CVE-2015-0584 in Desktop Collaboration Experience Dx650
Summary
by MITRE
The image-upgrade implementation on Cisco Desktop Collaboration Experience (aka Collaboration Desk Experience or DX) DX650 endpoints allows local users to execute arbitrary OS commands via an unspecified parameter, aka Bug ID CSCus38947.
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Analysis
by VulDB Data Team • 04/13/2018
The vulnerability identified as CVE-2015-0584 affects Cisco Desktop Collaboration Experience endpoints, specifically the DX650 model, where a command injection flaw exists within the image-upgrade implementation. This vulnerability represents a critical security weakness that enables local attackers to execute arbitrary operating system commands on affected devices. The flaw stems from insufficient input validation during the image upgrade process, allowing malicious actors to inject command parameters that bypass normal security controls. The vulnerability is categorized under CWE-77 as "Improper Neutralization of Special Elements used in a Command," which directly relates to command injection attacks where user-supplied data is improperly handled within command execution contexts.
The operational impact of this vulnerability extends beyond simple privilege escalation as it provides attackers with complete control over the affected endpoint's operating system. Local users who can access the device can leverage this flaw to execute arbitrary code with the privileges of the affected service or user account. The attack surface is particularly concerning given that the vulnerability exists within the image upgrade functionality, which is typically a critical maintenance operation that requires elevated privileges. This means that an attacker who gains local access to the device can potentially compromise the entire collaboration environment by executing malicious commands that may include disabling security features, installing backdoors, or exfiltrating sensitive data.
Security researchers have documented that exploitation of this vulnerability can lead to complete system compromise of the affected Cisco DX650 endpoints. The attack vector requires local access to the device, which makes it somewhat less accessible than remote vulnerabilities but still poses significant risk in environments where physical access control is inadequate. The vulnerability aligns with ATT&CK technique T1059.001 for Command and Scripting Interpreter, specifically focusing on the execution of OS commands through legitimate system interfaces. Organizations should consider implementing robust access controls and monitoring for unusual command execution patterns on collaboration endpoints. The remediation process involves applying Cisco's security patches and updates, which address the input validation issues within the image upgrade implementation and prevent command injection attacks. Network segmentation and privilege separation measures can help reduce the potential impact if local access is compromised, while regular security assessments should verify that the vulnerability has been properly addressed. This vulnerability demonstrates the importance of secure coding practices in firmware and system components, particularly those handling administrative functions like software upgrades, as these components often operate with elevated privileges and present attractive targets for attackers seeking persistent access to networked devices.