CVE-2023-0877 in froxlor
Summary
by MITRE • 02/17/2023
Code Injection in GitHub repository froxlor/froxlor prior to 2.0.11.
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Analysis
by VulDB Data Team • 07/05/2025
The vulnerability identified as CVE-2023-0877 represents a critical code injection flaw discovered in the froxlor web hosting control panel repository prior to version 2.0.11. This issue stems from insufficient input validation and sanitization within the application's processing logic, creating a pathway for malicious actors to execute arbitrary code on affected systems. The vulnerability affects the open-source hosting management solution that serves thousands of web hosting environments globally, making it a significant concern for system administrators and security practitioners. The flaw manifests when the application fails to properly validate user-supplied data before incorporating it into executable code paths, particularly within configuration management and automated deployment functions.
The technical implementation of this vulnerability aligns with CWE-94, which describes improper control of generation of code, commonly known as code injection. Attackers can exploit this weakness by crafting malicious input that gets processed and executed as part of the application's normal operations. The vulnerability specifically impacts the froxlor control panel's handling of administrative commands and configuration parameters, where user inputs are not adequately sanitized before being passed to system execution functions. This creates a scenario where an authenticated attacker with appropriate privileges could inject malicious code that would be executed with the privileges of the web server process, potentially leading to complete system compromise.
From an operational perspective, the impact of CVE-2023-0877 extends beyond simple code execution, as it provides attackers with the capability to escalate privileges and persist within compromised environments. The vulnerability can be leveraged to establish backdoors, exfiltrate sensitive data, or deploy additional malware payloads. Given that froxlor is commonly used in shared hosting environments, a successful exploitation could potentially affect multiple customer accounts on a single server. The attack surface is particularly concerning because the vulnerability can be triggered through legitimate administrative functions, making detection more challenging for security monitoring systems. This type of vulnerability directly maps to ATT&CK technique T1059, which covers command and scripting interpreter, as attackers can utilize the code injection to execute arbitrary commands on the target system.
Mitigation strategies for this vulnerability require immediate patching to version 2.0.11 or later, which contains the necessary input validation fixes and sanitization measures. Organizations should implement comprehensive access controls and privilege separation to limit the potential damage from any successful exploitation attempts. Network segmentation and monitoring of administrative functions can help detect anomalous behavior indicative of exploitation attempts. Security teams should also conduct thorough audits of all froxlor installations to identify systems running vulnerable versions and ensure proper patch management procedures are in place. Additionally, implementing web application firewalls and input validation rules can provide additional layers of protection while awaiting official patches. The remediation process should include verification that all user inputs are properly sanitized and that the application's code execution paths do not directly incorporate unsanitized user data without appropriate validation mechanisms.