CVE-2015-1469 in HVG Video Gateway
Summary
by MITRE
time.htm in the web interface on SerVision HVG Video Gateway devices with firmware through 2.2.26a100 allows remote authenticated users to gain privileges by leveraging a cookie received in an HTTP response, a different vulnerability than CVE-2015-0929 and CVE-2015-0930.
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Analysis
by VulDB Data Team • 11/05/2024
The vulnerability described in CVE-2015-1469 represents a privilege escalation flaw within the SerVision HVG Video Gateway device web interface. This issue specifically affects firmware versions through 2.2.26a100 and resides in the time.htm component of the device's web management interface. The vulnerability operates through an authentication mechanism that improperly handles cookies received in HTTP responses, creating a path for authenticated attackers to elevate their privileges within the system.
The technical implementation of this flaw involves the device's web interface failing to properly validate or sanitize cookie values that are received from HTTP responses. When an authenticated user interacts with the time.htm page, the system processes cookies without adequate verification of their integrity or authorization scope. This cookie handling weakness allows malicious actors who already possess valid credentials to manipulate session tokens or authentication cookies in ways that grant them elevated privileges beyond their normal access levels. The vulnerability differs from related issues CVE-2015-0929 and CVE-2015-0930, indicating it operates through a distinct attack vector while sharing the same vulnerable product and firmware scope.
From an operational impact perspective, this vulnerability enables remote authenticated users to escalate their privileges within the SerVision HVG Video Gateway system. This privilege escalation could allow attackers to perform administrative functions such as modifying system configurations, accessing restricted device features, changing user accounts, or potentially gaining full system control. The remote nature of the attack means that an authenticated user with legitimate access to the device's web interface could exploit this flaw to gain unauthorized elevated privileges, creating a significant security risk for organizations relying on these video gateway devices for network infrastructure.
The security implications extend beyond simple privilege escalation as this vulnerability could serve as a stepping stone for more comprehensive attacks against the network infrastructure. Organizations using SerVision HVG Video Gateway devices with affected firmware versions face potential exposure to unauthorized access and system compromise. The vulnerability's presence in the web interface component suggests that any administrative functions accessible through the browser-based management interface could be compromised, potentially affecting video surveillance systems, network monitoring capabilities, and overall security posture. This type of flaw aligns with CWE-284, which addresses improper access control issues, and could potentially map to ATT&CK techniques involving privilege escalation and credential access through web application vulnerabilities.
Mitigation strategies should focus on immediate firmware updates to versions that address this specific cookie handling vulnerability. Organizations must also implement network segmentation to limit access to these devices, enforce strict access controls for web interface access, and monitor for unauthorized privilege escalation attempts. Regular security assessments of network infrastructure components, particularly those with web-based management interfaces, should be conducted to identify similar vulnerabilities. Additionally, implementing network monitoring solutions that can detect anomalous cookie behavior or privilege escalation attempts will help organizations maintain visibility into potential exploitation attempts. The remediation process should include comprehensive testing of updated firmware to ensure that the privilege escalation path is properly closed while maintaining device functionality and network operations.