CVE-2017-2738 in VCM5010
Summary
by MITRE
VCM5010 with software versions earlier before V100R002C50SPC100 has an authentication bypass vulnerability. This is due to improper implementation of authentication for accessing web pages. An unauthenticated attacker could bypass the authentication by sending a crafted HTTP request. 5010 with software versions earlier before V100R002C50SPC100 has an arbitrary file upload vulnerability. The software does not validate the files that uploaded. An authenticated attacker could upload arbitrary files to the system.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-2738 affects the VCM5010 video communication management device running software versions prior to V100R002C50SPC100. This represents a critical security flaw that compromises the device's authentication mechanisms and file handling capabilities. The vulnerability stems from inadequate security controls within the web interface implementation, creating multiple attack vectors that can be exploited by malicious actors. The affected device operates within enterprise communication environments where video conferencing and collaboration systems are deployed, making it a potentially high-impact target for cyber adversaries seeking to gain unauthorized access to sensitive communication infrastructure.
The authentication bypass vulnerability manifests through improper validation of HTTP requests within the web interface components. This flaw allows unauthenticated attackers to craft specific HTTP requests that circumvent the normal authentication process required to access protected web pages. The vulnerability essentially creates a backdoor access mechanism that bypasses the intended security controls, enabling attackers to gain administrative privileges without providing valid credentials. This type of vulnerability falls under CWE-287 which addresses improper authentication issues in software systems. The attack vector exploits the device's failure to properly validate session tokens or authentication headers, allowing malicious requests to be processed as if they were legitimate administrative operations.
The arbitrary file upload vulnerability presents a separate but equally serious threat within the same software implementation. This flaw occurs because the system lacks proper validation mechanisms for files uploaded through the web interface. An authenticated attacker who has gained initial access to the system can leverage this vulnerability to upload malicious files directly to the device's file system. The consequences of this vulnerability extend beyond simple privilege escalation, as attackers can upload web shells, malware, or other malicious executables that can persist on the device and potentially provide further attack vectors. This vulnerability aligns with CWE-434 which addresses insecure file upload scenarios, where systems fail to validate file types, sizes, or contents before storing them on the server.
The operational impact of these vulnerabilities is significant for organizations relying on VCM5010 devices for their communication infrastructure. Attackers who successfully exploit the authentication bypass can gain full administrative control over the device, potentially enabling them to modify video conference settings, access recorded communications, or redirect traffic to malicious endpoints. The arbitrary file upload capability allows for persistent malware deployment, which can compromise the device's integrity and provide attackers with long-term access to the network. These vulnerabilities directly impact the principles of confidentiality, integrity, and availability as defined by the CIA triad, potentially allowing attackers to exfiltrate sensitive video conference data or disrupt communication services.
Organizations should implement immediate mitigations including upgrading to software versions V100R002C50SPC100 or later where these vulnerabilities have been addressed. Network segmentation and access controls should be strengthened to limit exposure of these devices to untrusted networks. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other networked devices. The ATT&CK framework categorizes these vulnerabilities under privilege escalation and persistence techniques, with the authentication bypass representing a credential access method and the file upload enabling execution and persistence. System administrators should also consider implementing web application firewalls to monitor and filter suspicious HTTP requests that could exploit these vulnerabilities. The affected devices should be isolated from critical network segments until proper security updates are applied and comprehensive security assessments are completed to ensure no compromise has occurred.