CVE-2012-6591 in PAN-OS
Summary
by MITRE
The device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.10 and 4.0.x before 4.0.5 allows remote authenticated administrators to execute arbitrary commands via unspecified vectors, aka Ref ID 31116.
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Analysis
by VulDB Data Team • 10/06/2018
The vulnerability identified as CVE-2012-6591 represents a critical command injection flaw within the device-management command-line interface of Palo Alto Networks PAN-OS operating systems. This vulnerability affects versions prior to 3.1.10 and 4.0.5, creating a significant security risk for organizations relying on Palo Alto firewalls for network protection. The flaw enables remote authenticated administrators to execute arbitrary commands on affected systems, fundamentally undermining the security posture of protected networks. The vulnerability's classification as a command injection issue indicates that malicious actors can leverage the interface to run unauthorized code with the privileges of the authenticated administrator account.
The technical nature of this vulnerability stems from insufficient input validation and sanitization within the command-line interface components of PAN-OS. When authenticated administrators interact with the device management interface, the system fails to properly validate or escape user-supplied input before processing commands. This allows attackers who have already gained administrative credentials to inject malicious commands that bypass normal security controls. The unspecified vectors mentioned in the description suggest that the vulnerability could be exploited through various input points within the CLI, making it particularly challenging to defend against. The flaw aligns with CWE-77 and CWE-94 categories, which specifically address command injection and code injection vulnerabilities that enable arbitrary code execution through improperly validated user inputs.
The operational impact of CVE-2012-6591 extends far beyond simple privilege escalation, as it provides attackers with complete control over affected firewall systems. Once exploited, the vulnerability allows for full system compromise, enabling attackers to modify firewall rules, access network traffic, disable security features, and potentially pivot to other systems within the network. This represents a severe threat to network security infrastructure, as firewalls serve as critical boundary protection mechanisms. The remote nature of the attack means that exploitation can occur from any location with network access, while the requirement for only authenticated administrative credentials makes the vulnerability particularly dangerous within organizations where administrative access is properly managed but not sufficiently secured against insider threats. The attack pattern aligns with ATT&CK techniques involving privilege escalation and command execution, specifically targeting the execution and persistence phases of the cyber kill chain.
Organizations affected by this vulnerability should immediately implement mitigation strategies focusing on patch management and access control measures. The primary remediation involves upgrading PAN-OS to version 3.1.10 or 4.0.5, which contain the necessary security fixes. Additionally, implementing network segmentation and limiting administrative access to only necessary systems can reduce the attack surface. Security monitoring should focus on unusual command execution patterns and unauthorized administrative access attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and implementing proper access controls for administrative interfaces. Organizations should also consider implementing network access controls that restrict administrative access to specific IP addresses and require multi-factor authentication for administrative accounts. The incident highlights the need for regular security assessments and vulnerability management programs to identify and remediate similar issues before they can be exploited by malicious actors.