CVE-2023-47862 in AVideo
Summary
by MITRE • 01/10/2024
A local file inclusion vulnerability exists in the getLanguageFromBrowser functionality of WWBN AVideo dev master commit 15fed957fb. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can send a series of HTTP requests to trigger this vulnerability.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 01/28/2024
The vulnerability identified as CVE-2023-47862 represents a critical local file inclusion flaw within the WWBN AVideo platform, specifically within its getLanguageFromBrowser functionality. This issue stems from inadequate input validation and sanitization mechanisms that fail to properly filter user-supplied data before processing it within the application's language selection mechanism. The vulnerability exists in the development master branch at commit 15fed957fb, indicating it affects the software's core localization functionality where browser language preferences are detected and processed. The flaw allows malicious actors to manipulate the language detection process by injecting crafted file paths or references that bypass normal validation checks.
The technical exploitation of this vulnerability occurs through carefully constructed HTTP requests that target the getLanguageFromBrowser endpoint. When the application processes these requests, it fails to properly validate or sanitize the language parameter, allowing attackers to inject malicious file paths that can result in arbitrary code execution. This type of vulnerability falls under CWE-98, which specifically addresses local file inclusion issues where applications include files based on user input without proper validation. The attack vector leverages the application's trust in browser language headers and fails to implement proper input sanitization, creating a pathway for attackers to execute arbitrary code on the affected system.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with a direct path to execute arbitrary code on the target system. Once exploited, attackers can potentially gain full control over the application server, leading to data breaches, system compromise, and further lateral movement within the network. The vulnerability's local nature means that successful exploitation requires only network access to the affected application, making it particularly dangerous in environments where the application is exposed to untrusted users or networks. This flaw could enable attackers to read sensitive files, execute commands, install malware, or establish persistent backdoors, with the potential for significant business disruption and regulatory compliance violations.
Mitigation strategies for CVE-2023-47862 should prioritize immediate patching of the affected WWBN AVideo platform to address the input validation and sanitization issues within the getLanguageFromBrowser functionality. Organizations should implement proper parameter validation that rejects any non-standard language codes or file path references that could lead to file inclusion attacks. The implementation of a whitelist approach for language codes, combined with proper input encoding and sanitization, would significantly reduce the attack surface. Additionally, network-level protections such as web application firewalls should be configured to monitor and block suspicious HTTP requests targeting the vulnerable endpoint. This vulnerability aligns with ATT&CK technique T1505.003, which covers the use of web shell techniques for maintaining persistence and executing commands on compromised systems. Regular security assessments and input validation reviews should be conducted to prevent similar vulnerabilities in future development cycles, ensuring that all user-supplied data is properly validated before being processed by the application's core functionality.