CVE-2025-25039: ClearPass Policy Manager RCE Vulnerability

CVE-2025-25039 Overview

CVE-2025-25039 is an authenticated command injection vulnerability in the web-based management interface of HPE Aruba Networking ClearPass Policy Manager (CPPM). A remote authenticated user can inject operating system commands that execute on the underlying host. Successful exploitation runs arbitrary commands as a lower-privileged user on the underlying operating system, providing a foothold for further attacks against the policy enforcement infrastructure. The flaw is tracked under [CWE-78] (Improper Neutralization of Special Elements used in an OS Command). HPE published a security bulletin addressing the issue on February 4, 2025.

Critical Impact
An authenticated attacker can execute arbitrary OS commands on ClearPass Policy Manager, compromising the confidentiality, integrity, and availability of network access control infrastructure.

Affected Products

HPE Aruba Networking ClearPass Policy Manager (CPPM)
ClearPass Policy Manager web-based management interface
Refer to the HPE security bulletin for the full list of affected versions

Discovery Timeline

2025-02-04 - CVE-2025-25039 published to NVD
2025-02-04 - HPE publishes security bulletin hpesbnw04784en_us
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-25039

Vulnerability Analysis

The vulnerability resides in the web-based management interface of ClearPass Policy Manager. The interface passes user-supplied input into operating system command execution functions without proper neutralization. An authenticated user can craft input containing shell metacharacters that the application interprets and executes on the host.

ClearPass Policy Manager enforces network access control across wired, wireless, and VPN environments. Command execution on this appliance exposes RADIUS, TACACS+, certificate, and policy data central to enterprise authentication workflows. The attacker gains a shell as a lower-privileged user, which can serve as a launching point for privilege escalation or lateral movement.

The attack requires network reachability to the management interface and valid credentials with low privileges. No user interaction is required to trigger the flaw once an authenticated session exists.

Root Cause

The root cause is improper neutralization of special elements used in an OS command [CWE-78]. The application constructs OS-level command strings using user-controlled data without sanitizing shell metacharacters such as ;, |, &, backticks, or $() substitutions. When the resulting string reaches a shell interpreter, attacker-supplied tokens execute as separate commands.

Attack Vector

The attack vector requires an authenticated session against the web-based management interface. The attacker submits a crafted request to a vulnerable endpoint, embedding shell metacharacters in a parameter that flows into a command invocation. The injected payload executes in the context of the web service account on the appliance. From there, the attacker can read configuration files, harvest credentials cached on the appliance, or pivot toward higher-privileged accounts. Refer to the HPE Security Bulletin for vendor-confirmed technical details.

Detection Methods for CVE-2025-25039

Indicators of Compromise

Unexpected child processes spawned by the ClearPass web service account (for example, sh, bash, wget, curl, nc).
HTTP requests to the ClearPass management interface containing shell metacharacters such as ;, |, &&, backticks, or $() in parameter values.
Outbound network connections originating from the ClearPass appliance to non-administrative destinations.
Modifications to system binaries, cron entries, or startup scripts on the CPPM host.

Detection Strategies

Inspect web server and application logs for parameter values containing command separators or encoded equivalents (%3B, %7C, %26).
Correlate authenticated administrative sessions with subsequent process creation events on the appliance.
Alert on any interactive shell process running under the ClearPass web service user.

Monitoring Recommendations

Forward ClearPass syslog and audit data to a centralized SIEM and retain it for forensic review.
Monitor for anomalous administrative logins, especially from unexpected source addresses or outside maintenance windows.
Track outbound DNS and HTTP traffic from the CPPM appliance to identify staging or callback activity.

How to Mitigate CVE-2025-25039

Immediate Actions Required

Apply the fixed ClearPass Policy Manager version listed in HPE bulletin hpesbnw04784en_us as soon as possible.
Restrict access to the ClearPass web-based management interface to dedicated administrative networks.
Rotate credentials for any account with access to the management interface, and audit recent administrative activity.
Review accounts on the appliance and remove unused or excessive low-privilege users.

Patch Information

HPE released fixed versions of ClearPass Policy Manager addressing CVE-2025-25039. The vendor advisory is published at HPE Security Bulletin hpesbnw04784en_us. Administrators should consult the bulletin for exact patched versions, upgrade procedures, and any prerequisite steps before applying the update.

Workarounds

Limit management interface exposure to a hardened jump host or out-of-band management VLAN.
Enforce multi-factor authentication for all ClearPass administrative accounts to reduce the risk of credential-based access.
Apply the principle of least privilege to operator and read-only roles, removing access for accounts that do not require it.
Place the management interface behind a web application firewall that filters shell metacharacters in request parameters until patching is complete.

bash

# Example: restrict access to the ClearPass management interface using iptables
iptables -A INPUT -p tcp --dport 443 -s 10.10.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP