CVE-2020-21244 : Exploit Details and Defense Strategies

An issue was discovered in FrontAccounting 2.4.7. There is a Directory Traversal vulnerability that can empty a folder via admin/inst_lang.php.

Understanding CVE-2020-21244

This CVE identifies a Directory Traversal vulnerability in FrontAccounting 2.4.7 that allows an attacker to empty a folder through a specific file.

What is CVE-2020-21244?

CVE-2020-21244 is a security vulnerability found in FrontAccounting 2.4.7, enabling unauthorized users to perform a Directory Traversal attack via the admin/inst_lang.php file.

The Impact of CVE-2020-21244

This vulnerability can lead to unauthorized access and manipulation of files and directories, potentially causing data loss or unauthorized changes within the affected system.

Technical Details of CVE-2020-21244

FrontAccounting 2.4.7 is susceptible to a Directory Traversal vulnerability that can be exploited through the admin/inst_lang.php file.

Vulnerability Description

The vulnerability allows attackers to navigate outside the intended directory and delete or modify files within the system.

Affected Systems and Versions

Product: FrontAccounting
Version: 2.4.7

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating input to the affected file, enabling them to traverse directories and delete contents.

Mitigation and Prevention

To address CVE-2020-21244, follow these mitigation steps:

Immediate Steps to Take

Disable access to the vulnerable file or restrict it to authorized users only.
Implement input validation to prevent malicious directory traversal attempts.

Long-Term Security Practices

Regularly update and patch FrontAccounting to the latest version.
Conduct security audits to identify and address any potential vulnerabilities.

Patching and Updates

Ensure that FrontAccounting is regularly updated with the latest security patches to mitigate the risk of exploitation.