CVE-2025-32985

Executive Summary

CVE-2025-32985 discloses a critical security vulnerability in NETSCOUT nGeniusONE, a network performance monitoring and diagnostics platform. The vulnerability is due to the presence of hardcoded credentials embedded within the application's JAR files. An attacker who can extract these JAR files (e.g., through file read access, decompilation, or by obtaining a copy of the software) can retrieve static, unchanging credentials. These credentials could then be used to gain unauthorized access to the nGeniusONE system, potentially leading to full system compromise, data exfiltration, or lateral movement within the network.

The vulnerability is classified under CWE-798 (Use of Hard-coded Credentials). The CVSS score is currently listed as 0.0, likely due to incomplete scoring data, but the inherent risk is high. The vendor, NETSCOUT, has released a patched version (6.4.0 b2350) to address this issue. No public proof-of-concept (PoC) exploit code or Nuclei templates are available at this time.

Supply Chain & Package Security

This vulnerability is not related to a package manager (NPM, PyPI, Go, Ruby) but is a direct software supply chain risk. The hardcoded credentials are embedded in the vendor's proprietary JAR files, meaning any organization using an affected version of nGeniusONE is at risk. The integrity of the software distribution channel is critical; organizations must ensure they obtain the patched version directly from NETSCOUT.

CVSS Breakdown & Threat Level

While the official CVSS vector is unknown, a reasonable assessment based on the vulnerability type is:

• Attack Vector (AV): Network (The credentials can be used over the network)
• Attack Complexity (AC): Low (Extracting JAR files is trivial)
• Privileges Required (PR): None (No authentication needed to extract the JAR)
• User Interaction (UI): None
• Scope (S): Unchanged
• Confidentiality (C): High (Full system access possible)
• Integrity (I): High (Full system control possible)
• Availability (A): High (Denial of service possible)

Estimated CVSS v3.1 Score: 9.8 (Critical)

Threat Level: Critical. The presence of hardcoded credentials in a network monitoring tool is a severe risk, as it can provide an attacker with a privileged foothold in the network.

Deep Dive & Mechanics

The vulnerability stems from a fundamental security anti-pattern: embedding authentication secrets directly into application code. In this case, the credentials are stored within JAR (Java ARchive) files, which are essentially ZIP files containing compiled Java classes and resources.

Mechanics:

1. Credential Storage: The nGeniusONE application, during its build process, includes a set of credentials (username/password or API keys) directly in a configuration file or Java class within a JAR file.
2. Extraction: An attacker can obtain these JAR files through various means:
   • Direct Access: If the attacker has any form of file read access to the server (e.g., via another vulnerability, misconfigured web server, or insider threat).
   • Software Distribution: If the attacker can obtain a legitimate copy of the software installer (e.g., from a compromised download server or a physical copy).
   • Decompilation: Using tools like jadx or procyon to decompile the Java classes and read the hardcoded strings.
3. Exploitation: Once the credentials are extracted, the attacker can use them to authenticate to the nGeniusONE web interface, API, or backend services. This grants them the privileges associated with that account, which is often an administrative or highly privileged user.

Vulnerable vs. Patched Code

The vulnerable code is not publicly available, but the fix is conceptually straightforward.

Vulnerable Code (Conceptual):

// In a configuration class or properties file
public class AppConfig {
    public static final String ADMIN_USER = "admin";
    public static final String ADMIN_PASS = "P@ssw0rd123!"; // Hardcoded!
}

Patched Code (Conceptual): The patched version removes the hardcoded credentials and implements a secure credential management system. This could involve:

• Externalized Configuration: Reading credentials from a secure external source (e.g., environment variables, a secrets manager like HashiCorp Vault, or a dedicated configuration file with restricted permissions).
• Dynamic Credential Generation: Using a one-time setup process where the administrator is forced to change the default credentials upon first login.
• Integration with Identity Providers: Using LDAP, Active Directory, or SAML for authentication, eliminating the need for local hardcoded accounts.

// In a configuration class
public class AppConfig {
    public static final String ADMIN_USER = System.getenv("NGENIUS_ADMIN_USER");
    public static final String ADMIN_PASS = System.getenv("NGENIUS_ADMIN_PASS");
}

Exploitation & Lab Setup

Red Team

Objective: Extract hardcoded credentials from a vulnerable nGeniusONE installation and use them to gain administrative access.

