CVE-2020-9242 in FusionCompute
Summary
by MITRE
FusionCompute 8.0.0 have a command injection vulnerability. The software does not sufficiently validate certain parameters post from user, successful exploit could allow an authenticated attacker to launch a command injection attack.
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Analysis
by VulDB Data Team • 08/17/2020
FusionCompute 8.0.0 contains a critical command injection vulnerability that stems from insufficient input validation of user-provided parameters within the system's authentication and administrative interfaces. This vulnerability exists in the software's handling of specific parameters that are processed after user submission, creating an attack surface where malicious inputs can be executed as system commands. The flaw specifically affects the command execution pipeline where user-supplied data is not properly sanitized or validated before being processed by the underlying system. This represents a classic command injection vulnerability that aligns with CWE-77 and CWE-89, which respectively address improper neutralization of special elements used in command execution and improper neutralization of special elements used in SQL commands, though the latter is more directly applicable to the command execution context. The vulnerability is particularly concerning as it requires only authenticated access to exploit, meaning that an attacker with valid credentials can leverage this flaw to execute arbitrary commands with the privileges of the FusionCompute service account.
The operational impact of this vulnerability extends beyond simple command execution, as it provides attackers with the ability to manipulate the underlying system and potentially escalate privileges within the FusionCompute environment. An authenticated attacker could exploit this vulnerability to execute system commands that might include file manipulation, process control, network reconnaissance, or even system compromise. The attack vector typically involves crafting malicious input that gets processed by the vulnerable component, which then executes the injected commands without proper sanitization. This vulnerability directly maps to ATT&CK technique T1059.001 for command and scripting interpreter and T1068 for exploit for privilege escalation, as it provides a mechanism for executing arbitrary commands and potentially elevating access privileges within the virtualized environment. The implications are particularly severe in cloud and virtualization environments where FusionCompute manages critical infrastructure components.
Mitigation strategies for this vulnerability should focus on implementing robust input validation mechanisms and parameter sanitization throughout the FusionCompute system. Organizations should immediately apply vendor patches and updates that address the specific command injection flaw in the software's parameter handling components. Network segmentation and access controls should be implemented to limit the blast radius of potential exploitation, ensuring that only authorized personnel can access the vulnerable administrative interfaces. Additionally, implementing web application firewalls and input validation layers can provide additional protection against command injection attacks. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the virtualization infrastructure. The implementation of principle of least privilege should be enforced to minimize the impact of successful exploitation, ensuring that even if an attacker compromises an account, they cannot execute commands with elevated system privileges. Organizations should also consider implementing logging and monitoring solutions that can detect anomalous command execution patterns and alert security teams to potential exploitation attempts.