CVE-2025-0456: NetVision airPASS Auth Bypass Vulnerability

CVE-2025-0456 Overview

CVE-2025-0456 is a critical Missing Authentication vulnerability affecting the airPASS product from NetVision Information. This vulnerability allows unauthenticated remote attackers to access specific administrative functionality to retrieve all accounts and passwords from the affected system. The flaw stems from CWE-306 (Missing Authentication for Critical Function), where a critical administrative endpoint lacks proper authentication controls.

Critical Impact

Unauthenticated attackers can remotely access administrative functionality and extract all user credentials, leading to complete compromise of authentication systems and potential lateral movement across networks.

Affected Products

• NetVision Information airPASS

Discovery Timeline

• 2025-01-16 - CVE-2025-0456 published to NVD
• 2025-01-16 - Last updated in NVD database

Technical Details for CVE-2025-0456

Vulnerability Analysis

This vulnerability represents a fundamental authentication bypass flaw in the NetVision airPASS system. The affected administrative functionality fails to verify whether incoming requests originate from authenticated users before processing sensitive operations. As a result, any remote attacker with network access to the vulnerable endpoint can directly invoke administrative functions designed to manage user credentials.

The vulnerability is classified under CWE-306 (Missing Authentication for Critical Function), which describes scenarios where an application does not perform authentication for functionality that requires a provable user identity or consumes significant resources. In this case, the credential retrieval functionality is exposed without any authentication gate.

Root Cause

The root cause of CVE-2025-0456 is the absence of authentication checks on administrative endpoints within the airPASS application. The specific functionality responsible for managing and retrieving user accounts and passwords does not enforce any authentication mechanism, allowing direct access from unauthenticated remote sources. This design flaw enables attackers to bypass normal access controls entirely.

Attack Vector

The attack vector for this vulnerability is network-based, requiring no user interaction or special privileges. An attacker can remotely access the vulnerable administrative endpoint over the network without providing any credentials. The exploitation path involves:

1. Identifying the airPASS system on the target network
2. Locating the exposed administrative endpoint
3. Sending crafted requests to the endpoint without authentication
4. Retrieving all user accounts and passwords from the system response

The vulnerability requires no special prerequisites—any network-accessible attacker can exploit this flaw to obtain complete credential dumps from the affected system.

Detection Methods for CVE-2025-0456

Indicators of Compromise

• Unexpected HTTP requests to administrative endpoints from external or unauthorized IP addresses
• Unusual access patterns to credential management functions outside normal administrative hours
• Network traffic to airPASS administrative interfaces from unauthenticated sources
• Log entries showing administrative function calls without corresponding authentication events

Detection Strategies

• Monitor network traffic for unauthenticated requests targeting airPASS administrative endpoints
• Implement intrusion detection rules to flag credential retrieval attempts without prior authentication
• Deploy web application firewalls (WAF) to detect and block suspicious administrative endpoint access patterns
• Establish baseline behavior for administrative function usage and alert on anomalies

Monitoring Recommendations

• Enable comprehensive logging on the airPASS system for all administrative function access attempts
• Configure SIEM alerts for any access to sensitive administrative endpoints without authenticated sessions
• Monitor for data exfiltration patterns that may indicate credential dumps being transferred off-network
• Review authentication logs regularly for missing entries that should correlate with administrative actions

How to Mitigate CVE-2025-0456

Immediate Actions Required

• Restrict network access to the airPASS administrative interface to trusted IP addresses only
• Implement network segmentation to isolate the airPASS system from untrusted network segments
• Deploy a web application firewall to block unauthenticated requests to administrative endpoints
• Rotate all credentials stored in the airPASS system as a precautionary measure
• Monitor for signs of exploitation using the detection methods outlined above

Patch Information

Organizations should consult the official security advisories from TW-CERT for patch availability and remediation guidance. Technical details and vendor response information can be found in the TW-CERT Security Advisory and the TW-CERT Security Notice. Contact NetVision Information directly for specific patch releases or firmware updates addressing this vulnerability.

Workarounds

• Implement IP-based access control lists (ACLs) to limit administrative endpoint access to authorized management networks only
• Deploy a reverse proxy with authentication enforcement in front of the airPASS administrative interface
• Disable or restrict the vulnerable administrative functionality until a patch is available
• Enable additional logging and monitoring to detect any exploitation attempts during the interim period

# Example network access restriction (firewall rule concept)
# Restrict access to airPASS admin interface to trusted management subnet only
# Replace with appropriate firewall syntax for your environment

# iptables example - allow only trusted management network
iptables -A INPUT -p tcp --dport 443 -s 10.0.100.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP