CVE-2024-41285 in FW300R
Summary
by MITRE • 08/26/2024
A stack overflow in FAST FW300R v1.3.13 Build 141023 Rel.61347n allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via a crafted file path.
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Analysis
by VulDB Data Team • 08/28/2024
The vulnerability identified as CVE-2024-41285 represents a critical stack overflow condition within the FAST FW300R firmware version 1.3.13 Build 141023 Rel.61347n. This flaw manifests when the system processes a crafted file path, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized control over the affected device. The stack overflow occurs during the handling of file path inputs, where insufficient bounds checking allows malicious data to overwrite adjacent memory locations on the stack. This vulnerability falls under the Common Weakness Enumeration category CWE-121, which specifically addresses stack-based buffer overflow conditions that occur when insufficient bounds checking is performed on buffers allocated on the stack. The flaw is particularly concerning as it exists within network security equipment, specifically a firewall device, making it a prime target for attackers seeking to compromise network perimeters.
The technical implementation of this vulnerability demonstrates how improper input validation can lead to severe operational consequences within embedded systems. When a maliciously crafted file path is submitted to the FAST FW300R device, the firmware fails to properly validate the length or content of the input string before processing it within a stack-based buffer. This allows an attacker to exceed the allocated buffer space and overwrite critical stack memory locations including return addresses, saved registers, and other control data. The exploitation of this condition can result in two primary outcomes: arbitrary code execution or denial of service. The arbitrary code execution capability stems from the ability to overwrite the return address on the stack, potentially redirecting execution flow to malicious code injected by the attacker. This aligns with the attack pattern described in the MITRE ATT&CK framework under technique T1059.007 for command and script interpreter, where attackers can leverage such vulnerabilities to execute malicious commands within the compromised system. The denial of service component occurs when the stack corruption causes the device to crash or become unresponsive, effectively disrupting network security services.
The operational impact of CVE-2024-41285 extends beyond simple system compromise as it directly affects network infrastructure security. Organizations relying on FAST FW300R firewalls for network protection face potential exposure to attackers who can leverage this vulnerability to establish persistent access points within their network perimeters. The device's role as a firewall makes it a critical security component, and its compromise could allow attackers to bypass network security controls, monitor traffic, or launch further attacks against internal systems. The vulnerability's remote exploitability means that attackers do not require physical access to the device, making it particularly dangerous in environments where network security appliances are exposed to external threats. Network administrators must consider the potential for lateral movement within their networks if attackers successfully exploit this vulnerability, as compromised firewalls can provide attackers with privileged access to internal network segments. The impact is further amplified by the fact that this vulnerability exists in a widely deployed security appliance model, potentially affecting numerous organizations across various sectors including financial services, healthcare, and government agencies that rely on such network security infrastructure.
Mitigation strategies for CVE-2024-41285 should prioritize immediate firmware updates from the vendor, as this represents the most effective solution to address the underlying stack overflow condition. Organizations should implement network segmentation and monitoring to detect potential exploitation attempts, particularly focusing on unusual file path access patterns that may indicate attempts to leverage this vulnerability. The implementation of input validation controls at network boundaries can provide additional defense-in-depth measures, though these should not be considered substitutes for proper firmware updates. Security teams should also consider disabling unnecessary file path processing capabilities on affected devices until patches are applied, reducing the attack surface available to potential exploiters. Network traffic monitoring should include inspection of file path parameters in network protocols that might be processed by the affected firewall, as this could provide early detection of exploitation attempts. The vulnerability's classification under CWE-121 and its potential for remote code execution aligns with the ATT&CK technique T1068 for exploit for privilege escalation, making comprehensive incident response planning essential for organizations that may be exposed to this vulnerability. Additionally, organizations should conduct thorough vulnerability assessments of their network security infrastructure to identify other potentially affected devices running similar firmware versions, as this vulnerability may indicate broader issues within the vendor's product line.