CVE-2017-20157 in Component Library
Summary
by MITRE • 12/31/2022
A vulnerability was found in Ariadne Component Library up to 2.x. It has been classified as critical. Affected is an unknown function of the file src/url/Url.php. The manipulation leads to server-side request forgery. Upgrading to version 3.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-217140.
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Analysis
by VulDB Data Team • 01/26/2023
The vulnerability identified as CVE-2017-20157 represents a critical server-side request forgery flaw within the Ariadne Component Library version 2.x and earlier. This security weakness resides in the src/url/Url.php file and specifically targets an unknown function within the library's URL handling mechanisms. The vulnerability classification as critical indicates the potential for severe impact on affected systems, as it enables attackers to manipulate the application's behavior through crafted requests that can bypass normal security controls. The affected library serves as a foundational component for web applications, making this flaw particularly dangerous as it could be exploited across multiple applications depending on the library's implementation.
The technical nature of this vulnerability stems from insufficient validation of URL inputs within the Ariadne Component Library's URL processing functionality. When applications utilizing this library process user-supplied URLs or URL parameters, the flawed implementation fails to properly sanitize or validate the input before using it in server-side operations. This allows malicious actors to craft requests that can trick the application into making unintended requests to internal systems or external malicious servers. The vulnerability enables attackers to potentially access internal network resources that should otherwise be protected from external access, creating a significant bypass of network security controls. This type of flaw aligns with CWE-918, which describes server-side request forgery vulnerabilities where applications fail to validate URLs used in server-side operations.
The operational impact of CVE-2017-20157 extends beyond simple data exfiltration, as it can enable attackers to perform various malicious activities including internal network reconnaissance, access to sensitive internal services, and potential privilege escalation within the application environment. Attackers could leverage this vulnerability to probe internal systems, access databases, or even gain access to administrative interfaces that are normally protected from external access. The server-side nature of the vulnerability means that the attack can originate from a user-facing interface and potentially reach internal systems that are normally isolated from direct internet access. This creates a significant risk for organizations that rely on the Ariadne Component Library for their web applications, as the vulnerability can be exploited without requiring additional privileges or access to internal systems.
The recommended mitigation strategy involves upgrading to version 3.0 of the Ariadne Component Library, which contains the necessary fixes to address this vulnerability. Organizations should prioritize this upgrade as a critical security measure, particularly for applications that handle user input through URL parameters or that rely on the affected library's URL processing capabilities. Additionally, implementing network segmentation, firewall rules, and web application firewalls can provide additional layers of protection while the upgrade is being implemented. Security teams should also conduct thorough vulnerability assessments to identify any applications using the affected library version and ensure proper patching. The vulnerability's classification under ATT&CK technique T1190 suggests that attackers may use this weakness as part of broader exploitation campaigns targeting web applications, making immediate remediation essential for maintaining overall security posture. Organizations should also review their application logs for any signs of exploitation attempts and implement proper monitoring to detect similar patterns in the future.