CVE-2018-0677 in BN-SDWBP3
Summary
by MITRE
BN-SDWBP3 firmware version 1.0.9 and earlier allows attacker with administrator rights on the same network segment to execute arbitrary OS commands via unspecified vectors.
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Analysis
by VulDB Data Team • 04/27/2020
The vulnerability identified as CVE-2018-0677 affects the BN-SDWBP3 firmware version 1.0.9 and earlier, presenting a critical security risk for networked devices. This issue stems from inadequate input validation mechanisms within the firmware's command processing functionality, which allows authenticated attackers with administrative privileges on the same network segment to execute arbitrary operating system commands. The vulnerability represents a significant compromise of device security as it enables attackers to gain full control over the affected system's operational capabilities.
The technical flaw manifests through unspecified vectors that likely involve command injection or privilege escalation mechanisms within the firmware's administrative interface. Attackers exploiting this vulnerability can leverage their administrative access to manipulate system commands, potentially gaining root-level privileges and executing malicious code with complete system control. The vulnerability's classification aligns with CWE-77 and CWE-78 categories, which address command injection flaws that permit arbitrary command execution. These weaknesses typically arise from insufficient sanitization of user inputs or improper handling of command construction within the firmware's processing pipeline.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass complete system compromise and potential network infiltration. An attacker with administrative access on the same network segment can leverage this vulnerability to perform unauthorized actions including but not limited to data exfiltration, system modification, network reconnaissance, and establishment of persistent backdoors. The risk is particularly severe in environments where administrative credentials might be compromised or where network segmentation is inadequate, as the vulnerability requires minimal prerequisites for exploitation beyond network access and administrative credentials.
Mitigation strategies for CVE-2018-0677 should prioritize firmware updates to versions that address the command injection vulnerability and implement robust network segmentation measures to isolate critical devices. Organizations must ensure that administrative interfaces are not accessible from untrusted network segments and that strong authentication mechanisms are enforced. Network monitoring solutions should be deployed to detect suspicious command execution patterns and unauthorized administrative access attempts. The vulnerability demonstrates the importance of maintaining up-to-date firmware and implementing principle of least privilege access controls as recommended by cybersecurity frameworks such as NIST SP 800-53 and ISO 27001. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in network infrastructure devices that may be susceptible to similar command injection attacks.