CVE-2020-9479 : Exploit Details and Defense Strategies
Learn about CVE-2020-9479, a directory traversal vulnerability in Apache AsterixDB allowing unauthorized access to files outside the UDF deployment directory. Find mitigation steps and prevention measures.
Apache AsterixDB is affected by a directory traversal vulnerability that allows specially crafted zip files to place files outside the UDF deployment directory. This issue impacts unreleased builds between specific commits.
Understanding CVE-2020-9479
This CVE involves a directory traversal vulnerability in Apache AsterixDB, potentially allowing unauthorized access to files outside the intended directory.
What is CVE-2020-9479?
CVE-2020-9479 is a security vulnerability in Apache AsterixDB that enables a maliciously crafted zip file to place files outside the designated UDF deployment directory.
The Impact of CVE-2020-9479
The vulnerability could lead to unauthorized access to sensitive files and directories, compromising the integrity and security of the affected system.
Technical Details of CVE-2020-9479
This section provides detailed technical information about the CVE.
Vulnerability Description
The issue arises when loading a UDF, allowing a specially crafted zip file to place files outside the UDF deployment directory, leading to a directory traversal vulnerability.
Affected Systems and Versions
- Product: Apache AsterixDB
- Vendor: Apache Software Foundation
- Affected Version: Apache AsterixDB git
Exploitation Mechanism
The vulnerability occurs in unreleased builds between commits 580b81aa5e8888b8e1b0620521a1c9680e54df73 and 28c0ee84f1387ab5d0659e9e822f4e3923ddc22d.
Mitigation and Prevention
Protect your systems from CVE-2020-9479 with these mitigation strategies.
Immediate Steps to Take
- Monitor for any unusual file access or changes in the UDF deployment directory.
- Implement strict file permissions to restrict unauthorized access.
Long-Term Security Practices
- Regularly update and patch Apache AsterixDB to the latest secure versions.
- Conduct security audits to identify and address any potential vulnerabilities.
Patching and Updates
Stay informed about security updates and patches released by Apache Software Foundation to address CVE-2020-9479.