CVE-2014-2179 in VPN Router
Summary
by MITRE
The Cisco RV router firmware on RV220W devices, before 1.0.5.9 on RV120W devices, and before 1.0.4.14 on RV180 and RV180W devices allows remote attackers to upload files to arbitrary locations via a crafted HTTP request, aka Bug ID CSCuh86998.
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Analysis
by VulDB Data Team • 06/11/2017
The vulnerability identified as CVE-2014-2179 represents a critical file upload flaw affecting Cisco RV series routers including RV220W, RV120W, RV180, and RV180W models. This vulnerability resides within the firmware implementations of these network devices, specifically in their handling of HTTP requests. The flaw enables remote attackers to execute arbitrary file uploads to locations within the device filesystem without proper authentication or authorization, creating a significant security risk for organizations relying on these networking appliances.
The technical implementation of this vulnerability stems from inadequate input validation and access control mechanisms within the web-based management interface of affected Cisco routers. Attackers can craft specially formatted HTTP requests that bypass normal file upload restrictions and permissions checks. This allows malicious actors to place potentially harmful files such as web shells, malware, or configuration scripts at arbitrary locations within the router's file system. The vulnerability manifests through the device's HTTP server component which fails to properly validate file paths and permissions during upload operations, enabling path traversal and unauthorized file placement.
The operational impact of this vulnerability extends far beyond simple unauthorized file placement, as it provides attackers with a potential foothold for further compromise of the network infrastructure. Once successful, attackers can execute arbitrary code on the affected devices, potentially leading to complete device takeover, network infiltration, or disruption of network services. The vulnerability affects multiple Cisco router models across different generations, indicating a systemic flaw in the firmware implementation that requires immediate attention from network administrators. Organizations with these devices in their network infrastructure face significant risk of unauthorized access, data exfiltration, and potential lateral movement within their networks.
Mitigation strategies for CVE-2014-2179 should prioritize immediate firmware updates to the latest available versions that address the identified vulnerability. Cisco released patches for affected models in their security advisories, and administrators should verify their device firmware versions and apply updates promptly. Network segmentation and access control measures should be implemented to limit access to router management interfaces, while disabling unnecessary services and ports. Monitoring network traffic for suspicious HTTP requests and implementing intrusion detection systems can help identify exploitation attempts. The vulnerability aligns with CWE-434 which describes insecure file upload vulnerabilities, and represents a technique commonly used in the initial access phase of attacks as documented in MITRE ATT&CK framework under initial access tactics. Regular security assessments and network monitoring should be conducted to ensure continued protection against similar vulnerabilities in network infrastructure devices.