CVE-2012-6595 in PAN-OS
Summary
by MITRE
The device-management command-line interface in Palo Alto Networks PAN-OS 4.0.x before 4.0.9 and 4.1.x before 4.1.2 allows remote authenticated administrators to execute arbitrary commands via unspecified vectors, aka Ref ID 34595.
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Analysis
by VulDB Data Team • 10/06/2018
The vulnerability identified as CVE-2012-6595 represents a critical command injection flaw within the device-management command-line interface of Palo Alto Networks PAN-OS operating system versions 4.0.x prior to 4.0.9 and 4.1.x prior to 4.1.2. This security weakness specifically targets authenticated administrative users who possess valid credentials to access the system's command-line interface. The vulnerability stems from insufficient input validation and sanitization mechanisms that fail to properly handle potentially malicious user inputs, creating an avenue for arbitrary code execution. The flaw exists in the way the system processes commands submitted through the management interface, allowing attackers with administrative privileges to inject and execute unauthorized commands on the affected devices. This issue is particularly concerning because it enables authenticated attackers to leverage their existing administrative access to escalate their privileges or execute malicious operations that could compromise the entire network infrastructure.
The technical exploitation of this vulnerability occurs through unspecified vectors that involve manipulation of command-line parameters within the device management interface. Attackers can craft specially formatted inputs that bypass normal validation checks and are subsequently executed by the underlying system shell. This type of vulnerability falls under the CWE-77 category, which encompasses command injection flaws where untrusted data is incorporated into system commands without proper sanitization. The attack vector specifically targets the command-line interface component of PAN-OS, which serves as a critical administrative entry point for network security device management. The vulnerability's impact extends beyond simple command execution as it allows for complete system compromise when combined with valid administrative credentials. The affected versions represent a significant security gap in the PAN-OS platform where input validation mechanisms were insufficient to prevent malicious command injection attempts.
The operational impact of CVE-2012-6595 is severe and far-reaching for organizations relying on Palo Alto Networks firewalls and security appliances. Successful exploitation allows authenticated administrators to execute arbitrary code with the privileges of the management interface, potentially enabling complete system compromise and unauthorized access to sensitive network data. Network defenders face significant challenges in detecting and mitigating this vulnerability due to its nature as an authenticated command injection flaw that operates within legitimate administrative functions. The vulnerability essentially provides a backdoor for malicious actors to bypass normal security controls and execute unauthorized operations on the device. Organizations utilizing affected PAN-OS versions become vulnerable to advanced persistent threats where attackers can establish persistent access, exfiltrate data, or disrupt network operations through the compromised management interface. The threat landscape is particularly dangerous because the vulnerability requires only valid administrative credentials, which are often more readily available than zero-day exploits.
Mitigation strategies for CVE-2012-6595 must prioritize immediate patching of affected PAN-OS versions to the recommended secure releases. Organizations should implement strict access controls and privilege management policies to minimize the risk of unauthorized administrative access. Network segmentation and monitoring of management interface activities can help detect suspicious command execution patterns. The implementation of multi-factor authentication for administrative access provides an additional layer of security that can prevent unauthorized exploitation even if credentials are compromised. Regular security audits and vulnerability assessments should include verification of PAN-OS versions and patch status to ensure compliance with security best practices. The vulnerability also highlights the importance of secure coding practices and input validation in network security devices, as outlined in the ATT&CK framework's command and control techniques. Organizations should also consider implementing network access controls that limit direct administrative access to security appliances and rely on centralized management solutions with proper authentication mechanisms to reduce the attack surface exposed by vulnerable command-line interfaces.