CVE-2019-18952 : Vulnerability Insights and Analysis
Learn about CVE-2019-18952, a vulnerability in SibSoft Xfilesharing allowing arbitrary file uploads up to version 2.5.1, potentially leading to remote code execution. Find mitigation steps and preventive measures here.
Arbitrary file upload can be done through SibSoft Xfilesharing up to version 2.5.1 using the cgi-bin/up.cgi feature. By exploiting CVE-2019-18951, an attacker can achieve remote code execution by serving a .html file over HTTP that contains specific short codes.
Understanding CVE-2019-18952
SibSoft Xfilesharing through version 2.5.1 is vulnerable to arbitrary file upload, potentially leading to remote code execution.
What is CVE-2019-18952?
CVE-2019-18952 is a security vulnerability in SibSoft Xfilesharing that allows attackers to upload arbitrary files, which can be exploited to execute remote code.
The Impact of CVE-2019-18952
This vulnerability can be exploited by malicious actors to upload files and execute code remotely, potentially leading to unauthorized access and control of the affected system.
Technical Details of CVE-2019-18952
SibSoft Xfilesharing up to version 2.5.1 is susceptible to this security flaw.
Vulnerability Description
The vulnerability allows attackers to upload arbitrary files through the cgi-bin/up.cgi feature, enabling them to execute remote code.
Affected Systems and Versions
- SibSoft Xfilesharing up to version 2.5.1
Exploitation Mechanism
Attackers can exploit this vulnerability by uploading a .html file containing specific short codes over HTTP, leveraging the arbitrary file upload capability.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-18952.
Immediate Steps to Take
- Disable the cgi-bin/up.cgi feature if not essential for operations
- Implement proper input validation to prevent arbitrary file uploads
- Regularly monitor and audit file uploads for suspicious activities
Long-Term Security Practices
- Keep software and systems up to date with the latest security patches
- Conduct regular security assessments and penetration testing to identify vulnerabilities
- Educate users and administrators about secure file upload practices
Patching and Updates
- Apply patches and updates provided by SibSoft to address the vulnerability in Xfilesharing