CVE-2020-36037 in wuzhicms
Summary
by MITRE • 08/11/2023
An issue was disocvered in wuzhicms version 4.1.0, allows remote attackers to execte arbitrary code via the setting parameter to the ueditor in index.php.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/08/2023
The vulnerability identified as CVE-2020-36037 resides within wuzhicms version 4.1.0, representing a critical remote code execution flaw that directly impacts the content management system's security posture. This issue manifests through improper input validation within the ueditor component, which processes user-supplied data through the setting parameter in the index.php file. The flaw enables malicious actors to inject and execute arbitrary code on the affected server, fundamentally compromising the system's integrity and potentially providing attackers with full administrative control over the web application.
The technical implementation of this vulnerability stems from insufficient sanitization and validation of user inputs within the ueditor functionality. When the setting parameter is processed through index.php, the application fails to properly validate or sanitize the incoming data before incorporating it into the system's execution flow. This lack of input filtering creates an attack vector where remote adversaries can manipulate the parameter to inject malicious code that gets executed within the context of the web server process. The vulnerability aligns with CWE-94, which specifically addresses the execution of code due to improper handling of untrusted data, and represents a classic example of code injection vulnerabilities that have been extensively documented in security frameworks.
From an operational impact perspective, this vulnerability poses severe risks to organizations utilizing wuzhicms 4.1.0, as it allows attackers to execute arbitrary commands on the target system without requiring authentication or prior access. The remote exploitation capability means that attackers can leverage this flaw from anywhere on the internet, making it particularly dangerous for publicly accessible web applications. Successful exploitation could result in complete system compromise, data exfiltration, service disruption, and potential lateral movement within the network infrastructure. The vulnerability also increases the attack surface for more sophisticated attacks, as it provides a persistent entry point that can be used to establish backdoors or deploy additional malicious payloads.
Security mitigations for CVE-2020-36037 should prioritize immediate patching of the wuzhicms 4.1.0 application to the latest available version that addresses this specific vulnerability. Organizations should implement network-level protections such as web application firewalls that can detect and block malicious requests targeting the affected ueditor component. Input validation measures should be strengthened at multiple layers including application-level sanitization of the setting parameter and implementation of proper output encoding. Additionally, security monitoring should be enhanced to detect unusual patterns in the index.php file access and ueditor functionality usage. The remediation approach should follow ATT&CK framework principles by focusing on mitigating the initial access vector and preventing privilege escalation through proper input validation and access controls. System administrators should also consider implementing principle of least privilege for web application accounts and regularly audit the application's file permissions and configurations to prevent unauthorized modifications that could exacerbate the vulnerability's impact.