CVE-2021-40870 is a critical vulnerability discovered in Aviatrix Controller versions 6.x prior to 6.5-1804.1922. This vulnerability allows for the unrestricted upload of a file with a dangerous type, enabling unauthenticated users to execute arbitrary code through directory traversal. With a CVSS base score of 9.8, this vulnerability poses a significant threat to organizations utilizing this software.
The severity of this vulnerability cannot be overstated, as it allows attackers to gain unauthorized access and control over systems. Organizations should prioritize patching immediately to avoid potential exploitation. The risk to organizations includes unauthorized access to sensitive data, system compromise, and operational disruption.
As of now, this vulnerability is included in the Known Exploited Vulnerabilities (KEV) catalog, indicating that it is actively being targeted in the wild. Organizations utilizing affected versions of Aviatrix Controller must act swiftly to apply available patches and mitigate the associated risks.
In summary, CVE-2021-40870 represents a critical threat due to its potential for severe impacts on confidentiality, integrity, and availability. Organizations are urged to take immediate action to secure their environments.
Vulnerability Details
An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.
The vulnerability has a CVSS score of 9.8, classified as critical. The high score indicates that the impact on confidentiality, integrity, and availability is severe, with organizations facing significant risks.
The vulnerability affects the Aviatrix Controller product, with its disclosure date on September 13, 2021. The associated Common Weakness Enumeration (CWE) is CWE-23.
Technical Analysis
The root cause of CVE-2021-40870 lies in the inadequate validation of file uploads, which allows malicious files to be uploaded to the server. The attack vector is through the network, with low complexity and no privileges required, making it accessible to any unauthenticated user.
This vulnerability requires no user interaction, allowing attackers to exploit the system without any action from legitimate users. The impact on confidentiality, integrity, and availability is high, as arbitrary code execution can lead to full system compromise.
Risk & Impact Analysis
The deployment of Aviatrix Controller in various environments increases the risk associated with this vulnerability. Organizations utilizing this software are susceptible to severe consequences, including data breaches and operational disruptions.
The vulnerability represents a significant threat to organizations, especially those in critical sectors where sensitive data is processed. With the vulnerability being actively exploited, the urgency for remediation is critical.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions include Aviatrix Controller versions 6.x prior to 6.5-1804.1922. Organizations using these versions should verify their installations and apply the necessary patches.
Mitigation & Remediation
Organizations should apply updates per vendor instructions. The recommended patch version is 6.5-1804.1922 or later. If immediate patching is not possible, organizations should implement configuration hardening and network controls to limit exposure.
Penetration testing can also help identify vulnerabilities and validate the effectiveness of remediation efforts.
Detection Guidance
Organizations should monitor logs for unusual file uploads and access patterns. Behavioral anomalies that could indicate exploitation should be flagged. Additionally, network signatures can be implemented to detect potential malicious activity.
AppSecure Threat Intelligence Insight
CVE-2021-40870 exemplifies the ongoing risks associated with file upload vulnerabilities, particularly in cloud-based services. Organizations must prioritize secure coding practices and implement robust validation mechanisms.
Security teams should also consider developing a comprehensive vulnerability management program to address these issues proactively and prevent future exploits.
For further insights, reviewing resources on vulnerability management and engaging in continuous security testing are crucial to maintaining a secure environment.
Additionally, understanding the implications of vulnerabilities like CVE-2021-40870 can guide organizations in implementing better security measures in their development and deployment processes.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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