CVE-2022-25299 : Exploit Details and Defense Strategies
Learn about CVE-2022-25299, a critical vulnerability in cesanta/mongoose allowing arbitrary file write. Includes impact, affected versions, and mitigation steps.
A detailed analysis of CVE-2022-25299 that involves an arbitrary file write vulnerability in the package cesanta/mongoose.
Understanding CVE-2022-25299
This CVE highlights a critical arbitrary file write vulnerability in cesanta/mongoose, impacting versions prior to 7.6.
What is CVE-2022-25299?
CVE-2022-25299 affects the package cesanta/mongoose before version 7.6. It involves unsafe handling of file names during upload, allowing attackers to write files to unintended locations outside the target folder.
The Impact of CVE-2022-25299
The vulnerability has a base severity of 'Critical' with a CVSS base score of 9.8. It poses a high impact on confidentiality, integrity, and availability, with no privileges required for exploitation.
Technical Details of CVE-2022-25299
Here are the key technical details associated with CVE-2022-25299:
Vulnerability Description
The vulnerability lies in the inadequate file name handling within the mg_http_upload() method, enabling malicious actors to write files to arbitrary locations outside the intended directory.
Affected Systems and Versions
The arbitrary file write vulnerability impacts cesanta/mongoose versions earlier than 7.6.
Exploitation Mechanism
Attackers can exploit this flaw by manipulating file names during the upload process using the mg_http_upload() method.
Mitigation and Prevention
Understanding the necessary steps to mitigate and prevent CVE-2022-25299 is crucial.
Immediate Steps to Take
Users should update their cesanta/mongoose package to version 7.6 or newer to address the vulnerability. Additionally, ensure file uploads are restricted to designated directories to prevent unauthorized access.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security assessments, and monitoring file upload mechanisms can enhance long-term security.
Patching and Updates
Stay informed about security patches and updates released by cesanta/mongoose. Regularly apply patches and keep the software up to date to protect against potential vulnerabilities.