CVE-2017-2737 in VCM5010
Summary
by MITRE
VCM5010 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.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-2737 affects the VCM5010 video communication management device running software versions prior to V100R002C50SPC100. This represents a critical security flaw that undermines the integrity and confidentiality of the affected system. The vulnerability stems from insufficient input validation mechanisms within the file upload functionality, creating an avenue for malicious actors to compromise the device's security posture. The flaw is particularly concerning as it requires only authentication credentials to exploit, making it accessible to both internal and external threat actors who have gained legitimate access to the system.
The technical implementation of this vulnerability resides in the device's failure to properly validate file types and content during the upload process. This weakness allows an authenticated attacker to bypass normal file validation checks and upload malicious files such as web shells, executables, or other harmful payloads. The absence of proper file type filtering, extension validation, and content inspection creates an environment where attackers can upload files with potentially dangerous extensions or content that can be executed within the device's operating environment. According to CWE classification, this vulnerability maps to CWE-434 which describes insecure file upload, a category that encompasses the lack of proper validation of uploaded files.
The operational impact of CVE-2017-2737 extends beyond simple unauthorized file placement within the system. Once an attacker successfully uploads malicious files, they can leverage this capability to establish persistent access, escalate privileges, or execute arbitrary code on the affected device. This capability aligns with ATT&CK technique T1197 which involves the use of cloud storage and file sharing services for persistence and command execution. The vulnerability creates opportunities for attackers to transform a legitimate administrative session into a full compromise of the device, potentially enabling them to intercept video communications, modify system configurations, or use the device as a pivot point for attacking other systems within the network.
Mitigation strategies for this vulnerability should focus on immediate software patching to the affected versions, as well as implementing additional security controls. Organizations should ensure that all affected VCM5010 devices are updated to the patched software version V100R002C50SPC100 or later. Beyond patching, network segmentation and access control measures should be implemented to limit the scope of potential exploitation. The principle of least privilege should be enforced, ensuring that only authorized personnel have access to the device's administrative interfaces. Additionally, monitoring and logging of file upload activities should be enabled to detect suspicious behavior patterns. Security teams should also consider implementing web application firewalls and content inspection mechanisms to provide additional layers of protection against similar vulnerabilities in the future.