Flask-AppBuilder is a development framework built on top of Flask. Versions prior to 3.3.4 contain an improper authentication vulnerability in the REST API. This vulnerability allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. This issue specifically affects non-database authentication types and new REST API endpoints.
The severity of this vulnerability is classified as high, with a CVSS score of 8.1. This indicates a significant risk to organizations utilizing this framework. The potential for unauthorized access to sensitive data or functionalities requires immediate attention from security teams.
Currently, no public exploit has been confirmed for this vulnerability, but the risk remains high. Organizations should prioritize patching by upgrading to Flask-AppBuilder version 3.3.4 to mitigate the risk of exploitation.
Risk to organizations includes unauthorized access to sensitive REST API endpoints, which could lead to data breaches or unauthorized operations. Organizations should address this vulnerability in their priority patch cycle.
Vulnerability Details
The CVE-2021-41265 vulnerability is categorized under CWE-287, which pertains to improper authentication. It was first published on December 9, 2021, and has been modified since. The vulnerability allows attackers to bypass authentication mechanisms and gain unauthorized access to API endpoints.
The affected product is Flask-AppBuilder, specifically versions prior to 3.3.4. The vulnerability was disclosed by the vendor, and users are advised to upgrade to the patched version to ensure security.
Technical Analysis
The root cause of the vulnerability lies in improper authentication mechanisms within the REST API of Flask-AppBuilder. The attack vector is network-based, and the attack complexity is low, allowing even low-privileged users to exploit the vulnerability without requiring user interaction.
This vulnerability has a high impact on confidentiality and integrity, as it allows unauthorized users to gain access to confidential data and modify it. However, it does not impact the availability of the application.
Risk & Impact Analysis
Organizations deploying Flask-AppBuilder with versions prior to 3.3.4 face significant risks, particularly if their applications rely on REST APIs for sensitive operations. The potential for unauthorized access could lead to data breaches and loss of trust among users.
Organizations should prioritize patching immediately to mitigate any risks associated with this vulnerability. Given the high CVSS score and the potential for exploitation, it is critical to act swiftly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Flask-AppBuilder are all versions prior to 3.3.4. It is crucial for organizations to ensure they are running the latest version to protect against this vulnerability.
Mitigation & Remediation
Organizations should upgrade to Flask-AppBuilder version 3.3.4 immediately to patch this vulnerability. If immediate upgrades are not feasible, implementing strict network controls and monitoring for unusual API access patterns may help mitigate risks temporarily.
Detection Guidance
Monitoring logs for unexpected API access attempts and implementing alerts for high-risk actions can aid in early detection of potential exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-41265 is underscored by its potential impact on applications relying heavily on REST APIs. This vulnerability highlights the need for continuous security assessments in development frameworks.
Organizations should regularly review their security posture and consider adopting a comprehensive penetration testing strategy to identify and address vulnerabilities proactively.
Additionally, organizations should consider implementing a robust application security assessment program to evaluate their security infrastructure regularly.
Finally, organizations should stay informed about emerging threats and best practices in order to enhance their security frameworks. Leveraging insights from industry experts can greatly improve risk management and mitigation strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)