CVE-2025-0108 impacts PaloAlto PAN-OS

CVE-2025-0108 is a high-severity vulnerability affecting Palo Alto Networks PAN-OS software.

Description

CVE-2025-0108 is an authentication bypass vulnerability in the PAN-OS management web interface. This flaw allows an unauthenticated attacker with network access to bypass the authentication required by the PAN-OS management web interface and invoke certain PHP scripts. While this does not enable remote code execution, it can negatively impact the integrity and confidentiality of PAN-OS.

Technical Details

Exploitation Method

An attacker can exploit this vulnerability by:

1. Intercepting Network Traffic: Gaining access to the network traffic directed towards the PAN-OS management web interface.
2. Bypassing Authentication: Exploiting the discrepancy in how the interface’s Nginx and Apache components handle incoming requests, leading to a directory traversal attack.
3. Invoking PHP Scripts: Using the bypass to invoke certain PHP scripts, which can impact the integrity and confidentiality of PAN-OS.

Impact

The successful exploitation of this vulnerability can lead to:

• Integrity and Confidentiality Impact: The attacker can negatively impact the integrity and confidentiality of PAN-OS by invoking PHP scripts.
• Potential for Further Exploitation: While remote code execution is not directly enabled by this vulnerability, it could potentially be combined with other vulnerabilities to achieve more severe outcomes.

CVSS Score and Metrics

• Base Score: 7.8 (High)
• Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
• Attack Vector (AV): Network – The vulnerability can be exploited remotely over a network.
• Attack Complexity (AC): Low – The attack does not require complex conditions to be met.
• Privileges Required (PR): None – The attacker does not need any specific privileges to exploit the vulnerability.
• User Interaction (UI): None – Exploitation does not require any user interaction.
• Scope (S): Unchanged – Exploitation affects only the vulnerable component.
• Confidentiality (C): Low – Exploitation results in limited loss of confidentiality.
• Integrity (I): Low – Exploitation results in limited impact on integrity.
• Availability (A): None – Exploitation does not result in any impact on availability.

Mitigation Measures

To protect against this vulnerability, Palo Alto Networks recommends the following measures:

1. Update PAN-OS Software: Ensure that all affected PAN-OS versions are updated to the latest versions that include patches for this vulnerability.
2. Restrict Management Interface Access: Limit access to the management web interface to trusted internal IP addresses only.
3. Disable or Uninstall OpenConfig Plugin: If not using OpenConfig, disable or uninstall the plugin from PAN-OS instances.
4. Enhance Network Monitoring: Implement continuous monitoring of network traffic to detect and respond to any signs of unauthorized access or suspicious behavior.

Final Thoughts

CVE-2025-0108 is a critical vulnerability that requires immediate attention and remediation. By applying the recommended updates, restricting access to the management interface, and following best security practices, organizations can mitigate the risks associated with this vulnerability and protect their systems from potential exploitation.