CVE-2020-15347 in CloudCNM SecuManager
Summary
by MITRE • 09/29/2022
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has the q6xV4aW8bQ4cfD-b password for the axiros account.
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Analysis
by VulDB Data Team • 10/25/2022
The vulnerability identified as CVE-2020-15347 represents a critical hard-coded credential issue within Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1. This security flaw exposes a default password that remains unchanged throughout the product lifecycle, creating an inherent weakness that adversaries can exploit for unauthorized access to network management systems. The specific credential q6xV4aW8bQ4cfD-b associated with the axiros account presents a significant risk as it provides direct administrative access to the SecuManager platform, which is designed to manage and monitor network security configurations across enterprise environments.
This vulnerability fundamentally violates security best practices by embedding persistent authentication credentials within the software deployment, effectively creating a backdoor that remains accessible across all affected installations. The presence of such hard-coded credentials directly maps to CWE-798, which classifies the use of hard-coded passwords as a critical weakness in software security. The axiros account typically represents a privileged administrative user role within network management systems, providing access to configuration settings, user management, and security policy enforcement mechanisms that control the entire network infrastructure.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it enables attackers to manipulate network security policies, modify firewall rules, and potentially establish persistent access points within the enterprise network. From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1078.004 which covers valid accounts used for lateral movement and persistence. Security professionals must recognize that once an attacker gains access through this hard-coded credential, they can leverage the administrative privileges to conduct reconnaissance, escalate privileges, and potentially compromise other network segments that rely on the SecuManager for security orchestration.
Organizations utilizing affected Zyxel CloudCNM SecuManager versions face immediate operational risks including potential data breaches, network infiltration, and unauthorized modification of security controls. The vulnerability's persistence across multiple versions suggests a systemic design flaw that requires immediate remediation. Security teams should implement immediate credential rotation procedures and network segmentation to limit the potential impact. The remediation process requires administrators to change the default password associated with the axiros account and conduct comprehensive vulnerability assessments across all network management systems to identify similar hard-coded credentials. Additionally, this vulnerability demonstrates the critical importance of proper software supply chain security practices and the necessity of implementing robust authentication mechanisms that do not rely on default credentials for administrative access.