CVE-2021-27194 in Vision Pro
Summary
by MITRE • 03/25/2021
Cleartext transmission of sensitive information in Netop Vision Pro up to and including 9.7.1 allows a remote unauthenticated attacker to gather credentials including Windows login usernames and passwords.
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Analysis
by VulDB Data Team • 04/05/2021
The vulnerability identified as CVE-2021-27194 represents a critical security flaw in Netop Vision Pro software versions 9.7.1 and earlier, where sensitive authentication data is transmitted in cleartext over network connections. This weakness fundamentally compromises the confidentiality of user credentials and authentication information, creating a significant risk for organizations relying on this remote desktop and help desk solution. The flaw exists in the communication protocols used by the application to transmit authentication details between client and server components, exposing sensitive information to interception without encryption.
This vulnerability directly maps to CWE-312, which specifically addresses the exposure of sensitive information through cleartext transmission, and aligns with ATT&CK technique T1071.004 for application layer protocol usage. The technical implementation flaw occurs when the application fails to employ secure communication channels for credential transmission, instead relying on unencrypted protocols that allow network traffic inspection. Attackers can leverage standard packet sniffing tools to capture authentication data as it traverses the network, making this a particularly dangerous vulnerability given that no authentication is required to exploit it remotely.
The operational impact of this vulnerability extends beyond simple credential theft, as it enables attackers to establish persistent access to systems through stolen Windows login credentials. Once compromised, these credentials can be used for lateral movement within networks, privilege escalation, and unauthorized access to sensitive data and systems. Organizations using Netop Vision Pro in environments with unsecured network segments face immediate risk of credential compromise, potentially leading to complete system infiltration and data breaches. The vulnerability affects the core authentication mechanism of the application, making it a primary target for attackers seeking to establish unauthorized access to network resources.
Mitigation strategies for CVE-2021-27194 should prioritize immediate implementation of network segmentation and the deployment of network monitoring tools to detect and prevent cleartext credential transmission. Organizations must upgrade to Netop Vision Pro versions that address this vulnerability through proper encryption implementation and secure communication protocols. Network administrators should implement additional security controls such as mandatory encryption policies, secure remote access solutions, and comprehensive network traffic monitoring to detect unauthorized credential interception attempts. The vulnerability also highlights the importance of regular security assessments and vulnerability management programs to identify and remediate similar issues in legacy applications. System administrators should consider implementing multi-factor authentication and credential hardening measures as additional protective layers against credential compromise.