CVE-2020-18439 : Exploit Details and Defense Strategies

An issue was discovered in the function edit_save_f in framework/admin/tpl_control.php in qinggan phpok 5.1, allowing attackers to write arbitrary files or get a shell.

Understanding CVE-2020-18439

This CVE describes a vulnerability in qinggan phpok 5.1 that enables attackers to perform unauthorized actions.

What is CVE-2020-18439?

The vulnerability in the function edit_save_f in qinggan phpok 5.1 allows malicious actors to write arbitrary files or gain shell access.

The Impact of CVE-2020-18439

The exploitation of this vulnerability can lead to unauthorized file writing and potential shell access, posing a significant security risk to affected systems.

Technical Details of CVE-2020-18439

This section provides technical insights into the vulnerability.

Vulnerability Description

The issue lies in the function edit_save_f in framework/admin/tpl_control.php in qinggan phpok 5.1, which lacks proper validation, enabling attackers to execute malicious actions.

Affected Systems and Versions

Affected Product: qinggan phpok 5.1
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the function edit_save_f to write unauthorized files or gain shell access.

Mitigation and Prevention

Protecting systems from CVE-2020-18439 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the vulnerable function or apply patches provided by the vendor.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement access controls and least privilege principles to limit unauthorized actions.

Patching and Updates

Apply security patches released by the vendor promptly to address the vulnerability and enhance system security.