of the managed network infrastructure.

Affected Products

CommScope RUCKUS Network Director versions prior to 4.5
Deployments using the bundled default JWT signing secret
Managed RUCKUS wireless and switching environments reachable via the RND management interface

Discovery Timeline

2025-08-04 - CVE-2025-44963 published to NVD
2025-11-03 - Last updated in NVD database
Coordinated disclosure tracked by Claroty Team82 and CERT/CC under VU#613753

Technical Details for CVE-2025-44963

Vulnerability Analysis

The vulnerability stems from RUCKUS Network Director embedding a static, hardcoded secret in the application binary or configuration. RND uses this secret as the HMAC key when signing and validating JWTs that authenticate API and web console sessions. Because the value is identical across every deployment of the affected releases, it is not a per-tenant or per-install secret.

An attacker who recovers the key — through binary analysis, leaked images, prior research disclosure, or shared installer artifacts — can craft a JWT with arbitrary claims. By setting the user identity and role claims to those of an administrator, the attacker produces a token that RND accepts as authentic. No password, multi-factor prompt, or session handshake is required. The attack is described in the Claroty Team82 disclosure and the CommScope Security Advisory FAQ #20250710.

Root Cause

The root cause is the use of a hardcoded cryptographic key [CWE-321] for token signing. Secure JWT deployments require per-instance, high-entropy secrets generated at install time and stored outside the application package. RND instead reuses a shared value, collapsing the trust boundary between all installations of the same version.

Attack Vector

The attack vector is network-based and requires reachability to the RND management interface. An attacker connects to the HTTPS endpoint, presents a self-issued JWT signed with the known secret, and receives an authenticated administrator session. From there the attacker can modify network policy, exfiltrate configuration and telemetry, push firmware, or disable services on managed RUCKUS devices.

No verified public exploit code is available. The vulnerability is described in prose only; see the vendor and CERT/CC references for technical specifics.

Detection Methods for CVE-2025-44963

Indicators of Compromise

Administrative API or console logins originating from unexpected source addresses, especially outside maintenance windows
JWTs presented to RND with anomalous iat, exp, or iss claim values relative to the deployment baseline
New administrator accounts, role changes, or policy modifications without a corresponding change ticket
Outbound configuration exports or firmware uploads triggered from sessions lacking a prior interactive login event

Detection Strategies

Inspect RND access and audit logs for authenticated sessions that have no preceding /login or password validation event
Compare JWT kid and signing metadata against tokens issued by a known-good RND 4.5+ reference instance
Alert on administrative actions performed from IP ranges not previously associated with operator accounts
Correlate management-plane logins with VPN, jump host, and identity provider telemetry to surface tokens issued outside the normal authentication path

Monitoring Recommendations

Forward RND audit logs to a SIEM and retain at least 90 days of authentication and configuration-change events
Enable network flow logging on the RND management VLAN to capture all sources contacting the API
Monitor for unusual east-west connections from RND to managed access points and switches outside scheduled provisioning windows

How to Mitigate CVE-2025-44963

Immediate Actions Required

Upgrade RUCKUS Network Director to version 4.5 or later, which replaces the hardcoded JWT secret with a per-install generated key
Restrict network access to the RND management interface to a dedicated administration network or jump host
Invalidate existing administrator sessions and rotate all administrator credentials after upgrade
Review audit logs from the affected window for unauthorized configuration changes or account creation

Patch Information

CommScope addresses the issue in RUCKUS Network Director 4.5. Refer to the CommScope Security Advisory FAQ #20250710 for the authoritative fixed version, upgrade procedure, and any required post-upgrade key rotation steps. Additional coordination details are published in CERT/CC VU#613753.

Workarounds

Place RND behind a reverse proxy or firewall that enforces source IP allowlisting until the upgrade can be scheduled
Require VPN plus multi-factor authentication for any operator reaching the RND management network
Disable or block external exposure of the RND web and API ports, limiting them to internal management subnets only

bash

# Example: restrict RND management access to an admin subnet (iptables)
iptables -A INPUT -p tcp --dport 443 -s 10.10.50.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP