CVE-2020-2014 in PAN-OS
Summary
by MITRE
An OS Command Injection vulnerability in PAN-OS management server allows authenticated users to inject and execute arbitrary shell commands with root privileges. This issue affects: All versions of PAN-OS 7.1 and 8.0; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.7.
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Analysis
by VulDB Data Team • 10/17/2020
The vulnerability identified as CVE-2020-2014 represents a critical operating system command injection flaw within Palo Alto Networks PAN-OS management servers. This security weakness enables authenticated attackers to execute arbitrary shell commands with root privileges, fundamentally compromising the integrity and confidentiality of network security infrastructure. The vulnerability specifically targets Palo Alto Networks firewalls and next-generation firewalls that operate on the affected PAN-OS versions, creating a significant risk for organizations relying on these security devices for network protection.
The technical nature of this flaw stems from insufficient input validation and sanitization within the PAN-OS management server components. When authenticated users submit malicious input through specific management interfaces, the system fails to properly escape or filter command arguments, allowing attackers to inject OS-level commands that execute with elevated privileges. This command injection occurs at the operating system level, bypassing typical application-layer security controls and directly compromising the underlying host system. The vulnerability maps to CWE-77 which specifically addresses command injection flaws where user-controllable data is passed to system commands without proper validation or sanitization.
The operational impact of this vulnerability extends far beyond simple privilege escalation, as it provides attackers with complete administrative control over affected PAN-OS devices. An attacker with valid credentials can leverage this flaw to execute arbitrary commands, potentially leading to complete system compromise, data exfiltration, or lateral movement within the network. The fact that this vulnerability affects multiple PAN-OS versions including 7.1, 8.0, 8.1 (pre-8.1.14), and 9.0 (pre-9.0.7) creates widespread exposure across enterprise environments that may have legacy deployments or delayed patch management processes. Organizations running these vulnerable versions face significant risk of unauthorized access to their network security controls, potentially enabling attackers to modify firewall rules, disable security features, or establish persistent backdoors.
Mitigation strategies for CVE-2020-2014 require immediate patching of affected PAN-OS versions to the recommended secure releases, specifically PAN-OS 8.1.14, 9.0.7, and later versions. Network administrators should also implement additional defensive measures including strict access controls, monitoring for unusual command execution patterns, and network segmentation to limit the potential impact of successful exploitation. Organizations should conduct comprehensive vulnerability assessments to identify all affected devices and establish monitoring procedures for detecting unauthorized command execution attempts. The ATT&CK framework categorizes this vulnerability under T1059.001 for command and scripting interpreter, highlighting the attack surface created by this flaw. Additionally, organizations should review their incident response procedures to ensure readiness for potential exploitation attempts and consider implementing security information and event management systems that can detect anomalous command execution patterns indicative of this specific vulnerability.