CVE-2014-2533 in QNX Neutrino RTOS
Summary
by MITRE
/sbin/ifwatchd in BlackBerry QNX Neutrino RTOS 6.4.x and 6.5.x allows local users to gain privileges by providing an arbitrary program name as a command-line argument.
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Analysis
by VulDB Data Team • 05/08/2026
The vulnerability identified as CVE-2014-2533 resides within the /sbin/ifwatchd utility of the BlackBerry QNX Neutrino RTOS versions 6.4.x and 6.5.x. This daemon operates as a network interface monitoring service that automatically executes commands when network interface states change, making it a critical component for system network management. The flaw manifests in the command-line argument processing mechanism where the utility fails to properly validate or sanitize input parameters, creating a privilege escalation vector for local attackers. The vulnerability specifically affects how the ifwatchd daemon handles program names provided through command-line arguments, allowing malicious users to execute arbitrary code with elevated privileges. This represents a significant security weakness in an embedded real-time operating system where network monitoring services are typically designed to run with elevated privileges to perform system-level operations.
The technical implementation of this vulnerability stems from improper input validation within the ifwatchd daemon's argument parsing logic. When the daemon receives command-line arguments, it directly uses the provided program names without adequate sanitization or privilege checks, enabling attackers to manipulate the execution flow. This flaw aligns with CWE-78, which describes improper neutralization of special elements used in OS commands, and CWE-20, which addresses inputs that are not properly sanitized. The vulnerability allows local users to bypass normal access controls by crafting malicious command-line arguments that get executed with the privileges of the ifwatchd process, which typically runs with root or administrative privileges due to its network monitoring responsibilities. The daemon's design assumes trusted input from local users, creating a dangerous trust boundary violation that enables privilege escalation from user-level to system-level access.
From an operational perspective, this vulnerability presents a severe risk to systems running affected QNX Neutrino RTOS versions, particularly in industrial control systems, automotive applications, and embedded devices where network monitoring is critical. The local privilege escalation capability means that any user with access to the system can potentially gain full administrative control without requiring additional authentication or exploitation of other vulnerabilities. This vulnerability is particularly concerning in environments where physical access is possible, as it can be exploited without network connectivity or external attack vectors. The impact extends beyond simple privilege escalation to potentially compromise entire system operations, as the ifwatchd daemon's elevated privileges could enable attackers to modify system configurations, install malicious software, or disable security mechanisms. The vulnerability's exploitation requires minimal technical knowledge, making it accessible to attackers with basic system access and increasing the overall risk to deployed systems.
Mitigation strategies for CVE-2014-2533 should prioritize immediate patching of affected systems with the vendor-provided security updates. Organizations should implement strict access controls limiting local user access to system binaries and monitoring processes, particularly those with elevated privileges. The principle of least privilege should be enforced by reviewing and restricting the permissions of the ifwatchd daemon and its associated processes. System administrators should monitor for unauthorized execution of network monitoring utilities and implement intrusion detection measures to identify potential exploitation attempts. Network segmentation and access controls should be strengthened to limit local user capabilities, while regular security audits should verify that command-line arguments are properly sanitized before execution. Additionally, organizations should consider implementing application whitelisting policies that restrict which programs can be executed by system daemons, reducing the attack surface for this specific vulnerability. The remediation process should include comprehensive testing to ensure that security updates do not introduce compatibility issues with existing network monitoring configurations, while maintaining system operational integrity.