CVE-2017-15321 in FusionSphere OpenStack
Summary
by MITRE
Huawei FusionSphere OpenStack V100R006C000SPC102 (NFV) has an information leak vulnerability due to the use of a low version transmission protocol by default. An attacker could intercept packets transferred by a target device. Successful exploit could cause an information leak.
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Analysis
by VulDB Data Team • 01/18/2023
The vulnerability identified as CVE-2017-15321 affects Huawei FusionSphere OpenStack V100R006C006C000SPC102 (NFV) systems where the platform defaults to utilizing older, less secure transmission protocols for data communication. This represents a significant security weakness that directly contravenes industry best practices for network security and data protection. The affected system employs outdated cryptographic standards that fail to provide adequate encryption for data in transit, creating an exploitable condition that adversaries can leverage to compromise system integrity and confidentiality.
This information disclosure vulnerability stems from the system's default configuration using weak transmission protocols that lack modern security features such as strong encryption algorithms, proper authentication mechanisms, and secure key exchange methods. The implementation of these legacy protocols exposes the system to man-in-the-middle attacks where malicious actors can intercept and potentially decrypt sensitive data packets transmitted between system components. The vulnerability specifically targets the network communication layer where data flows between different NFV (Network Functions Virtualization) components, making it particularly dangerous in virtualized network environments where multiple services depend on secure data transmission.
The operational impact of this vulnerability extends beyond simple data interception, as it can lead to comprehensive information leakage that may include system credentials, configuration details, network topology information, and potentially sensitive operational data. Attackers exploiting this weakness could gain unauthorized access to critical system information that would enable them to plan more sophisticated attacks or compromise other system components. The vulnerability is particularly concerning in NFV environments where virtualized network functions operate in dynamic, interconnected networks, as the leaked information could facilitate lateral movement and escalation of privileges within the virtualized infrastructure. This type of information disclosure vulnerability aligns with CWE-200, which specifically addresses the exposure of sensitive information to unauthorized actors, and represents a fundamental failure in secure communication implementation.
Mitigation strategies for this vulnerability should prioritize immediate configuration updates to enforce the use of modern, secure transmission protocols such as TLS 1.2 or higher versions, along with robust encryption algorithms and proper certificate management. Organizations should implement network segmentation and monitoring solutions to detect and prevent unauthorized packet interception attempts. The remediation process must include comprehensive security assessments of all network communication channels and verification that updated protocols are properly enforced throughout the system. Additionally, regular security audits and vulnerability assessments should be conducted to ensure that similar configuration weaknesses do not exist in other system components, aligning with ATT&CK technique T1046 for network service scanning and T1071 for application layer protocol usage. System administrators should also implement proper network monitoring and alerting mechanisms to detect potential exploitation attempts and maintain detailed audit logs for forensic analysis in case of security incidents.