CVE-2022-23071 in Recipes
Summary
by MITRE • 06/19/2022
In Recipes, versions 0.9.1 through 1.2.5 are vulnerable to Server Side Request Forgery (SSRF), in the “Import Recipe” functionality. When an attacker enters the localhost URL, a low privileged attacker can access/read the internal file system to access sensitive information.
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Analysis
by VulDB Data Team • 06/19/2022
The vulnerability identified as CVE-2022-23071 affects the Recipes application within versions 0.9.1 through 1.2.5, presenting a critical server-side request forgery flaw that enables unauthorized access to internal systems. This vulnerability specifically manifests within the "Import Recipe" functionality, where the application fails to properly validate and sanitize user input before processing external resource requests. The flaw allows malicious actors to manipulate the import mechanism to make requests to internal network resources that should otherwise remain inaccessible to external users, effectively bypassing normal network security controls and access restrictions.
The technical implementation of this vulnerability stems from insufficient input validation and access control measures within the application's request handling pipeline. When users attempt to import recipes from external sources, the application accepts URLs without proper sanitization or restriction checks, enabling attackers to specify localhost or internal network addresses. This weakness directly maps to CWE-918, which categorizes server-side request forgery vulnerabilities as those that occur when applications fail to properly validate and control external requests. The vulnerability exploits the trust relationship between the application and its internal services, allowing attackers to leverage the application's network access to probe internal systems and potentially extract sensitive information.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the ability to map internal network topology, access internal services, and potentially escalate privileges within the affected system. Low-privileged attackers can exploit this vulnerability to gain unauthorized access to internal file systems, read configuration files, and potentially discover credentials or other sensitive data stored on internal servers. This represents a significant risk to organizations relying on the Recipes application, as it creates an attack vector that bypasses traditional perimeter security measures and allows for reconnaissance activities that would normally require direct access to the internal network. The vulnerability also aligns with ATT&CK technique T1071.004, which covers application layer protocol: DNS, as attackers can use the import functionality to perform DNS resolution and network discovery against internal resources.
Mitigation strategies for CVE-2022-23071 should focus on implementing robust input validation and access control mechanisms within the import functionality. Organizations should immediately upgrade to versions of the Recipes application that address this vulnerability, as vendors typically release patches to correct such security flaws. Additionally, network segmentation and firewall rules should be implemented to restrict outbound connections from the application server, particularly preventing access to localhost and internal network ranges. Input sanitization measures should be strengthened to validate URL formats and reject requests to internal network addresses. The application should also implement proper access controls that ensure only authorized users can perform import operations, and logging mechanisms should be enhanced to monitor and alert on suspicious import activities. Organizations should conduct thorough network audits to identify and remediate similar vulnerabilities in other applications that may exhibit similar patterns of insufficient input validation and access control enforcement.