CVE-2017-11351 in MU553S
Summary
by MITRE
Axesstel MU553S MU55XS-V1.14 devices have a default password of admin for the admin account.
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Analysis
by VulDB Data Team • 11/15/2019
The Axesstel MU553S MU55XS-V1.14 device represents a network communication appliance that suffers from a critical default credential vulnerability. This weakness stems from the device manufacturer's failure to implement proper authentication mechanisms during the initial device provisioning process. The device ships with a hardcoded administrative password of "admin" which remains unchanged unless explicitly modified by the system administrator. This vulnerability falls under the Common Weakness Enumeration category CWE-798, which specifically addresses the use of hard-coded credentials in software applications and network devices.
The technical flaw manifests as an authentication bypass opportunity that allows any attacker with network access to gain administrative privileges on the device. The default password configuration creates an inherent security risk because it provides a known credential that attackers can readily exploit through automated scanning tools or brute force attempts. Network administrators who fail to change the default password after device deployment leave their network infrastructure vulnerable to unauthorized access. This vulnerability directly impacts the device's confidentiality, integrity, and availability by enabling malicious actors to modify network configurations, access sensitive data, or disrupt network services.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential network compromise and broader security breaches. An attacker who successfully exploits this default credential can manipulate network routing, modify firewall rules, access network monitoring data, and potentially establish persistent access points within the network infrastructure. The device's role as a communication gateway makes it particularly attractive to threat actors seeking to establish footholds within enterprise networks. This vulnerability aligns with several ATT&CK techniques including credential access through default credentials and privilege escalation by leveraging known administrative passwords. The risk is compounded when multiple devices within the same network share the same default credentials, creating a chain reaction of potential compromises.
Mitigation strategies for this vulnerability require immediate administrative action including changing the default password to a strong, unique credential that meets industry security standards. Network administrators should implement comprehensive device management policies that mandate password changes upon initial deployment and establish regular credential rotation schedules. The device should be configured to enforce strong password policies, including complexity requirements and account lockout mechanisms. Network segmentation and access control measures should be implemented to limit administrative access to authorized personnel only. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar default credential issues across the entire network infrastructure. Additionally, manufacturers should be encouraged to implement secure boot processes that prevent unauthorized access to device configuration interfaces and ensure that default credentials are either disabled or require explicit administrator confirmation before activation.