CVE-2018-10946 in RealPresence Debut
Summary
by MITRE
An issue was discovered in versions earlier than 1.3.0-66872 for Polycom RealPresence Debut that allows attackers to arbitrarily read the admin user's password via the admin web UI.
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Analysis
by VulDB Data Team • 06/23/2020
The vulnerability identified as CVE-2018-10946 represents a critical security flaw in Polycom RealPresence Debut video conferencing devices running firmware versions prior to 1.3.0-66872. This issue manifests as an improper access control weakness that enables unauthenticated attackers to gain unauthorized access to administrative credentials through the device's web user interface. The vulnerability specifically targets the authentication mechanism of the web management interface, creating a pathway for attackers to extract sensitive administrative password information without requiring valid credentials or prior access to the system.
The technical implementation of this vulnerability stems from inadequate input validation and access control mechanisms within the web UI component of the Polycom device. Attackers can exploit this flaw by directly accessing specific web endpoints or parameters within the administrative interface that should normally be restricted to authenticated administrators. The vulnerability allows for arbitrary file reading capabilities that extend beyond normal operational boundaries, enabling attackers to retrieve administrative password hashes or plaintext credentials stored within the device's memory or configuration files. This weakness operates at the application layer and represents a classic case of insufficient authorization checks as defined by CWE-285, where the system fails to properly verify that requests originate from authorized users with appropriate privileges.
The operational impact of this vulnerability is severe and multifaceted for organizations utilizing affected Polycom devices. Once exploited, attackers gain full administrative control over the video conferencing system, which can serve as a foothold for broader network infiltration. The compromised device can be used to conduct man-in-the-middle attacks, monitor communications, modify settings, or establish persistent access points within the network. This vulnerability directly aligns with several tactics and techniques outlined in the MITRE ATT&CK framework under the credential access and privilege escalation domains, specifically targeting the use of valid accounts and exploitation of vulnerabilities to gain elevated privileges. Organizations may face significant compliance violations and regulatory penalties if sensitive communications are intercepted or if the compromised device serves as an entry point for more extensive attacks.
Mitigation strategies for CVE-2018-10946 must prioritize immediate firmware updates to versions 1.3.0-66872 or later, which contain the necessary patches to address the improper access control vulnerability. Network segmentation should be implemented to isolate video conferencing devices from critical network segments, reducing the potential impact of exploitation. Organizations should also conduct thorough network monitoring to detect unusual access patterns or unauthorized attempts to access administrative interfaces. Additional security measures include implementing strong network access controls, disabling unnecessary services, and regularly auditing device configurations to ensure proper access controls remain in place. The vulnerability demonstrates the importance of maintaining up-to-date firmware and implementing defense-in-depth strategies to protect against known security flaws in networked devices. Regular vulnerability assessments and penetration testing should be conducted to identify similar weaknesses in other networked equipment that may present analogous security risks.