Lab Setup:

1. Target: A virtual machine running a vulnerable version of nGeniusONE (e.g., 6.4.0 b2349).
2. Attacker: Kali Linux VM.

Steps:

1. Identify JAR Files: Locate the nGeniusONE installation directory (e.g., /opt/netscout/ngeniusone/). Identify JAR files that might contain configuration data (e.g., server.jar, webapp.war).
2. Extract JAR: Use unzip or jar to extract the contents.

   unzip -d extracted_jar server.jar
   

3. Search for Credentials: Use grep to search for common patterns.

   grep -r -i "password" extracted_jar/
   grep -r -i "username" extracted_jar/
   grep -r -i "jdbc:mysql" extracted_jar/
   

4. Decompile (if needed): If the credentials are in compiled classes, use a decompiler.

   jadx -d decompiled extracted_jar/com/netscout/config/AppConfig.class
   cat decompiled/com/netscout/config/AppConfig.java
   

5. Authenticate: Use the extracted credentials to log in to the nGeniusONE web interface (typically on port 443 or 8443).

   curl -k -X POST -d "username=admin&password=P@ssw0rd123!" https://target.ngeniusone.com/login
   

Blue Team

Objective: Detect and respond to exploitation attempts.

Detection Steps:

1. Monitor for JAR Extraction: Alert on processes like unzip, jar, or 7z being executed on the nGeniusONE server, especially by non-administrative users.
2. Monitor for Decompilation Tools: Alert on the presence or execution of tools like jadx, procyon, or cfr.
3. Monitor for Unauthorized Access: Alert on successful logins from unexpected IP addresses or at unusual times. Monitor for failed login attempts followed by a successful login (indicating credential stuffing).
4. File Integrity Monitoring (FIM): Monitor the nGeniusONE installation directory for unauthorized file access or modification.

Indicators of Compromise (IOCs)

• File Hashes (SHA256): (Hypothetical - replace with actual hashes if available)
  • server.jar: a1b2c3d4e5f6...
  • webapp.war: f6e5d4c3b2a1...
• Network Indicators:
  • Unusual outbound connections from the nGeniusONE server to unknown IPs.
  • Login attempts to the nGeniusONE web interface from IPs not in the allowed list.
• Process Indicators:
  • Execution of unzip, jar, jadx, or strings on the nGeniusONE server.
• Log Indicators:
  • Successful login events for the hardcoded account (e.g., admin) from unexpected sources.
  • grep or find commands searching for password patterns in system logs.

Detection Engineering

YARA Rule

rule Detect_Hardcoded_Credentials_nGeniusONE {
    meta:
        description = "Detects JAR files containing hardcoded credentials for NETSCOUT nGeniusONE"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-32985"
    strings:
        $credential1 = "P@ssw0rd123!" ascii wide nocase
        $credential2 = "admin" ascii wide nocase
        $credential3 = "jdbc:mysql://" ascii wide nocase
        $jar_header = { 50 4B 03 04 } // ZIP header for JAR files
    condition:
        $jar_header at 0 and (any of ($credential*))
}

Sigma Rule

title: Potential Exploitation of Hardcoded Credentials in nGeniusONE
id: 8a9b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d
status: experimental
description: Detects attempts to extract JAR files or use decompilation tools on a nGeniusONE server.
author: Valters IT
date: 2025-04-10
logsource:
    category: process_creation
    product: windows
detection:
    selection_extract:
        Image|endswith:
            - '\unzip.exe'
            - '\jar.exe'
            - '\7z.exe'
        CommandLine|contains:
            - 'ngeniusone'
            - 'server.jar'
            - 'webapp.war'
    selection_decompile:
        Image|endswith:
            - '\jadx.exe'
            - '\procyon.exe'
            - '\cfr.jar'
    condition: 1 of selection_*
falsepositives:
    - Legitimate administrative activity
level: high

Suricata Rule

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"CVE-2025-32985 - Potential nGeniusONE Credential Exfiltration"; flow:to_server,established; content:"POST"; http_method; content:"/login"; http_uri; content:"username=admin"; http_client_body; content:"password="; http_client_body; distance:0; within:100; classtype:attempted-admin; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Upgrade: Immediately upgrade to nGeniusONE version 6.4.0 b2350 or later. This is the only definitive fix.
2. Isolate: If an immediate upgrade is not possible, isolate the affected nGeniusONE server from the network to prevent external exploitation.
3. Change Credentials: If the hardcoded credentials are known, immediately change them in the application's configuration (if possible) and rotate any other credentials that may have been exposed.

Long-Term Mitigations:

1. Network Segmentation: Place nGeniusONE in a secure, segmented network zone with strict access controls.
2. Multi-Factor Authentication (MFA): Implement MFA for all administrative access to nGeniusONE.
3. Regular Audits: Conduct regular security audits and code reviews to identify and eliminate hardcoded secrets.
4. Secrets Management: Use a dedicated secrets management solution (e.g., HashiCorp Vault, AWS Secrets Manager) to store and rotate credentials.
5. Monitor for IOCs: Implement the detection rules provided in this report.

Valters IT