CVE-2023-6794 is an arbitrary file upload vulnerability in Palo Alto Networks PAN-OS software that allows an authenticated read-write administrator with access to the web interface to disrupt system processes and potentially execute arbitrary code with limited privileges on the firewall. This vulnerability has been classified with a CVSS score of 5.5, indicating a medium severity level.
The risk to organizations includes unauthorized access to system processes and potential execution of malicious code, leading to compromised firewall integrity. Given the nature of this vulnerability, it is critical for organizations to assess their exposure and implement necessary countermeasures.
Currently, there are no known public exploits associated with this vulnerability, but its potential impact underscores the need for immediate attention. Organizations should prioritize patching immediately.
The vulnerability was published on December 13, 2023, and organizations using affected versions of PAN-OS are urged to remediate this vulnerability promptly.
Vulnerability Details
The description of CVE-2023-6794 states that an arbitrary file upload vulnerability in Palo Alto Networks PAN-OS software enables an authenticated read-write administrator with access to the web interface to disrupt system processes and potentially execute arbitrary code with limited privileges on the firewall. This is classified under CWE-434.
The CVSS score for this vulnerability is 5.5, indicating a medium severity. The attack vector is NETWORK, the attack complexity is LOW, and it requires HIGH privileges. User interaction is not required, and the confidentiality impact is HIGH, while integrity impact is LOW, and availability impact is NONE.
Technical Analysis
The root cause of this vulnerability lies in the insufficient validation of file uploads, which allows authenticated users to upload files that can disrupt system processes. The attack vector is primarily through the network, and the attack complexity is low, making it easier for potential attackers to exploit this vulnerability if they have the required access.
This vulnerability requires high privileges to exploit, restricting it to authenticated administrators. However, the lack of user interaction required makes it more susceptible to exploitation by those with access.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2023-6794 is significant. Attackers who exploit this vulnerability could potentially disrupt critical system processes and execute arbitrary code, leading to unauthorized access and control over the firewall. The blast radius could affect not only the affected devices but also the broader network infrastructure.
Given the CVSS score of 5.5, this vulnerability should be addressed in the priority patch cycle. Organizations should conduct a thorough assessment of their systems and prioritize applying patches to mitigate potential risks.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of PAN-OS are affected by CVE-2023-6794: versions 8.1.0 through 8.1.25, 9.0.0 through 9.0.16, and 9.1.0 through 9.1.13. Organizations should update to the latest version to mitigate the risk.
Mitigation & Remediation
To mitigate the risk associated with CVE-2023-6794, organizations should apply the available patches from Palo Alto Networks. If patches are not immediately available, organizations should consider implementing workarounds such as restricting access to the web interface to only trusted administrators.
Configuration hardening and regular security audits can further reduce the risk of exploitation. Organizations may also benefit from engaging in penetration testing to identify similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual file upload activities. Behavioral anomalies related to unauthorized access attempts on the web interface can also indicate potential exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2023-6794 highlights the ongoing risk associated with web application vulnerabilities, especially those allowing file uploads. Security teams must remain vigilant and apply best practices to prevent similar vulnerabilities in the future. For additional insights, organizations can refer to our resource on penetration testing methodology and vulnerability management programs to strengthen their security posture.
Additionally, organizations should consider exploring our API penetration testing guide to address potential vulnerabilities effectively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)