CVE-2022-2339 in NocoDB
Summary
by MITRE • 07/07/2022
With this SSRF vulnerability, an attacker can reach internal addresses to make a request as the server and read it's contents. This attack can lead to leak of sensitive information.
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Analysis
by VulDB Data Team • 08/26/2025
Server-Side Request Forgery vulnerabilities represent a critical class of security flaws that allow attackers to manipulate a server into making unintended requests to internal systems. The vulnerability described in CVE-2022-2339 specifically enables attackers to bypass normal access controls and access internal network resources that would typically be restricted from external access. This type of flaw falls under the Common Weakness Enumeration category CWE-918, which specifically addresses Server-Side Request Forgery vulnerabilities. The attack vector exploits the fundamental trust relationship between the server application and internal systems, where the server acts as an intermediary that can be manipulated to perform unauthorized operations.
The technical implementation of this vulnerability typically involves applications that accept user input to construct URLs or request parameters without proper validation or sanitization. When an application processes user-provided data to determine which external resources to access, an attacker can manipulate this input to redirect requests to internal addresses such as localhost, private network ranges, or other internal services. The server, operating with elevated privileges or network access, will then make requests to these internal destinations and potentially return the results to the attacker. This process can reveal sensitive information including internal system configurations, database contents, file system structures, or other confidential data that should remain isolated from external access. The vulnerability is particularly dangerous because it can be exploited from the internet-facing application layer to reach behind firewalls and network segmentation controls.
The operational impact of CVE-2022-2339 extends beyond simple information disclosure to potentially enable further exploitation within the internal network environment. Attackers can leverage this vulnerability to enumerate internal services, discover sensitive endpoints, and potentially identify additional vulnerabilities in internal systems that are not directly exposed to the internet. The attack can result in data breaches, privilege escalation opportunities, and complete compromise of internal network resources. Organizations may experience significant financial losses, regulatory penalties, and reputational damage from such incidents. The vulnerability also aligns with several techniques documented in the MITRE ATT&CK framework under the T1071.004 sub-technique for Application Layer Protocol: Web Protocols, where attackers use web application vulnerabilities to gain access to internal systems. The potential for lateral movement within networks makes this vulnerability particularly dangerous for organizations with complex internal infrastructures.
Mitigation strategies for this vulnerability must address both the immediate technical flaw and implement comprehensive security controls. Organizations should implement strict input validation and sanitization mechanisms that prevent user-controllable parameters from being used to construct URLs or request destinations. The use of allowlists for valid destinations, rather than blocklists, provides more robust protection against unauthorized access. Network segmentation and the principle of least privilege should be enforced to limit what internal systems can be accessed even if an attacker successfully exploits the vulnerability. Regular security testing including automated scanning and manual penetration testing helps identify such vulnerabilities before they can be exploited. Additionally, implementing proper logging and monitoring of external requests can help detect suspicious activities. The vulnerability demonstrates the importance of following secure coding practices and the need for comprehensive security awareness training for developers to prevent such flaws from being introduced into applications during the development lifecycle.