CVE-2024-7927 in ZZCMS
Summary
by MITRE • 08/19/2024
A vulnerability classified as critical was found in ZZCMS 2023. Affected by this vulnerability is an unknown functionality of the file /admin/class.php?dowhat=modifyclass. The manipulation of the argument skin[] leads to path traversal. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 09/05/2024
CVE-2024-7927 represents a critical path traversal vulnerability within ZZCMS 2023 that resides in the administrative component of the web application. This vulnerability specifically affects the file /admin/class.php and is triggered through the skin[] parameter within the dowhat=modifyclass functionality. The flaw allows an attacker to manipulate file paths in a manner that could enable unauthorized access to sensitive system files or directories beyond the intended scope of the application's file operations.
The technical nature of this vulnerability aligns with CWE-22, which describes path traversal or directory traversal attacks where attackers can access files and directories that are stored outside the web root folder by manipulating variables that reference files with "dot-dot-slash" sequences and other variants. The attack vector is remote, meaning an attacker does not require physical access to the system and can exploit this weakness through network-based interactions with the vulnerable web application. This remote exploitability significantly increases the attack surface and potential impact of the vulnerability.
The operational impact of CVE-2024-7927 is severe as path traversal vulnerabilities can lead to unauthorized data access, system compromise, and potential full system takeover. An attacker could potentially read sensitive configuration files, database credentials, or other critical system information that should remain protected. The disclosure of the exploit to the public means that malicious actors can immediately leverage this vulnerability without requiring additional reconnaissance or development time, creating an urgent security risk for affected organizations.
The attack scenario typically involves an attacker sending a specially crafted HTTP request to the vulnerable endpoint with manipulated skin[] parameters that contain directory traversal sequences such as ../ or ..\.. The application fails to properly validate or sanitize these inputs, allowing the traversal to occur and potentially enabling access to arbitrary files on the server. This vulnerability particularly affects web applications that do not implement proper input validation and access controls for administrative functions.
Organizations using ZZCMS 2023 should immediately apply the vendor-provided patches or updates to address this critical vulnerability. Additionally, implementing network-level mitigations such as web application firewalls, input validation rules, and access controls can provide additional defense-in-depth. Security monitoring should include detection of suspicious path traversal attempts in web application logs, and regular security assessments should verify that no unauthorized file access has occurred. The vulnerability also aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing) as attackers may use this weakness as a stepping stone for further reconnaissance or initial access phases in their attack campaigns.