CVE-2019-10665 : What You Need to Know
Discover the impact of CVE-2019-10665, a vulnerability in LibreNMS version 1.47 allowing RRDtool syntax injection. Learn how to mitigate and prevent potential attacks.
A flaw has been identified in LibreNMS version 1.47 where certain user input fields are not adequately validated, potentially leading to RRDtool injection vulnerabilities.
Understanding CVE-2019-10665
This CVE involves a vulnerability in LibreNMS version 1.47 that allows attackers to inject RRDtool syntax through specific scripts, enabling various malicious actions.
What is CVE-2019-10665?
The scripts handling graphing options in LibreNMS do not properly validate or encode user input, allowing for RRDtool syntax injection through specific scripts.
The Impact of CVE-2019-10665
Exploiting this vulnerability could lead to severe consequences, including revealing directory structures and file names, accessing file content, causing denial of service, or writing arbitrary files.
Technical Details of CVE-2019-10665
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The flaw in LibreNMS version 1.47 allows attackers to inject RRDtool syntax through user input fields, potentially leading to various malicious activities.
Affected Systems and Versions
- Affected Version: LibreNMS 1.47
- Other versions may also be impacted if they use the vulnerable scripts.
Exploitation Mechanism
- Attackers can inject RRDtool syntax with newline characters through the html/graph.php script.
- RRDtool syntax flexibility enables attackers to execute harmful actions.
Mitigation and Prevention
Protecting systems from CVE-2019-10665 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update LibreNMS to a patched version that addresses the vulnerability.
- Implement input validation and encoding mechanisms to prevent similar injection attacks.
Long-Term Security Practices
- Regularly monitor and audit user input handling mechanisms.
- Educate developers on secure coding practices to prevent injection vulnerabilities.
Patching and Updates
- Apply security patches provided by LibreNMS promptly to mitigate the vulnerability.