CVE-2017-2719 in FusionSphere OpenStack
Summary
by MITRE
FusionSphere OpenStack with software V100R006C00 and V100R006C10RC2 has two command injection vulnerabilities due to the insufficient input validation on one port. An attacker can exploit the vulnerabilities to gain root privileges by sending some messages with malicious commands.
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Analysis
by VulDB Data Team • 01/11/2023
The FusionSphere OpenStack vulnerability identified as CVE-2017-2719 represents a critical command injection flaw affecting software versions V100R006C00 and V100R006C10RC2. This vulnerability stems from inadequate input validation mechanisms within the system's network communication layer, specifically targeting a particular port that handles incoming messages. The flaw allows malicious actors to inject arbitrary commands through crafted message payloads, exploiting the system's failure to properly sanitize user inputs before processing them. Such insufficient validation creates a pathway for attackers to execute unauthorized commands with elevated privileges, ultimately compromising the entire system infrastructure.
The technical exploitation of this vulnerability occurs through the manipulation of input data transmitted through the vulnerable port, where the system fails to adequately filter or validate incoming messages. Attackers can construct malicious payloads containing shell commands that get executed within the system context, bypassing normal security controls and access restrictions. This command injection vulnerability directly maps to CWE-77 which categorizes improper neutralization of special elements used in commands, and specifically aligns with CWE-94 which addresses the execution of code in a command injection scenario. The vulnerability enables attackers to escalate privileges from regular user level to root access, providing complete control over the affected OpenStack environment.
The operational impact of CVE-2017-2719 extends beyond simple privilege escalation, as it fundamentally undermines the security posture of FusionSphere OpenStack deployments. Once exploited, attackers can access sensitive data, modify system configurations, install malware, and potentially establish persistent backdoors within the cloud infrastructure. The vulnerability affects the core integrity of the OpenStack platform, compromising the isolation between virtual machines and the underlying host system. This type of attack aligns with ATT&CK technique T1059 which covers command and scripting interpreter, and T1068 which addresses exploit for privilege escalation. Organizations running these affected versions face significant risk of data breaches, service disruption, and compliance violations that could result in substantial financial and reputational damage.
Mitigation strategies for CVE-2017-2719 require immediate implementation of input validation controls and network segmentation measures to restrict access to the vulnerable port. System administrators should apply the vendor-provided patches and updates as soon as they become available, while implementing strict input filtering mechanisms that prevent malicious command sequences from being processed. Network-level protections including firewalls and intrusion detection systems should be configured to monitor and block suspicious traffic patterns targeting the vulnerable port. Additionally, organizations should conduct comprehensive security assessments to identify similar vulnerabilities across their OpenStack deployments and establish monitoring protocols to detect potential exploitation attempts. Regular security audits and vulnerability scanning should be implemented to ensure ongoing protection against command injection attacks and other related threats.