CVE-2019-9889 : Exploit Details and Defense Strategies
Learn about CVE-2019-9889, a security flaw in Vanilla before version 2.6.4 allowing attackers to execute arbitrary code via Directory Traversal with File Inclusion. Find mitigation steps and prevention strategies here.
Vanilla before version 2.6.4 is vulnerable to a Directory Traversal with File Inclusion exploit in the getSingleIndex function of the AddonManager class. Attackers can execute arbitrary code on the web server by manipulating the type value in a require call.
Understanding CVE-2019-9889
This CVE involves a security vulnerability in Vanilla before version 2.6.4 that allows attackers to perform a Directory Traversal with File Inclusion attack.
What is CVE-2019-9889?
In Vanilla before version 2.6.4, a flaw exists within the getSingleIndex function of the AddonManager class. This vulnerability enables attackers to execute arbitrary code on the web server by manipulating the type value in a require call.
The Impact of CVE-2019-9889
The exploitation of this vulnerability can lead to an attacker executing malicious code on the web server with the same privileges as the web server context.
Technical Details of CVE-2019-9889
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability lies in the getSingleIndex function of the AddonManager class in Vanilla before version 2.6.4. It allows for a Directory Traversal with File Inclusion attack by manipulating the type value in a require call.
Affected Systems and Versions
- Affected System: Vanilla before version 2.6.4
- Affected Versions: All versions before 2.6.4
Exploitation Mechanism
By manipulating the type value in a require call, attackers can exploit this vulnerability to perform a Directory Traversal with File Inclusion attack.
Mitigation and Prevention
To address CVE-2019-9889, follow these mitigation and prevention strategies.
Immediate Steps to Take
- Upgrade Vanilla to version 2.6.4 or later to mitigate the vulnerability.
- Implement input validation to prevent malicious manipulation of the type value.
Long-Term Security Practices
- Regularly update and patch software to address security vulnerabilities.
- Conduct security audits and penetration testing to identify and remediate potential weaknesses.
Patching and Updates
- Apply security patches and updates provided by Vanilla to ensure the latest security fixes are in place.