CVE-2014-1900 in Camera
Summary
by MITRE
Y-Cam camera models SD range YCB003, YCK003, and YCW003; S range YCB004, YCK004, YCW004; EyeBall YCEB03; Bullet VGA YCBL03 and YCBLB3; Bullet HD 720 YCBLHD5; Y-cam Classic Range YCB002, YCK002, and YCW003; and Y-cam Original Range YCB001, YCW001, running firmware 4.30 and earlier, allow remote attackers to bypass authentication and obtain sensitive information via a leading "/./" in a request to en/account/accedit.asp.
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Analysis
by VulDB Data Team • 03/29/2019
The vulnerability identified as CVE-2014-1900 represents a critical authentication bypass flaw affecting multiple Y-cam camera models across various product ranges including SD, S, Classic, and Original series. This issue specifically impacts firmware versions 4.30 and earlier, creating a significant security risk for users deploying these devices in both residential and commercial environments. The vulnerability stems from improper input validation within the web interface authentication mechanism, allowing attackers to exploit a path traversal technique that circumvents the standard authentication checks. The affected devices include models such as YCB003, YCK003, YCW003, YCB004, YCK004, YCW004, YCEB03, YCBL03, YCBLB3, YCBLHD5, YCB002, YCK002, YCW003, YCB001, and YCW001, indicating a widespread issue affecting the entire Y-cam product line during the specified firmware period.
The technical exploitation of this vulnerability occurs through a specific manipulation of HTTP requests targeting the en/account/accedit.asp endpoint. Attackers can prepend a "/./" sequence to their requests, effectively bypassing the authentication mechanism and gaining unauthorized access to sensitive account information. This technique exploits a path traversal vulnerability that allows attackers to access restricted administrative functions without proper credentials. The flaw demonstrates a classic case of insufficient input sanitization and improper access control implementation, where the system fails to properly validate and sanitize user-supplied input before processing authentication requests. This vulnerability aligns with CWE-22, which describes path traversal or directory traversal vulnerabilities, and represents a direct violation of the principle of least privilege in access control mechanisms.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with the ability to obtain sensitive information including user credentials, account details, and potentially other confidential data stored within the camera's web interface. This compromise could lead to complete device takeover, enabling attackers to modify camera settings, access live video feeds, and potentially use the device as a pivot point for further attacks within the local network. The vulnerability's remote nature means that attackers do not require physical access to the devices or network proximity to exploit the flaw, making it particularly dangerous for users who have deployed these cameras in unsecured environments. Organizations and individuals relying on these security devices for surveillance purposes face significant risks, as the vulnerability undermines the fundamental security assumptions of the deployed cameras.
Mitigation strategies for CVE-2014-1900 should prioritize immediate firmware updates from Y-cam to address the authentication bypass vulnerability. Users should also implement network segmentation and access control measures to limit exposure, including firewall rules that restrict access to the camera web interfaces from unauthorized networks. Network administrators should consider implementing intrusion detection systems to monitor for suspicious access patterns and unauthorized attempts to access camera administration interfaces. Additionally, regular security assessments of networked devices should be conducted to identify similar vulnerabilities, with particular attention to input validation and access control implementations. This vulnerability demonstrates the importance of proper security testing during device development and highlights the need for regular firmware updates to address emerging threats. The issue also aligns with ATT&CK technique T1078 for valid accounts and T1566 for credential harvesting, emphasizing the broader attack surface implications of such authentication bypass vulnerabilities in networked security devices.