CVE-2016-7089 in Rapidstream
Summary
by MITRE
WatchGuard RapidStream appliances allow local users to gain privileges and execute arbitrary commands via a crafted ifconfig command, aka ESCALATEPLOWMAN.
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Analysis
by VulDB Data Team • 11/30/2024
The CVE-2016-7089 vulnerability affects WatchGuard RapidStream appliances and represents a critical local privilege escalation flaw that enables attackers with low-privilege access to elevate their privileges and execute arbitrary commands on the affected system. This vulnerability specifically leverages a crafted ifconfig command to achieve unauthorized privilege escalation, earning it the alias ESCALATEPLOWMAN. The flaw exists within the appliance's handling of network configuration commands, where insufficient input validation and privilege checking mechanisms allow local users to manipulate system operations through carefully constructed command parameters. This represents a classic privilege escalation vulnerability that undermines the fundamental security boundaries of the appliance.
The technical implementation of this vulnerability stems from improper privilege validation within the ifconfig command processing functionality of the WatchGuard RapidStream appliance. When a local user executes a crafted ifconfig command, the system fails to properly verify the user's privileges before executing potentially dangerous operations. This flaw typically occurs in systems where the command processing logic does not adequately distinguish between legitimate administrative operations and maliciously crafted commands that could be used to bypass security controls. The vulnerability aligns with CWE-269 Improper Privilege Management, which specifically addresses insufficient checks for proper privileges when performing sensitive operations. The attack vector requires local access to the system, making it particularly concerning for environments where physical or network access might be compromised.
The operational impact of CVE-2016-7089 is severe as it allows attackers to completely compromise the affected appliance and potentially gain access to the broader network infrastructure it protects. Once privileges are escalated, attackers can execute arbitrary commands with elevated privileges, potentially leading to full system compromise, data exfiltration, or use of the appliance as a pivot point for further attacks within the network. This vulnerability particularly affects organizations relying on WatchGuard appliances for network security, as these devices often serve as critical security gateways. The impact extends beyond the immediate appliance to potentially compromise network monitoring capabilities, firewall rules, and other security functions that the appliance manages. From an ATT&CK framework perspective, this vulnerability maps to T1068 Privilege Escalation and T1059 Command and Scripting Interpreter, as it allows for both privilege escalation and execution of arbitrary commands through system interfaces.
Organizations should immediately implement mitigations including applying the vendor-provided security patches and updates released for this vulnerability. System administrators should also conduct thorough security assessments to identify any potential exploitation attempts and monitor for unusual command execution patterns that might indicate exploitation. Additional mitigations include implementing proper access controls to limit local user access to system commands, disabling unnecessary administrative functions, and deploying network monitoring solutions to detect suspicious command execution patterns. The vulnerability demonstrates the critical importance of proper privilege management and input validation in network security appliances, as even local access can be leveraged to achieve complete system compromise. Regular security audits and vulnerability assessments should be conducted to identify similar privilege escalation flaws in other network security devices and ensure comprehensive protection against such attacks.